RS-14-029, Braidwood Station, Kankakee River Fish Monitoring Program, 2012

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Braidwood Station, Kankakee River Fish Monitoring Program, 2012
ML14030A273
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RS-14-029
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BRAIDWOOD STATION KANKAKEE RIVER FISH MONITORING PROGRAM, 2012 Prepared for EXELON NUCLEAR February 2013 HDR Engineering, Inc.Environmental Science & Engineering Consultants 10207 Lucas Road Woodstock, Illinois 60098 A BRAIDWOOD STATION KANKAKEE RIVER FISH MONITORING PROGRAM, 2012 Prepared for EXELON NUCLEAR Warrenville, illinois HDR Engineering, Inc.Environmental Science & Engineering Consultants 10207 Lucas Road Woodstock, Illinois 60098 Copyright 2013 by EXELON CORPORATION ALL RIGHTS RESERVED ACKNOWLEDGMENTS The field work and data analysis for this project was conducted by HDR Engineering, Inc.(HDR). Flow data for the Kankakee River near Wilmington, Illinois was obtained from the United States Geological Survey's (USGS 05527500) internet web site (www.usgs.gov).

This report was prepared by HDR and reviewed by Exelon Nuclear. Particular appreciation is extended to Jeremiah Haas and the environmental staff at Braidwood Station for their cooperation and assistance.

HDR Engineering, Inc.

ABSTRACT Forty-three species of fish representing 12 families were collected from the Kankakee River and Horse Creek in 2012. No threatened, endangered, or unusual species were collected during either the electrofishing or seining sampling efforts in August, 2012. Electrofishing and seining resulted in the collection of 3009 fish weighing 98.4 kg. Longear sunfish (15.9%), very small unidentified sunfish species (13.1%), bullhead minnow (12.9%), bluntnose minnow (11.9%), largemouth bass (9.6%), spotfin shiner (9.2%), and blackstripe topminnow (8.2%) were the most common species collected.

Nine (0.30%) of the 3009 fish collected exhibited some form of external anomaly. Lesions (70.0%), eroded fins (20.0%), and deformities (10.0%) accounted for all of the 10 anomalies observed.

Tumors, fish lice, leeches, black spot, anchor worm, and cysts were not observed on any of the 3009 fish collected in 2012. The low incidence of DELT (Deformities, Eroded fins, Lesions, and Tumors) anomalies noted during these studies continues to indicate that the fish assemblage in this portion of the Kankakee River is in very good condition during the August sampling period.Mean relative weights (Wr) of fish within the study area ranged from 92.0 for northern pike to 123.7 for redear sunfish. With the possible exception of a very few individuals, the remaining fish that were collected were in good to excellent condition during the August sampling period.The species most commonly afflicted with anomalies was golden redhorse (six individuals), followed by rock bass, largemouth bass, and northern hog sucker (one individual each). The highest percentage of fish with anomalies occurred at Location 3R where two (0.99%) of the 202 fish examined exhibited some form of external anomaly.Spawning success and population structure were evaluated for four selected species. Recruitment for rock bass appeared to be moderately weak in 2012, while longear sunfish recruitment appeared to be moderate based on seining and electrofishing data. However, longear sunfish recruitment may have been actually strong based on the number of small individuals that were HDR Engineering, Inc.

identified only to Lepomis species. Many of these 395 very small individuals were likely longear sunfish. Smallmouth bass and largemouth bass recruitment appeared to be moderately strong and very strong, respectively.

As a point of interest, due to recent stocking efforts in the Kankakee River by the Illinois Department of Natural Resources, 34 walleye measuring from 136 to 587 mm in total length were collected during the 2012 sampling program. Twenty-seven (79.4%) of these individuals were most likely Age 0 or Age 1 fish that measured from 136 to 197 mm.Based on length frequency data, at least four age classes of walleye were included among the 34 walleye captured.No identifiable change in the fish community has occurred due to the operation of the Braidwood Station intake and discharge.

Fish communities sampled in the vicinity of the intake and discharge have occasionally resulted in the capture of fewer species than those observed at the other locations.

Variability in the catch rate, species diversity, and condition of fish by location appears to be related to differences in habitat rather than Station operation.

In particular, extensive beds of aquatic macrophtyes have developed near the Station in recent years, which can influence the ability to capture fish and perhaps alter species composition over time. Based on visual observations, there was a substantial increase in aquatic macrophytes within the study area during 2012 compared to August 2009, 2010, and 2011. The increase in aquatic vegetation during 2012 influenced the numbers and composition of the fish collected, primarily sunfish species and other taxa that utilize this habitat for spawning and protection against predation.

Much of the increase in aquatic vegetation noted in 2012 can be attributed to the extremely low river flows that occurred throughout the Kankakee River during the entire year.iii HDR Engineering, Inc.

TABLE OF CONTENTS Page No.ACKNOWLEDGEMENTS ABSTRACT TABLE OF CONTENTS LIST OF TABLES LIST OF FIGURES 1.0 Introduction 2.0 Methods 2.1 Electrofishing 2.2 Seining 2.3 Sample Processing 2.4 Water Quality Measurements 2.5 Diversity Index 2.6 Relative Weights 3.0 Results and Discussion 3.1 Species Occurrence 3.2 Relative Abundance and CPE 3.3 Historical Comparison 3.4 Length-Frequency Distribution 3.5 Community Characteristics 3.5.1 Diversity 3.5.2 Anomalies 3.5.3 Relative Weight 3.6 Physicochemical Data 4.0 Summary 5.0 References Cited i ii iv v vii 1-1 2-1 2-1 2-4 2-4 2-4 2-5 2-5 3-1 3-I 3-1 3-12 3-16 3-22 3-22 3-26 3-30 3-30 4-I 5-1 iv HDR Engineering, Inc.

LIST OF TABLES Table No. Title Page No.2-1 Fish Sampling Locations in the Kankakee River Near Braidwood Station. 2-2 2-2 Intercept (a) and Slope (b) Parameters for Standard Weight (Wr)Equations with Minimum Lengths Recommended for Application.

2-7 3-1 Fish Taxa Collected from the Kankakee River and Horse Creek in the Braidwood Station Aquatic Monitoring Area -Braidwood Station, 1977-2012.

3-2 3-2 Total Catch of Pallid Shiner and River Redhorse Collected During the Braidwood Station Aquatic Monitoring Program -Braidwood Station, 1977-2012.

3-5 3-3 Total Catch by Method for Fish Species Collected from the Kankakee River and Horse Creek -Braidwood Station, 2012. 3-6 3-4 Fish Captured by Electrofishing in the Kankakee River and Horse Creek -Braidwood Station, 2012. 3-9 3-5 Total Catch of Fish Collected from the Kankakee River and Horse Creek -Braidwood Station, 1977-2012.

3-11 3-6 Percent Composition by Total Abundance and Rank of Dominant Fish Species Collected by Electrofishing and Seining from all Stations in the Kankakee River and Horse Creek -Braidwood Station, 2010-2012.

3-13 3-7 Percent Composition by Biomass and Rank of Dominant Fish Species Collected by Electrofishing and Seining from all Stations in the Kankakee River and Horse Creek -Braidwood Station, 2010-2012.

3-15 3-8 Mean Diversity Indices for the Catch of Fish at Each Location Collected by Electrofishing

-Braidwood Station, 1977-2012.

3-24 V HDR Engineering, Inc.

LIST OF TABLES (Continued)

Table No. Title Page No.3-9 Mean Diversity Indices for the Catch of Fish at Each Location Collected by Seining -Braidwood Station, 1977-2012.

3-27 3-10 Number of Anomalies Associated with Fish Collected at Each Sampling Location on the Kankakee River and Horse Creek -Braidwood Station, 2012. 3-29 3-11 Mean Relative Weights of Fish Collected from the Kankakee River and Horse Creek Near Braidwood Station -August 2012. 3-31 vi HDR Engineering, Inc.

LIST OF FIGURES Figure No. Caption Page No.1-1 Fish Sampling Locations in the Kankakee River Near Braidwood Station. 1-2 2-1 Illustration of Electrofishing Boat Path During Sampling in the Braidwood Station Monitoring Area. 2-3 3-1 Length-Frequency Distribution of Rock Bass Collected from the Kankakee River and Horse Creek, August 2012. 3-17 3-2 Length-Frequency Distribution of Longear Sunfish Collected from the Kankakee River and Horse Creek, August 2012. 3-18 3-3 Length-Frequency Distribution of Smallmouth Bass Collected from the Kankakee River and Horse Creek, August 2012. 3-21 3-4 Length-Frequency Distribution of Largemouth Bass Collected from the Kankakee River and Horse Creek, August 2012. 3-23 3-5 Monthly Mean, Maximum and Minimum Kankakee River Flows Recorded by the USGS Gauging Station Near Wilmington, Illinois, January 1981 Through September 2012. 3-33 vii HDR Engineering, Inc.

1.0 INTRODUCTION

Construction of the Braidwood Nuclear Generating Station and its associated riverside intake and discharge structures provided an opportunity to gather fisheries information from the Kankakee River near the Station. These studies were initiated to determine the effects of construction and plant operation on the river. Units I and II began commercial operation on 29 July and 17 October, 1988, respectively.

The Kankakee River is a seventh order stream that encompasses a drainage area of approximately 13,400 km2 (Healy 1979). The geology, hydrology, and water quality of the Kankakee River combine to form a diversity of habitats and aquatic life, creating one of the finest rivers in Illinois (Smith 1971, Skelly & Sule 1983, Brigham et al. 1984). The river is a scenic, cultural, recreational and industrial resource (Barker et al. 1967, Graham et al. 1984) that has remained relatively unaltered while still meeting the needs of the public, municipalities, and private interests.

The Braidwood Station Aquatic Monitoring Area, near Custer Park, Will County, Illinois, consists of a 2.5-km reach of the Kankakee River and its tributary, Horse Creek (Figure 1-1) and is located 23.5 km upstream from the confluence of the Kankakee and Des Plaines Rivers (Kwak 1991). The monitoring program in the Kankakee River and Horse Creek near the intake and discharge structures was initiated by Westinghouse Electric Corporation in October 1972 and continued through March 1973. A report, issued 30 November 1973, discussed results and projections of construction impact. Results were also discussed in the Braidwood Station Environmental Report and the Braidwood Final Environmental Statement.

The Illinois Natural History Survey annually conducted sampling near Braidwood Station from 1977 through 1990, excluding 1980 when no sampling occurred.

In 1991 and 1992, the program was continued by Lawler, Matusky & Skelly Engineers (LMS), using a modified sampling design that included a reduction of electrofishing effort by one-half (LMS 1992). The sampling program was conducted for one year by Environmental Science & Engineering in 1993. Following 1993, LMS again conducted sampling on the Kankakee River from 1994 to 2004. In 2005, LMS 1-1 HDR Engineering, Inc.

V 0 5 6KIK3N KILOMETERS 5R 0 500 METERS PARK FIGURE 1-1. FISH SAMPLING LOCATIONS IN THE KANKAKEE RIVER NEAR BRAIDWOOD STATION.1-2 merged with HDR Engineering Incorporated (HDR). Sampling has been conducted by HDR since 2005. The summer sampling program near Braidwood Station has remained relatively unchanged since 1991. This continuing database allows documentation of environmental changes, the resulting response of the fish community, and an estimation of the environmental quality of the river.The objectives of the 2012 program were to: 1. Evaluate the year-to-year changes in the fish populations of the Kankakee River, including their annual reproduction, recruitment, and condition.

2. Provide a basis for examining the effects of Station operation, if any, on the Kankakee River and Horse Creek fishery.1-3 HDR Engineering, Inc.

2.0 METHODS 2.1 Electrofishing Electrofishing was conducted using a boat-mounted boom-type electrofisher utilizing a 5000 watt, 230 volt AC, 10 amp, three-phase Model GDP-5000 Multiquip generator equipped with volt/amp meters and a safety-mat cutoff switch. The electrode array consisted of three pairs of stainless steel cables (1.5 m long, 6.5 mm in diameter) arranged 1.5 m apart and suspended perpendicular to the longitudinal axis of the boat 1.5 m off the bow. Each of the three electrodes was powered by one of the phases. Electrofishing samples were collected on 8 August during the first sampling effort and on 22 August during the final survey period.Sampling was conducted at five locations in the Kankakee River and at one site in Horse Creek (Location 2). Each sampling location (except for Location 2) consists of two stations, designated by the location number and "R" or "LU, indicating the right or left side of the river as one looks upstream (Figure 1-1 & Table 2-1). Electrofishing was conducted along the shoreline on each side of the river at Locations 1, 3, 4, 5, and 6. At Locations 1, 5, and 6, each station [(L)eft and (R)ight banks] was electrofished for 30 minutes. Because of the close proximity of Locations 3 and 4, sampling boundaries for those locations were smaller and sampling duration was reduced accordingly to 15 minutes. In Horse Creek, the entire width of the stream was electrofished for 30 minutes from its mouth to a point approximately 75 m (250 ft) upstream.

Electrofishing was conducted such that the first "run" at each location was in a downstream direction through the middle of the shocking zone. The second "run" was conducted in an upstream direction, adjacent to the first "run" and as close to the bank as water depth allowed. The third "run", if necessary, was made in a downstream direction outside of, but adjacent to, the two previous runs (Figure 2-1). Sampling was restricted to the period of time ranging from one-half hour after sunrise to one-half hour before sunset.2-1 HDR Engineering, Inc.

TABLE 2-1 FISH SAMPLING LOCATIONS IN THE KANKAKEE RIVER NEAR BRAIDWOOD NUCLEAR STATION LOCATION DESCRIPTION I Approximately 1000 m upstream of the Station's cooling pond make-up water intake structure.

This sampling transect is not influenced by intake or discharge of cooling pond water.2 Located in Horse Creek from its confluence with the Kankakee River up to 300 m upstream, or as far as water depth and obstructions allow.Horse Creek represents a potential fish spawning area for Kankakee River fishes.3 Located in the area of Braidwood Station's intake structure.

4 Located in the area of Braidwood Station's discharge structure.

This area may be affected by thermal and chemical discharges from the cooling pond.5 Located approximately 300 m downstream form the discharge structure.

This site represents near-field recovery from possible impacts associated with discharge from the cooling pond.6 Located approximately 1.6 km downstream from the discharge structure, this location represents far-field recovery from possible impacts associated with discharge from the cooling pond.2-2 UPSTREAM BOUNDARY THIRD RUN FIRST RUN SECOND RUN I CURRENT DIRECTION DOWNSTREAM BOUNDARY FIGURE 2-1. ILLUSTRATION OF ELECTROFISHING BOAT PATH DURING SAMPLING IN THE BRAIDWOOD STATION MONITORING AREA.2-3 2.2 Seining Shoreline seining was used as a second collection method at each of the eleven stations described previously (Figure 1-1 and Table 2-1). Seine samples were collected on 9 August during the first sampling effort and on 21 August during the final survey period. Seine dimensions were 25 ft by 4 ft of 3/16-inch ace mesh, with a 4-ft by 4-ft bag of 3/16-inch ace mesh. Two seine hauls (designated as A and B) were made at each location during each sampling effort. Each haul was made in a upstream direction covering approximately 30 meters of shoreline, with the second haul being conducted upstream of the first. Seine collections may be performed concurrently with electrofishing sampling, but not at the same location during the same day. Seining was restricted to the hours commencing one-half hour after sunrise to one-half hour before sunset.2.3 Sample Processing All fish were identified to the lowest positive taxonomic level and enumerated.

For each gear type, up to 25 individuals of a species were measured for total length (mm) and weight (g) at each station. Any remaining individuals of that species were counted and weighed en masse. Minnow species (excluding carp) were counted and weighed en masse. Specimens that could not be positively identified in the field were returned to the laboratory for identification.

References used to facilitate identification included Pflieger (1975)i Smith (1979), and Trautman (1981). All fish were also examined externally for evidence of disease, parasites, abnormalities, and emaciation.

A voucher collection of fish species identified during the study has been compiled and stored at Exelon Nuclear's Quad Cities Station.2.4 Water Quality Measurements Three physicochemical parameters (temperature, dissolved oxygen [DO], and pH) were measured in conjunction with the sampling program. These data were collected at each station prior to each sampling effort. Additionally, conductivity was measured prior to each electrofishing collection.

All of the physicochemical measurements were taken at mid-depth in the water column.Temperature (TC), dissolved oxygen (ppm), and conductivity

(.mhos) were measured using an 2-4 HDR Engineering, Inc.

YSI Model 30 handheld conductivity and temperature meter and an YSI Model 55 handheld dissolved oxygen and temperature meter. A Cole-Parmer pH Testerl was used to determine pH.All instruments were calibrated prior to each sampling event.2.5 Diversity Index Diversity indices (Shannon 1948) were computed for electrofishing and seine collections taken at each location and were compared with those calculated in previous years. Shannon-Wiener's Diversity Index was calculated for each fish species using: H. -E-' log 2 n-,-in n where: H,= the symbol for the amount of diversity in a group of S species.n, = the number of individuals of the id, species in the sample.n = the total number of individuals in the sample.s = the total number of species in the sample.2.6 Relative Weights Condition indices are frequently used as indicators of physiological well-being.

One of the more traditional approaches to the assessment of condition uses the Fulton-type (Anderson and Gutreuter 1983) condition factor (K). As indicators of physiological well-being, condition index values should reflect proximate body composition of individual fish, e.g., lipid content, protein content, caloric content, etc. (Murphy et al. 1991). Stange and Pelton (1987) found little relationship between K and fat percentage in composite samples of forage fishes. However, strong correlations have been demonstrated between relative weight (Wr) and proximate fat content in several species (Murphy et al. 1991). Thus, Wr is a reliable index of fat reserves in these species and, as such, is a useful indicator of short-term growth potential or potential for 2-5 HDR Engineering, Inc.

resistance to nutritional stress. Most Illinois State agencies, including the Illinois Department of Natural Resources (IDNR) and the Illinois Natural History Survey (INHS), currently utilize W, as the preferred measure of condition.

Development of the W, index (Wege and Anderson 1978) represents a refinement of the relative condition factor concept which allows for interpopulational comparisons by making the standard weight-length regression species-specific rather than population-specific or state-specific.

Relative weight is calculated as: Wr = W X 100 W., where: W = measured weight W, = the length-specific standard weight predicted by a weight-length regression constructed to represent the species as a whole Length specific standard weight functions are in the form: log,,, W., = a + (b X log,, total length)where: a = the Y intercept b = the slope Murphy et al. (1991) published relative weight equations for 26 species. Equations used in this report to calculate W, (Table 2-2) are the same as those proposed in that publication.

Minimum lengths of fish for these calculations are included in this table and are necessary for most species 2-6 HDR Engineering, Inc.

TABLE 2-2 INTERCEPT (a) AND SLOPE (b) PARAMETERS FOR STANDARD WEIGHT (Wr)EQUATIONS WITH MINIMUM TOTAL LENGTHS RECOMMENDED FOR APPLICATION' INTERCEPT SLOPE MINIMUM REFERENCES OR SPECIES (a) (b) LENGTH (mm) DEVELOPER Gizzard shad Rainbow trout Brook trout Chinook salmon Northern pike Common carp Bigmouth buffalo Smallmouth buffalo River carpsucker White sucker Channel catfish Flathead catfish Striped bass White bass Hybrid bass Largemouth bass Smallmouth bass Rock bass Bluegill Green sunfish Black crappie White crappie Walleye Sauger Yellow perch Freshwater drum-5.376-5.194-5.085-4.661-5.369-4.418-4.956-5.069-4.754-5.070-5.649-5.156-4.924-5.066-5.201-5.316-4.983-4.883-5.374-4.814-5.618-5.642-5.453-5.446-5.386-5.433 3.170 3.098 3.043 2.901 3.059 2.859 3.092 3.092 2.952 3.060 3.243 3.082 3.007 3.081 3.139 3.191 3.055 3.083 3.316 3.056 3.345 3.332 3.180 3.157 3.230 3.208 180 200 130 200 100 280 280 280 280 280 150 115 115 150 180 100 80 80 100 100 150 70 100 100 Anderson & Gutreuter (1983)Anderson (1980)Whelan & Taylor (1984)Halseth et al. (1990)Willis (1989)Stephen (1978)Stephen (1978)Stephen (1978)Stephen (1978)Anderson (1980)Anderson (1980)D. Laue Brown & Murphy (1991)Brown & Murphy (1991)Brown & Murphy (1991)Wege & Anderson (1978)Anderson (1980)Marteney (1983)Hillman (1982)D. Gabelhouse, Jr. (1984a)Neumann & Murphy (1992)Neumann & Murphy (1992)Murphy et al. (1990)Guy et al. (1990)Willis et al. (1991)M. Brown' From Murphy et al. 1991.2-7 because: 1) the accuracy in weighing fish decreases markedly for individuals shorter than the established minimum length, and 2) minimum lengths represent the length at which the variance to mean ratio for log 1 0 sharply increases (Murphy et al. 1991).2-8-DR Engineering, Inc.

3.0 RESULTS AND DISCUSSION 3.1 Species occurrence.

Eighty-four species of fish representing 19 families have been collected from the Kankakee River and Horse Creek from 1977 through 2012 (Table 3-1). No threatened or endangered species were collected in 2012. However, river redhorse (Moxostoma carinatum), currently listed as threatened in Illinois, and pallid shiner (Notropis amnis), currently listed as endangered in Illinois (Illinois Endangered Species Protection Board 2009), have been collected on an irregular basis during most years of this sampling program. Since 1990, the number of river redhorse collected (14 specimens) has declined substantially from those observed in the 1970's and 1980's (357 specimens).

Based on these data, river redhorse has become much less abundant in the Kankakee River near Braidwood Station during recent years. All but two (99.5%) of the 373 river redhorse collected since 1977 have been captured by electrofishing, while 390 (68.4%) of the 570 pallid shiners have been captured by minnow seine (Table 3-2).3.2 Relative Abundance and CPE. Electrofishing and seining efforts in 2012 resulted in the capture of 3009 fish representing 43 species and 12 families (Table 3-3). Longear sunfish was the most abundant species collected, representing 15.9% (479 individuals) of the total catch by number. Sunfish species (13.1%), bullhead minnow (12.9%), bluntnose minnow (11.9%), largemouth bass (9.6%), spotfin shiner (9.2%), and blackstripe topminnow (8.2%) were the only other species to individually comprise more than 5 % of the numerical catch. Electrofishing and seining biomass was dominated by carp (26.2%), golden redhorse (15.1%), smallmouth bass (13.7%), channel catfish (8.9%), walleye (8.7%), largemouth bass (5.6%), and longear sunfish (5.6%).Electrofishing efforts resulted in the collection 1894 individuals representing 37 species (Table 3-3). The catch was dominated by longear sunfish, which comprised 20.6% of all fish captured.Bullhead minnow (14.4%), bluntnose minnow (11.9%), largemouth bass (10.9%), spotfin shiner (10.7%), blackstripe topminnow (5.5%), and sand shiner (5.2%) were the only other species to numerically comprise more than 5 % of the total catch. Excluding the 15 gizzard shad that were captured by electrofishing (excluded for historical comparisons), cyprinids (including carp)dominated the catch comprising 45.0% of the electrofishing catch and were represented by nine 3-1 HDR Engineering, Inc.

TABLE 3-1 FISH TAXA COLLECTED FROM THE KANKAKEE RIVER AND HORSE CREEK IN THE BRAIDWOOD STATION AQUATIC MONITORING AREA Braidwood Station -1977-2012 QVIWNITTVTr NW A /1W (V 1 MI%4T-N NAMITP Petromyzontidae Lampreys Lepisosteidae Lepisosteus osseus Amniidae Amia calva Anguillidae Anguilla rostrata Clupeidae Dorosoma cepedianum Dorosoma petenense Salmonidae Onchorhynchus mykiss Umbridae Umbra limi Esocidae Esox americanus Esox lucius Cyprinidae Carassius auratus Cyprinella lutrensis Cyprinella spilopterus Cyprinus carpio Campostoma anomalum Notropis buccatus Notropis amnis Hybopsis dorsalis Luxilis chrysocephalus Lythrurus umbratilis Nocomis biguttatus Notemigonus crysoleucas Notropis atherinoides Notropis buchanani Notropis stramineus Notropis rubellus Notropis volucellus Opsopoeodus emiliae Phenacobius mirabills Pimephales notatus Pimephales promelas Pimephales vigilax Scardinius erthropthalmus Semotilus atromaculatus Longnose gar Bowfin American eel Gizzard shad Threadfin shad Rainbow trout Central mudminnow Grass pickerel Northern pike Goldfish Red shiner Spotfin shiner Common carp Central stoneroller Silverjaw minnow Pallid shiner Bigmouth shiner Striped shiner Redfin shiner Hornyhead chub Golden shiner Emerald shiner Ghost shiner Sand shiner Rosyface shiner Mimic shiner Pugnose minnow Suckermouth minnow Bluntnose minnow Fathead minnow Bullhead minnow Rudd Creek chub 3-2 TABLE 3-1 (Continued)

FISH TAXA COLLECTED FROM THE KANKAKEE RIVER AND HORSE CREEK IN THE BRAIDWOOD STATION AQUATIC MONITORING AREA Braidwood Station -1977-2012.QrCVNTTWW N A MVF COMMON NAME Catostomidae Ictiobus bubalus Ictiobus cyprinellus Ictiobus niger Carpiodes carpio Carpiodes cvprinus Moxostoma anisurum Moxostorna carinatum Moxostoma duquesnei Moxostoma ervthrurum Moxostoma macrolepidotum Hvpentelium ni-ricans Catostomus commersoni Minytrema melanops Erimvzon oblon:us Erirnvzon sucetta Ictaluridae Ameiurus melas Ameiurus natalis Amiurus nebulosus Ictalurus punctatus Noturus flavus Noturus zvrinus Pvlodictis olivairis Aphredoderidae Aphredoderus savanus Cvvrinodontidae Fundulus notatus Poeciliidae Gambusia affinis Atherinidae Labidesthes sicculus Percichthvidae Morone chrvsops Morone mississippiensis Morone americana Centrarchidae Micropterus dolomieu Micropterus sahnoides Lepomis cvanellus Lepomis Lepomis szdosus Lepomis humilis Smallmouth buffalo Bigmouth buffalo Black buffalo River carpsucker Quillback Silver redhorse River redhorse Black redhorse Golden redhorse Shorthead redhorse Northern hog sucker White sucker Spotted sucker Creek chubsucker Lake chubsucker Black bullhead Yellow bullhead Brown bullhead Channel catfish Stonecat Tadpole madtom Flathead catfish Pirate perch Blackstripe topminnow Mosquitofish Brook silverside White bass Yellow bass White perch Sniallmouth bass Largemouth bass Green sunfish Pumpkinseed Warmouth Orangespotted sunfish 3-3 TABLE 3-1 (Continued)

FISH TAXA COLLECTED FROM THE KANKAKEE RIVER AND HORSE CREEK IN THE BRAIDWOOD STATION AQUATIC MONITORING AREA Braidwood Station -1977-2012 irTl1'N TPTnT N A 1%47?('(MMN NNAMF Lepoinis macrochirus Lepoinis meealofis Lepomis microlophus Ambloplites rupestris Pomoxis annularis Pomoxis nizromnaculatuts Percidae Sander vitreum Perca flavescens Percina caprodes Percina inaculata Percina phoxocephala Etheostoma caeruleum Etheostonia inicroperca Etheostoma nigrum Etheostonia zonale Sciaenidae Aplodinotus grunniens Bluegill Lon-vear sunfish Redear sunfish Rock Bass White crappie Black crappie Walleve Yellow perch Logperch Blackside darter Slenderhead darter Rainbow darter Least darter Johnny darter Banded darter Freshwater drum 3-4 TABLE 3-2 TOTAL CATCH OF PALLID SHINER AND RIVER REDHORSE COLLECTED DURING THE BRAIDWOOD STATION AQUATIC MONITORING PROGRAM Braidwood Station -1977-2012 PALLID SHINER RIVER REDHORSE ELECTROFISHING MINNOW SEINE ELECTROFISHING MINNOW SEINE Year No. CPE2 No. CPEh No. CPE No. CPEh 1977 1978 1979 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2O04 2005 2006 2007 2008 2009 2010 2011 2012 Totals 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.10 0.00 0.33 0.00 0.56 1.00 1.33 0.12 0.78 9.11 0.89 1.67 0.56 0.90 0.90 0.78 0.22 0.11 0.24 0.00 0.00 0.22 0.00 0 1 9 3 2 1 49 15 4 0 0 0 12 152 27 0 4 10 22 20 3 2 12 12 2 10 7 5 6 0 0 0 0 0 0 0.00 0.02 0.20 0.07 0.05 0.02 l.11 0.34 0.09 0.00 0.00 0.00 0.27 3.45 0.61 0.00 0.09 0.23 0.50 0.45 0.07 0.05 0.27 0.27 0.05 0.23 0.16 0.11 0.14 0.00 0.00 0.00 0.00 0.00 0.00 69 10 46 26 10 4 5 18 102 17 9 11 30 1 0 5 2 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 3.45 0.50 2.30 1.30 0.50 0.20 0.25 0.90 5.10 0.85 0.45 0.55 1.50 0.12 0.00 0.56 0.22 0.00 0.11 0.12 0.00 0.11 0.00 0.00 0.00 0.11 0.00 0.00 0.00 0.00 0.12 0.11 0.00 0.00 0.00 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 180 0.39'390 0.25d 371 0.81S 2 <0.0Id'Based on 20.00-hours of effort from 1977-1990; 8.45 hours5.208333e-4 days <br />0.0125 hours <br />7.440476e-5 weeks <br />1.71225e-5 months <br /> in 1991; 9.00 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> from 1992-1996, 1998-2002, 2004-2007 and 2009-2012; and 8.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> in 1997 and 2008 and 8.75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br /> of effort in 2003 (all three due to a fallen tree in Horse Creek).hBased on 44 seine hauls.'Based on 456.20 total hours of effort.dBased on 1540 total seine hauls.3-5 TABLE 3-3 TOTAL CATCH BY METHOD FOR FISH SPECIES COLLECTED FROM THE KANKAKEE RIVER AND HORSE CREEK Braidwood Station -2012 ELECTROFISHING SEINING TOTAL TAXON NUMBER W NUMBER WE.GH N WEIGHT No. % (g) % No. % (9) % No. % (g) %Longoose gar Gzzasrd shad Grass pickerel Northern pike Carp Rcdfri shiner Striped shiner Rosyrace shiner Spotfin shiner Sand shiner FFlhcad minnow Bluntnose nminnow Bullhead minnow Creek chub Homyhead chub River carpsucker Spoiled sticker Silver rcdhtorsa Black redhorse Golden rcdhorse Northem hoB sucker Black bollhead Channel caifish Tadpole madtom Blackstripe topminnow Mosquitorish Brook silverside 3 0.2 155 0.2 3 0.1 155 0.2 15 0.8 219 0.2 2 0.2 8 0.2 17 0.6 227 0.2 12 0.6 188 0.2 12 1.1 231 6.4 24 0.8 419 0.4 1 0.1 410 0.4 I < 0.1 4tO 0.4 II 0.6 25.815 27.2 2 0.2 32 0.9 13 0.4 25.047 26.2 II 0.6 20 < 0.1 Is 1.6 58 1.6 29 1.0 78 0.1 22 1.2 58 0.1 5 0.4 16 0.4 27 0.9 74 0.1 6 0.5 14 0.4 6 0.2 14 < 0.1 203 10.7 434 0.5 74 6.6 200 5.6 277 9.2 634 0.6 98 5.2 174 0.2 9 0.8 20 0.6 107 3.6 194 0.2 2 0.1 6 <0.1 2 0.2 8 0.2 4 0.1 14 <0.1 225 11.9 558 0.6 133 11.9 305 8.5 358 11.9 863 0.9 272 14.4 672 0.7 115 10.3 314 8.7 387 12.9 986 1.0 I 0.1 3 0.1 I <0.1 3 <0.1 2 0.1 9 <0.1 2 0.1 9 <0.1 2 0.1 2250 2.4 2 0.1 2250 2.3 I 0.1 94 0.1 I < 0.1 94 0.1 I 0.1 235 0.2 I < 0.1 235 0.2 2 0.1 929 1.0 2 0.1 929 0.9 20 1.1 14.839 15.6 20 0.7 14.839 15.1 2 0.1 1440 1.5 2 0.1 1440 1.5 I 0.1 I <0.1 I <0.) I <0,1 7 0.4 8754 9.2 17 1.5 25 0.7 24 0.8 8779 8.9 I 0.1 2 0.1 I <0.1 2 <0.1 104 5.5 115 0.1 143 12.8 160 4.4 247 8.2 275 0.3 5 0.4 II 0.3 5 0.2 II < 01 47 2. 5 58 0.1 47 1.6 58 0.1 TABLE 3-3 (Continued).

TOTAL CATCH BY METHOD FOR FISH SPECIES COLLECTED FROM THE KANKAKEE RIVER AND HORSE CREEK Braidwood Station -2012 ELECTROFISHING SEINING TOTAL TAXON NUMBE WEIGHT NUMBER WEIG NUMBER WEIGHT No. % (8) % No. % (8) % No. % (g) %Sunfish spp.Rock boss Grccn sunfish Orangcspoted sunfish Bluegill Lonoear sunfsis Redcar sunfish Smallmoulh bass Largemouth bass White crnppic Johnny darter Lopperch Blnckside darter Sleoderhend darter Banded dartcr walleyc Freshwast druos Totals Total m.a Tolal speites 64 3.4 64 0.1 24 1.3 1435 1.5 8 0.4 221 0.2 19 1.0 97 0.1 17 0.9 310 0.3 390 20.6 4762 5.0 1 0.1 80 0.1 47 2.5 13,391 14.1 206 10.9 4714 5.0 7 0.4 7 < 0.1 1 0.1 I8 < 0.1 5 0.3 15 < 0.1 I 0.1 4 <0.1 4 0.2 4 < 0.1 34 1.8 8566 9.0 3 0.2 3756 4.0 331 29.7 337 9.4 395 13.1 401 0.4 21 1.9 58 1.6 45 1.5 1493 1.5 8 0.3 221 0.2 12 1.1 64 1.8 31 1.0 161 0.2 I1 1.0 38 1.1 28 0.9 348 0.4 89 8.0 753 20.9 .479 15.9 5515 5.6 1 < 0.1 s0 0.1 8 0.7 109 3.0 55 1.8 13,500 13.7 83 7.4 803 22.3 289 9.6 5517 5.6 I 0.1 4 0.1 I <0.1 4 <0.1 8 0.7 9 0.2 15 0.5 16 <0.1 1 0.1 10 0.3 2 0.1 28 <0.1 4 0.4 8 0.2 9 0.3 23 < 0.1 I <0.1 4 <0.1 4 0.1 4 <0.1 34 1.1 8566 8.7 3 0.1 3756 3.8 1894 38 37 94.876 I115 28 27 3601 3009 44 43 98.477 species. Centrarchids comprised 41.3 % of the catch (eight species), percids 2.8% (six species), catostomids 1.5% (six species) of all fish collected.

Electrofishing biomass was dominated by carp, which constituted 27.2% of the 94.876 kg collected.

Other species that individually contributed more than 5% of the total biomass included golden redhorse (15.6%), smallmouth bass (14.1%), channel catfish (9.2%), walleye (9.0%), longear sunfish (5.0%) and largemouth bass (5.0%). Rough fish (carp and sucker species) accounted for 48.0% of the total electrofishing biomass collected.

The mean electrofishing catch-per-effort (CPE) for fish collected at all locations combined was 210.4 fish/hr (Table 3-4). This value is higher than the 35-yr average of 178.3 fish/hr (Table 3-5)and well within the range of values reported since 1977. Electrofishing CPE's since 1994 have been higher than those reported during the earlier years of these studies (1977-1993).

Electrofishing CPE has ranged from 35.2 fish/hr in 1982 to 486.3 fish/hr in 2002. In 2012, CPE by location ranged from 119.0 fish/hr at Location IR to 378.0 fish/hr atLocation 4L.A total of 1115 fish representing 27 species and ten families was collected by seine in 2012 (Table 3-3). Small sunfish (Lepomis) species that averaged one gram in weight was the dominant taxa collected, comprising 29.7% (331 individuals) of all fish captured.

The second most abundant species taken was blackstripe topminnow (12.8%), followed by bluntnose minnow (11.9%), bullhead minnow (10.3%), longear sunfish (8.0%), and largemouth bass (7.4%). Total biomass of fish taken by seine was 3.6 kg. Taxa collected by minnow seine that individually comprised greater than 5% of the total catch by weight included largemouth bass (22.3%), longear sunfish (20.9%), sunfish spp. (9.4%), bullhead minnow (8.7%), bluntnose minnow (8.5%), grass pickerel (6.4%), and spotfin shiner (5.6%).Haul seining mean CPE for all locations combined in 2012 was 25.3 fish/seine haul. This value is lower than the 35-yr average of 56.4 fish/seine haul (Table 3-5). CPE's of fish collected by minnow seine have been highly variable on an annual basis ranging from 8.4 fish/seine haul in 1982 to 240.4 fish/seine haul in 1977. Extensive beds of aquatic vegetation in the Kankakee River near Braidwood Station in 2012 made seining extremely difficult.

This contributed to the below average number of fish that were captured and influenced the species composition of the individuals that were captured.

Species such as blackstripe topminnow, mosquitofish, brook 3-8 HDR Engineering, Inc.

TABLE 3-4 FISH CAPTURED BY ELECTROFISHING IN THE KANKAKEE RIVER AND HORSE CREEK Braidwood Station -2012 TAXON Iu 11V 2- 30b 3R' 40b 4Rb 5VJ 5W' 6U 6R' TOTAU %Longnose gar Gizzard shad Grass pickerel Northern pike Carp Redfin shiner Striped shiner Spotfin shiner Sand shiner S Faihead minnow Bluntnose minnow Bullhead minnow Hornyhead chub River carpsucker Spotted sucker Silver redhorse Black redhorse Golden redhorse Northern hog sucker Channel catfish Blackstripe topminnow Brook silverside 2 1 8 2 4 1 3 4 2 1 72 6 6 38 10 47 10 52 7 6 57 1 7 1 I 4 1 6 1 2 3 3 3 1 4 10 13 19 22 14 3 15 5 3 16 2 2 3 12 20 27 1 19 25 3 4 23 27 48 44 40 3 0.2 15 0.8 I 12 0.6 1 0.1 3 11 0.6 3 11 0.6 2 22 1.2 30 203 10.7 5 98 5.2 2 0.1 9 225 11.9 13 272 14.4 1 2 0.1 2 0.1 I 1 0.1 1 0.1 2 0.1 20 1.1 2 0.1 1 7 0.4 13 104 5.5 1 47 2.5 3 2 l 2 I 2 4 L 4 15 3 11 3 7 1 5 12 1 4 7 5 15 14 1 11 8 10 TABLE 3-4 (Continued).

FISH CAPTURED BY ELECTROFISHING IN THE KANKAKEE RIVER AND HORSE CREEK Braidwood Station -2012 TAXON IL' R 2a 3Lb 3Rb 4Lb 4Rb 5L' 5R! 61 6R' TOTAL' %Sunfish spp.Rock bass Green sunfish Orangcspotted sunfish Bluegill Longear sunfish Redear sunfish Sinallmouth bass Largemouth bass t,.a Johnny darter~ Logperch Glackside darter Slenderhcad darter Banded darter Walleye Freshwater drum 3 2 2 8 4 1 7 2 2 2 2 7 17 25! 1 I 1 5 64 3.4 2 24 1.3 8 0.4 2 28 33 35 65 33 12 5 5 3 20 16 10 14 13 I I 1 9 4 1 3 19 1.0 2 2 5 4 3 17 0.9 57 44 7 40 19 29 390 20.6 I 1 0.1 7 4 I 4 3 3 47 2.5 20 II 25 33 18 26 206 10.9 4 I 7 0.4 I 0.1 I 5 0.3 I 0.1 4 0.2 2 34 1.8 3 0.2 1 3 2 I 2 4 5 2 I0 1f01al fish"Nuil T'axa CI'E (fishJ/tr) 269 119 194 123 85 189 159 143 264 193 156 1894 19 19 18 19 15 16 21 16 25 22 21 38 269.0 119.0 194.0 246.0 170.0 378.0 318.0 143.0 264.0 193.0 156.0 210.4 Bitsedan.0 rclrt'amciga 0. 080 gi"raeta'Basec on 9. Oirsc lort.

TABLE 3-5 TOTAL CATCH OF FISH COLLECTED FROM THE KANKAKEE RIVER AND HORSE CREEK Braidwood Station -1977-2012 ELECTROFISHING SEINING YEAR No. CPEO No. CPEb TOTALS 1977 1978 1979 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2417 2329 1391 2050 703 1024 1471 2633 2599 2478 4008 3617 2545 1825 1012 1578 1930 2007 3220 3657 2401 2431 2250 3994 4377 2834 1500 2247 2428 2148 2279 1753 2109 2215 1894 81,354 120.9 116.5 69.6 102.5 35.2 51.2 73.6 131.7 130.0 123.9 200.4 180.9 127.3 216.0 112.4 175.3 214.4 223.0 357.8 430.2 266.8 270.1 250.0 443.8 486.3 323.9 166.7 249.7 269.8 238.7 268.1 194.8 234.3 246.1 210.4 178.3'10,576 1387 3039 1221 369 1166 1455 7278 968 2256 2050 1489 1770 3185 2163 477 1276 1382 5570 3193 2538 942 4200 2185 3548 3316 1373 3118 1619 3525 1591 2352 1689 1432 1115 86,813 240.4 31.5 69.1 27.8 8.4 26.5 33.1 165.4 22.0 51.3 46.6 33.8 40.2 72.4 49.2 10.8 29.0 31.4 126.5 72..6 57.7 21.4 95.5 49.7 80.6 75.4 31.2 70.9 36.8 80.1 36.2 53.5 38.4 32.5 25.3 56.40 12,993 3716 4430 3271 1072 2190 2926 9911 3567 4734 6058 5106 4315 5010 3175 2055 3206 3389 8790 6850 4939 3373 6450 6179 792-5 6150 2873 5365 4047 5673 3870 4105 3798 3647 3009 168,167 TOTALS'Based on 20.0 hrs of electrofishin8 effort from 1977-1990; 8.45 hours5.208333e-4 days <br />0.0125 hours <br />7.440476e-5 weeks <br />1.71225e-5 months <br /> of effort in 1991; 9.00 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> of effort from 1992-1996, 1998-2002, 2004-2007, and 2009-2012; 8.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> of effort in 1997 and 2008; and 8.75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br /> of effort in 2003.hBased on 44 seine hauls.'Based on 456.2 total hours of electrofishing effort.4Based on 1540 total seine hauls.3-11 silverside, and largemouth bass were much more common in the catch during 2012 compared to previous years.An observation made during recent years is that an increasing proportion of the Kankakee River has been populated by large beds of aquatic macrophtyes.

This is noteworthy because the extensive vegetation that has occurred throughout much of the study area during recent years (particularly 2005-2007) has had an effect on sample collections, sampling efficiency, and perhaps species utilization of these areas when compared to previous years (HDR/LMS 2006-2008 and HDR 2009-2011).

However, in 2009, 2010, 2011, and to a lesser extent 2008, the development of aquatic macrophtyes in the Kankakee River was much less than observed in 2005, 2006, and 2007. River flows in 2009-2011 were higher for a longer period of time in the spring and early summer than those observed during 2005-2007.

Development of aquatic macrophtyes was inhibited by the higher, more turbid flows that occurred in 2009, 2010, and 2011. In 2012, the Kankakee River near Braidwood Station exhibited very low flows throughout the summer. As a result, the river was once again populated by extensive beds of aquatic macrophytes that surpassed the levels observed during 2005-2007.

3.3 Historical Comparison Based on sampling efforts conducted during the last three years (2010-2012), the relative abundance of spotfin shiner, bullhead minnow, bluntnose minnow, longear sunfish, and sand shiner, have remained relatively high (Table 3-6). In addition, largemouth bass, blackstripe topminnow, brook silverside, and bluegill abundance seems to be increasing.

Longear sunfish, rock bass, and smallmouth bass have also been commonly collected throughout the course of these studies. All of the species listed in Table 3-6 are moderately common to abundant in this portion of the Kankakee River near Braidwood Station.In 2012, longear sunfish the most abundant species collected (Table 3-6), followed by bullhead minnow, bluntnose minnow, largemouth bass, and spotfin shiner. Cyprinids accounted for four of the top 10 species collected.

Cyprinid and centrarchid species (Appendix Table B-1) have dominated the catches of fish collected in the Kankakee River. The percent contribution of non-cyprinid species to the catch from 1996-2012 has generally decreased because of the large 3-12 HDR Engineering, Inc.

TABLE 3-6 PERCENT COMPOSITION BY TOTAL ABUNDANCE AND RANK OF DOMINANT FISH SPECIES COLLECTED BY ELECTROFISHING AND SEINING FROM ALL STATIONS IN THE KANKAKEE RIVER AND HORSE CREEK Braidwood Station -2010-2012 YEAR SPECIES 2012 2011 2010 Longear sunfish 15.9 (1) 13.6 (2) 16.0 (2)Bullhead minnow 12.9 (2) 9.4 (3) 10.5 (4)Bluntnose minnow 11.9(3) 8.8 (4) 15.7(3)Largemouth bass 9.6 (4) 3.0 (8) 6.3 (5)Spotfin shiner 9.2 (5) 33.3 (1)' 23.0 (1)'Blackstripe topminnow 8.2 (6) 0.7 (15) 0.3 (26)Sand shiner 3.6 (7) 6.7 (5) 5.6 (6)Smallmouth bass 1.8 (8) 1.5(11) 1.4 (13)Brook silverside 1.6(9) 1.1 (14) 0.7(18)Rock bass 1.5 (10) 2.1 (10) 2.3 (7)'Numbers in parenthesis represent species rank.3-13 numbers of cyprinids and/or gizzard shad that have been captured.

With the exception of blackstripe topminnow and brook silverside, the numbers of non-cyprinid species collected from 1996-2012 have generally been similar to those observed during most years.Since 1993, carp has been the dominant species collected in terms of total biomass, except in 1999 when gizzard shad ranked first, in 2004 when smallmouth bass ranked first, and in 2009 when golden redhorse ranked first (Table 3-7 and Appendix Table B-2). Smallmouth bass, carp, and either golden or silver redhorse have all been substantial contributors to the total weight of fish collected (ranking from first to fifth) during the last ten years. As was the case from 2005 through 2012, channel catfish can also contribute heavily to the total biomass collected during some years. Historically, the percent composition by biomass of dominant fish species collected by electrofishing and seining has been relatively consistent during most years. Dominant taxa collected during this period include carp, gizzard shad, channel catfish, smallmouth bass, redhorse species, carpsucker species, buffalo species, and longear sunfish. Walleye was the third most abundant species collected in terms of biomass in 2011 and ranked fifth in 2012. In 2011, most of these fish were collected in one small area at Location 6L. River temperatures were high during the first week of sampling and most of these fish were concentrated in a very small area located directly in front of a tiled underground drainage culvert that was discharging cool water into the Kankakee River. In 2012, the 34 walleye that were collected were more evenly distributed throughout the entire sampling area.A review of historical trends in total catch can be useful for evaluating the stability and long term productivity of a fishery. Catches of fish have exhibited considerable variability from year toyear during the Braidwood Monitoring program (Table 3-5). Since 1994, the catch-per-effort of fish has been higher than most previous years. The decline in the numbers of fish collected from 1991 through 1995 was attributed to a reduction in the sampling program beginning in 1991, which decreased electrofishing effort by more than half (LMS 1996). In addition, the number of fish collected during any given year is influenced by seine collections, which can be highly variable between years. During years that produce large numbers of fish in seine collections (primarily minnows and small sunfish species), total catch is typically high. Conversely, when seine catches are low, the total number of fish collected is also generally low. Electrofishing CPE in 2012 (210.4 fish/hr) was higher than the 35-yr mean of 178.3 fish/hr. Electrofishing CPE in 2012 was 3-14 HDR Engineering, Inc.

TABLE 3-7 PERCENT COMPOSITION BY BIOMASS AND RANK OF DOMINANT FISH SPECIES COLLECTED BY ELECTROFISHING AND SEINING FROM ALL STATIONS IN THE KANKAKEE RIVER AND HORSE CREEK Braidwood Station -2010-2012 YEAR SPECIES 2012 2011 2010 Carp 26.2(1) 28.8(1)" 29.7(1)'Golden redhorse 15.1 (2) 14.7 (2) 4.0 (7)Smallmouth bass 13.7 (3) 6.1(6) 8.7 (3)Channel catfish 8.9 (4) 7.0 (5) 18.3 (2)Walleye 8.7(5) 8.2(3) 1.9(11)Largemouth bass 5.6(6) 2.1(12) 6.0(4)Longear sunfish 5.6 (7) 3.5 (8) 3.6 (9)Freshwater drum 3.8 (8) 4.7 (7) 5.5 (5)River carpsucker 2.3 (9) 1.3 (15) 3.7 (8)Rock bass 1.5(10) 3.5(9) 2.6 (10)'Numbers in parenthesis represent species rank.3-15 within the range of values reported since 1995 and higher than all but two of the values reported during the 1977 through the 1994 sampling period. The 2012 seining CPE of 25.3 fish/haul was less than half of the 35-yr mean of 56.4 fish/haul.

Seining CPE's have varied markedly during the 35 years of sampling, ranging from 8.4 fish/haul in 1982 to 240.4 fish/haul in 1977.3.4 Length Frequency Distributions.

Length-frequency distributions were used to estimate age groups of four dominant species (rock bass, longear sunfish, smallmouth bass, and largemouth bass) collected from the Kankakee River.Age groups can be separated and identified as peaks in a standard length-frequency histogram; however, small sample size, differential growth between sexes of the same species, and/or the lack of well-defined breaks in length categories of older fish, hampers accurate interpretation of older age-classes.

Gizzard shad have been included in the length-frequency histograms during years in which adequate numbers of individuals have been collected.

However, only 17 fish of this species were collected in 2012. Therefore, a length-frequency histogram was not developed for this species during 2012. All of the gizzard shad collected during the current study were either young-of-year or Age I fish ranging from 61 to 157 mm in total length (Smith, 1979).Forty-five fish measuring from 30 to 220 mm in total length are included in the length-frequency analysis of rock bass (Figure 3-1). Based on this information, at least four or five age classes of fish were collected.

Twenty-seven (60.0%) Age 0 rock bass measuring from 30 to 66 mm in TL were collected in 2012. A second grouping of eight (17.8%) Age I fish ranging from 80 to 110 mm, a third grouping of seven (15.6%) Age 3 fish ranging from 150 to 180 mm, and three additional fish larger than 190 mm were also collected.

The three fish larger than 190 mm in total length were most likely Age 4 fish. Based on the length-frequency histogram, Age 2 rock bass may not have been collected during the 2012 August sampling period. Recruitment for this species in 2012 appeared to be moderate based on these data.The length-frequency of 444 longear sunfish measuring from 22 to 157 mm is presented in Figure 3-2. Sixty of these fish measured from 20 to 60 mm (13.5%) and were most likely Age 0 fish. A 3-16 HDR Engineering, Inc.

CL 10-0 Z 5--0-TOTAL LENGTH (mm)FIGURE 3-1 LENGTH-FREQUENCY DISTRIBUTION FOR ROCK BASS COLLECTED FROM THE KANKAKEE RIVER AND HORSE CREEK, AUGUST 2012.

120 100 C.0 Lu w z 80 60 40 20 0 TOTAL LENGTH (mm)FIGURE 3-2. LENGTH-FREQUENCY DISTRIBUTION FOR LONGEAR SUNFISH COLLECTED FROM THE KANKAKEE RIVER AND HORSE CREEK, AUGUST 2012.

few of the larger individuals could have possibly been small Age 1 fish. Three hundred sixty-six (82.4%) of the 444 fish that were measured ranged from 60 to 110 mm in total length (primarily Age 1 and Age 2), while only 17 fish (3.8%) greater than or equal to 110 mrn in total length were collected.

The majority of these fish were most likely Age 3, but a few of the smaller individuals may have been Age 2, while the largest individuals could possibly have been Age 4.Recruitment of longear sunfish appeared to be moderately weak in 2012 based upon the number of Age 0 fish (< 60 mrm) observed in the length frequency histogram.

Similar results were noted for this species from 2005-2011 when recruitment was also reported be relatively weak based on information collected during electrofishing and seining sampling efforts. However, during 2005 (HDRILMS 2006) and 2007 (HDRILMS 2008) relatively large numbers (1666 and 1081 fish, respectively) of young-of-year fish measuring less than 50 mm in total length were identified only as sunfish species. Because species assignment to these very small fish is likely to contribute an unknown margin of error, only fish larger than 40 or 50 mm in total length were identified to species. Based on historical data, a large portion of these fish were longear sunfish. Longear sunfish has been the most abundant sunfish species taken during most previous years of sampling.If this assumption is correct, recruitment of this species in 2005 and 2007 would have been strong. The large contribution of Age 1 longear sunfish to the catch in 2006 and 2008 appears to validate the assumption that the majority of these unidentified Age 0 sunfish were indeed longear sunfish. Similar results have been noted during almost all previous years of this long-term data base. Recruitment of longear sunfish has been classified as strong during most years of these studies. This is not surprising because longear sunfish is one of the most abundant species found in this section of the Kankakee River. However, only two small young-of-year fish were classified as sunfish species in 2009, only 16 were classified as sunfish species in 2010 and only five were classified as sunfish species in 2011. However, Age 1 fish were a major component of the catch in 2010 and 2011, which suggest that the low numbers of YOY fish captured in 2009 and 2010 may have been attributed to gear bias, unfavorable sampling conditions, or some other unknown factor. In 2012, 395 (13.1%) of 3009 fish collected by electrofishing and minnow seine were identified as Leponis spp. Most likely, a large percentage of these fish were longear sunfish.3-19 HDR Engineering, Inc.

The vigorous rooted aquatic vegetation that occurred within the Kankakee River from 2005-2007 and again in 2012 was conducive to the survival of longear sunfish and other forage species because it provided increased areas of refuge from predation.

Weed growth was much less extensive during 2008 through 2011, which may explain the decline in young-of-year sunfish species captured during recent years. Only three fish (0.7%) larger than 130 mm were collected in 2011 and 2012. Becker (1983) states that relatively few longear sunfish live to be older than Age 4. This may account for the low occurrence of longear sunfish greater than 150 mm in total length that have been collected during these studies.Fifty-five smallmouth bass were collected during 2012. Specimens ranged in length from 56 to 462 mm (Figure 3-3). Several age classes of fish were represented in the catch, with peaks in the length frequency histogram occurring at 80 nmm (Age 0), from 140 to 200 mm (Age 1), and at 390 nmm (Age 4). Nine Age 2 or Age 3 fish were collected that ranged in length from 270 to 380 mm in total length. Young-of-year smallmouth bass were strong contributors to the catch from 1994-1999, 2001-2004, and again in 2007, 2008, and 2009. However, only a small portion of the smallmouth bass collected in 2000, 2005, and 2010 were Age 0 (LMS 2001 and HDR/LMS 2006, HDR 2011). In 2006, Age 0 smallmouth bass made a moderate contribution to the total catch (HDR/LMS 2007), but the Age 0 fish that were collected were smaller than those captured during most previous years. As a result, these fish may have incurred higher mortality than would have been expected if they had been larger and in better condition to survive predation and over-wintering mortality.

In 2007, only 15 (4.5%) Age 1 smallmouth bass measuring from 120 to 200 mm were collected, suggesting that the recruitment and survival of the 2006 year class in this portion of the Kankakee River was indeed weak in 2006. Recruitment of smallmouth bass in 2011 appeared to be moderately strong based upon the 20 (35.7%) fish that were collected and measured from 40 to 80 mm in total length. Similar results were observed in 2012 when 26 (47.3%) of the 55 fish measured less than 110 mm.Three (5.5%) fish larger than 400 mm were collected in 2012. The largest of the three fish measured 462 mm in total length and was most likely Age 5 or older. Although in 2012, peaks in the length-frequency histogram of smallmouth bass > 110 mm in total length is difficult to distinguish because of the small sample size (29 specimens), the 2007-2012 year classes all appear to be represented in the catch.3-20 HDR Engineering, Inc.

Smallmouth bass 6- N=55 Lu N" .4-z 2- ;TOTAL LENGTH (mm)FIGURE 3-3. LENGTH-FREQUENCY DISTRIBUTION OF SMALLMOUTH BASS COLLECTED FROM THE KANKAKEE RIVER AND HORSE CREEK, AUGUST 2012.

Two hundred eighty-nine largemouth bass, measuring from 64 to 282 mm in total length, were collected in 2012 (Figure 3-4). Based upon the fish collected during 2012, at least four age classes of largemouth bass were included in the catch. Two hundred and sixty-nine (93.1 %)largemouth bass less than 130 mm in total length were captured in 2012, while 19 (6.6%) fish from 150 to 250 mm were collected.

The remaining individual measured 282 mm. During most years, either Age 0 and/or Age 1 largemouth bass have dominated the catch, while few fish older than Age 2 have been collected.

Notable in the length frequency histogram for 2010 and 2012 is the absence of any fish measuring greater then 300 mm. This indicates that few, if any, largemouth bass from the 2007 (Age 5), 2008 (Age 4), or 2009 (Age 3) year-classes were collected.

Recruitment of largemouth bass in the Kankakee River near Braidwood Station appeared to be strong in 2011 and 2012 based on the data collected by electrofishing and seining.In addition to those five species, 34 walleye measuring from 136 to 587 mm in total length were collected in 2012. Twenty-seven (79.4%) of these fish measured from 136 to 197 mm and were either Age 0 or Age 1 fish, while one fish measured 368 mm and was most likely either Age 2 or Age 3. Four fish (11.8%) measured from 411 to 481 mm (Age 3 or Age 4), while the remaining two individuals were likely either Age 4 or Age 5 fish that measured 569 and 587 mm, respectively.

Based on the data collected during, at least four age classes of walleye were included among the 34 fish captured in 2012.3.5 COMMUNITY CHARACTERISTICS 3.5.1 Diversity Mean diversity indices were calculated for each of the 11 individual electrofishing and seining locations in 2012. Electrofishing diversity values ranged from 2.62 at Location 3L to 3.83 at Location 5R (Table 3-8). The average diversity index for all locations in 2012 was 3.24. This value is higher than most years reported since 1977. The mean diversity index has ranged from 2.36 in 1982 to 3.74 in 2005. It should be noted that the average diversity indices were not calculated using weighted means, but are simply means of means. They should, therefore, be viewed with some degree of caution.3-22 HDR Engineering, Inc.

80-70-60-a.0 50-C," ui N u 40-30-z 20-10-/____ ____ Largemouth bass __N 289 h,- -*All. ~g -' -'OrEMOwoNgE w~I I I I I I I I I I I I I I I I I I I I I I I I I I TOTAL LENGTH (mm)FIGURE 3-4. LENGTH-FREQUENCY DISTRIBUTION OF LARGEMOUTH BASS COLLECTED FROM THE KANKAKEE RIVER AND HORSE CREEK, AUGUST 2012.

TABLE 3-8 MEAN DIVERSITY INDICES FOR THE CATCH OF FISH AT EACH LOCATION COLLECTED BY ELECTROFISHING Braidwood Station -1977-2012 YEAR I L IR 2 3L 3R 4L 4R 5L 5R 6L 6R MEAN ALL LOCATIONS 1977 3.31 2.89 3.15 ----3.33 3.31 3.22 2.94 3.16 1978 3.12 2.51 3.02 2.68 2.56 2.91 2.75 2.92 3.73 3.09 2.42 2.88 1979 3.04 2.83 3.23 2.75 2.72 2.55 2.65 3.29 3.05 3.07 2.94 2.92 1981 3.16 3.20 3.29 3.11 2.84 2.87 2.90 3.53 3.38 3.01 2.86 3.10 1982 2.65 2.31 3.24 2.15 2.26 2.1 1.93 2.73 1.17 3.16 2.23 2.36 1983 2.72 2.91 3.31 2.63 2.28 2.13 1.66 3.04 2.46 2.79 2.42 2.58 41 1984 2.55 2.82 2.93 2.35 2.42 2.38 2.53 2.90 2.40 2.32 2.68 2.57 1985 2.66 2.89 3.61 2.44 3.56 2.23 2.77 3.04 3.33 2.64 3.10 2.93 1986 3.09 3.29 3.05 2.87 3.17 3.04 2.84 3.26 3.19 2.88 3.18 3.08 1987 2.93 2.97 3.45 2.74 2.34 2.75 2.71 3.39 2.51 2.97 2.50 2.84 1988 3.22 2.90 3.52 2.14 3.04 2.86 2.43 2.59 3.68 2.60 2.86 2.89 1989 3.05 2.97 2.92 2.61 3.15 2.60 3.29 3.86 3.47 2.80 3.06 3.07 1990 3.36 3.09 2.88 2.69 2.82 2.73 3.09 3.40 2.03 3.40 2.83 2.94 1991 2.76 3.23 1.79 2.58 2.63 2.87 3.01 2.64 2.32 2.53 2.74 , 2.65 1992 2.97 2.58 2.14 2.22 2.33 2.82 2.97 3.60 3.13 2.61 3.20 2.78 1993 3.33 2.68 2.71 2.90 2.22 2.86 2.93 3.37 3.37 2.52 2.11 2.82 1994 3.05 2.81 4.02 2.52 2.98 2.50 3.20 3.12 3.51 2.66 2.18 2.96 1995 3.57 3.36 3.12 3.28 2.83 3.22 3.28 3.58 2.57 3.59 3.19 3.24 1996 3.44 3.62 3.24 2.80 2.73 2.80 3.60 3.40 3.11 3.37 3.28 3.22 1997 2.19 3.84 3.17 2.38 3.14 3.31 3.61 2.05 1.50 1.38 2.65 2.66 TABLE 3-8 (Continued)

MEAN DIVERSITY INDICES FOR THE CATCH OF FISH AT EACH LOCATION COLLECTED BY ELECTROFISHING Braidwood Station -1977-2012 YEAR I L I R 2 3L 3R 4L 4R 5L 5R 6L 6R MEAN ALL LOCATIONS 1998 3.76 3.34 2.07 3.33 3.36 2.50 1.68 3.06 2.70 2.61 3.18 2.87 1999 2.85 3.50 3.28 3.33 3.63 3.23 3.45 2.84 2.82 3.35 2.96 3.20 2000 3.14 3.23 3.22 2.69 3.11 2.76 3.17 3.44 2.66 3.50 3.15 3.10 2001 2.91 3.56 3.47 3.05 3.00 3.04 3.31 3.17 3.64 3.55 3.02 3.25 2002 3.64 3.74 3.12 3.66 3.07 3.48 3.23 3.57 3.90 3.56 3.15 3.47 2003 3.43 3.62 3.38 2.50 3.10 2.91 2.76 3.37 3.14 3.04 2.69 3.08 2004 3.72 3.15 3.55 2.55 3.08 2.31 3.21 3.51 3.84 3.09 3.25 3.21 2005 3.88 3.92 4.13 3.99 3.56 3.78 3.12 3.76 3.52 4.15 3.31 3.74 2006 3.56 2.53 3.40 2.29 2.57 2.68 3.65 2.97 3.33 3.40 2.92 3.03 2007 3.73 3.12 3.44 3.92 3.65 3.78 3.77 4.01 3.35 4.03 3.89 3.71 2008 3.42 2.53 3.86 2.61 3.45 3.25 3.12 3.60 3.87 3.13 3.69 3.32 2009 2.60 2.88 3.38 3.57 3.63 3.20 3.13 2.53 3.45 3.27 3.08 3.16 2010 3.46 3.06 3.35 2.66 3.51 3.13 3.38 2.33 3.53 2.90 2.90 3.11 2011 3.35 3.14 3.48 2.94 3.26 3.27 2.89 2.44 3.42 3.72 3.08 3.18 2012 3.30 3.41 2.87 2.62 2.92 3.25 3.28 3.04 3.83 3.57 3.52 3.24 Mean diversity indices for each location sampled by seining ranged from 2.17 at Location 5L to 3.18 at Location 2 (Table 3-9). Diversity indices in the Kankakee River appear to reflect habitat quality and the flow characteristics at each location during the time of collection, rather than any affect associated with the Braidwood Station intake or blowdown.

Average seining diversity indices (all locations) by year has ranged from 1.08 in 1983 to 2.97 in 2001. The average seining diversity index of 2.77 in 2012 was the sixth highest reported since 1977 and well within the range of values reported during the 35 years of this long-term sampling program.3.5.2 Anomalies In 2012, nine (0.30%) of the 3009 fish collected from the Kankakee River and Horse Creek exhibited some form of external anomaly (Table 3-10). In total, four species were noted to exhibit at least one type of external anomaly. Six of the 9 fish were golden redhorse, while the remaining three individuals included a largemouth bass, a rock bass, and a northern hog sucker.One of the six golden redhorse exhibited lesions and eroded fins. During previous studies (1991-2011), fish with external anomalies have comprised from 0.1% of the fish examined in 2001 to 4.9% of the fish examined in 1993. The majority of fish during those years were afflicted with eroded fins, parasitic leeches, cysts, or anchor worm. Parasites, including leeches, black spot, anchor worm, fish lice, and cysts, were not noted on any of the fish examined in 2011 or 2012.DELT (D2eformities, Eroded fins, Lesions, or Tumors) anomalies were noted on all nine of the fish with external anomalies.

Lesions occurred on seven individuals, eroded fins occurred on two individuals, and a malformation (crooked spine) occurred on one individual.

Tumors were not observed on any of the fish examined in 2012. The number of fish observed with external anomalies by location were all relatively low. The greatest number of fish with anomalies by sampling area occurred at Location 3L where two (0.99%) of the 202 fish examined exhibited some form of DELT anomaly. No anomalies were noted at five of the 11 sampling locations examined during August 2012 (Table 3-10). The low incidence of individuals with DELT anomalies noted in 2012 indicates that the resident fish assemblage in this portion of the Kankakee River was in good condition (as defined by Karr, 1981) during the August sampling period.3-26 HDR Engineering, Inc.

TABLE 3-9 MEAN DIVERSITY INDICES FOR THE CATCH OF FISH AT EACH LOCATION COLLECTED BY SEINING Braidwood Station -1977-2012 YEAR IL IR 2 3L 3R 4L 4R 5L 5R 6L 6R MEAN ALL LOCATIONS 1977 1978 1979 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 2.52 2.21 2.71 1.56 2.15 1.47 2.00 1.85 1.80 1.95 2.25 1.82 1.51 1.10 1.63 1.19 1.11 0.76 1.29 1.05 1.11 2.17 2.69 2.80 1.53 2.24 1.26 1.83 2.34 2.62 1.23 2.30 1.78 2.20 1.64 1.35 1.54 1.28 1.06 1.87 1.90 1.76 1.80 1.67 0.99 1.08 1.37 0.00 2.71 3.31 3.00 3.29 2.30 2.04 2.78 2.42 2.52 3.02 2.00 2.76 2.81 1.45 1.81 2.14 0.91 0.46 1.83 1.84 1.75 1.72 1.87 1.89 1.84 2.02 2.38 0.52 2.47 3.17 2.43 2.90 2.16 2.89 2.15 2.55 2.66 2.60 2.50 2.19 1.39 1.69 2.49 2.24 1.29 2.33 1.31 2.42 1.73 2.81 2.26 1.29 2.33 0.78 1.73 1.17 2.72 2.88 1.67 2.61 0.00 0.72 0.82 2.39 2.30 0.80 0.81 0.23 0.95 0.82 2.26 2.08 0.47 1.55 0.71 1.07 0.22 1.99 1.86 0.84 1.32 2.05 2.42 2.53 2.19 3.07 1.32 2.99 0.87 1.44 1.46 2.49 1.74 2.34 1.74 1.35 1.67 2.25 2.24 2.27 1.45 1.52 2.00 1.81 1.40 2.64 2.64 0.96 1.90 1.86 2.03 2.16 2.25 2.28 2.05 2.48 0.51 1.22 0.51 2.80 3.22 2.48 2.03 2.13 2.39 2.35 2.63 2.28 2.29 2.03 1.15 2.84 1.53 3.46 2.59 1.51 0.93 0.73 1.61 0.66 1.58 2.73 1.26 1.41 3.08 1.47 2.78 2.86 3.00 2.94 2.61 2.91 3.16 2.02 3.01 2.94 3.02 2.83 2.97 2.52 2.59 3.49 2.51 2.62 2.78 2.69 2.98 2.38 1.53 2.49 3.21 2.92 2.52 1.84 1.96 1.97 1.18 1.08 1.21 2.37 1.71 1.93 1.87 2.02 1.68 2.15 1.90 1.18 2.75 2.79 2.69 2.63 TABLE 3-9 (Continued)

MEAN DIVERSITY INDICES FOR THE CATCH OF FISH AT EACH LOCATION COLLECTED BY SEINING Braidwood Station -1977-2012 YEAR IL IR 2 3L 3R 4L 4R 5L SR 6L 6R MEAN ALL LOCATIONS 1998 3.23 2.60 1.50 2.00 3.11 2.34 1.04 2.21 1.83 2.25 1.77 2.17 1999 2.16 1.92 2.15 1.81 1.14 2.87 1.97 2.22 2.60 2.32 2.55 2.16 2000 2.25 1.27 1.21 2.45 0.56 2.13 1.97 2.10 2.45 1.59 2.29 1.84 2001 3.09 2.63 3.02 2.76 2.62 3.09 3.32 2.95 3.05 3.39 2.80 2.97 2002 2.93 2.80 2.46 3.02 2.64 3.39 2.84 3.04 3.31 2.76 2.80 2.91 2003 1.29 2.29 2.44 2.68 1.67 2.35 2.99 2.84 3.09 2.79 2.61 2.46 2004 3.39 2.77 3.22 2.94 1.48 2.82 2.78 2.73 3.01 3.15 2.40 2.79 2005 2.18 2.31 2.90 2.50 3.15 2.76 2.23 2.75 1.85 2.51 1.53 2.43 2006 1.91 1.56 2.52 3.08 2.10 2.73 2.66 2.58 2.09 2.52 2.71 2.40 2007 3.44 3.16 2.69 2.56 3.23 3.10 2.24 3.05 2.52 2.97 3.30 2.93 2008 1.46 3.07 2.76 3.04 2.09 2.93 2.74 2.84 3.40 2.88 2.99 2.74 2009 1.65 1.92 2.04 3.02 1.96 1.53 2.23 1.93 2.21 2.38 2.65 2.14 2010 2.02 2.26 1.99 3.23 2.31 2.48 2.87 1.44 3.21 2.92 2.69 2.49 2011 1.51 2.49 2.03 2.37 1.91 2.33 2.57 1.57 2.44 1.27 1.64 2.01 2012 2.80 2.88 3.18 2.95 2.47 2.66 2.73 2.17 2.80 2.99 2.87 2.77 TABLE 3-10 NUMBER OF ANOMALIES ASSOCIATED WITH FISH COLLECTED AT EACH SAMPLING LOCATION ON THE KANKAKEE RIVER AND HORSE CREEK Braidwood Station -2012 SAMPLING LOCATION ANOMALY IL IR 2 3L 3R 4L 4R 5L 5R 6L 6R TOTAL Eroded fin I I 2 Lesions I 1 2 2 7 Deform ities I Total Anomalies 2 0 2 2 0 I 2 0 I 0 0 10 No. of Fish with Anomalies 2 0 1 2 0 I 2 0 I 0 0 9 Total Fish Collected 366 187 283 202 161 297 283 232 409 301 288 3009 Percent' (0.55) (0.00) (0.35) (0.99) (0.00) (0.34) (0.71) (0.00) (0.24) (0.00) (0.00) (0.30)1 Percent of total fish with external anomalies by location.

3.5.3 Relative Weight Inherent in the development of the W, equations used to calculate W, is the objective of modeling the growth form of a species for fish in better-than-average condition.

A mean W, value close to 100 (90-110) over a range of size groups may reflect optimal health and utilization of food resources for a given population (Anderson and Gutrueter 1983). When relative weight values are considerably less than 100, problems may exist in food availability and/or feeding relationships.

A total of 112 fish (12 species) that met the minimum length criteria of the Wr equations was collected (Table 3-11 and Appendix Table C-i). Of the 12 species collected, only four were represented by more than 10 individuals.

Relative weights by species, as well as by individuals within a species, were highly variable.

Mean relative weight by species ranged from 92.0 for northern pick to 123.7 for redear sunfish. Several factors can influence W,, including sample size, fish size, sex, food availability, competition, and spawning condition.

Each of the 12 species examined appeared to reflect optimal health and utilization of food resources based upon the relative weights of fish that were collected during the August 2012 Braidwood Fish Monitoring Program. Five of the 12 species examined exhibited a W, score from 92.0 to 98.6, while the remaining seven species all exhibited a W, score of greater than 100.0 (rock bass, bluegill, green sunfish, redear sunfish, smallmouth bass, largemouth bass, and freshwater drum).3.6 Physicochemical Data Water quality data recorded in conjunction with fish sampling was measured at each location prior to every sample collection (Appendix Tables A-i to A-4). During August 2012, water temperature ranged from 23.3 °C at Location 3L on August 22 to 29.5 *C at Location 5L on August 8. Water temperatures were warmer during the first sampling period due to an extended period of unusually warm air temperatures in July and early August. Dissolved oxygen levels were also slightly higher during the second sampling period and ranged from 9.8 to 11.5 ppm, pH from 7.6 to 8.4, and conductivity from 593 to 744 JnLmhos/cm.

The physicochemical data collected in 2012 was similar to values reported during previous years of these studies. Each of 3-30 HDR Engineering, Inc.

TABLE 3-11 MEAN RELATIVE WEIGHTS OF FISH COLLECTED FROM THE KANKAKE RIVER AND HORSE CREEK NEAR BRAIDWOOD STATION -AUGUST 2012 SPECIES No. (Wr) RANGE Carp 7 96.5 84.9 -113.3 River carpsucker 2 96.4 83.8 -109.0 Channel catfish 4 98.6 85.4 -107.6 Northern pike 1 92.0 90.2 Rock bass 12 115.2 84.2- 131.2 Bluegill 9 119.3 96.5 -132.7 Green sunfish 3 101.6 83.4- 126.6 Redear sunfish 1 123.7 123.7 Smallmouth bass 19 106.2 83.5- 122.1 Largemouth bass 23 115.3 104.0 -171.7 Walleye 28 92.8 81.1- 138.6 Freshwater drum 3 115.6 114.6 -117.2 3-31 the measured water quality parameters observed were well within the range of values capable of supporting a healthy fishery.Since 1981, mean monthly discharge for the Kankakee River (Site Number 05527500) has been calculated from flow data recorded by the United States Geological Survey (USGS) near Wilmington, Illinois (Figure 3-5 and Appendix Table A-5). Based on preliminary data, the mean monthly river flows for January through October 2012 were all substantially below the mean monthly flows for all years combined (January 1981- September 2012). In fact, river flows in April 2012 were the lowest reported since 1981. These data are preliminary, but the river flows in the Kankakee River were obviously well below average during the first nine months of the year. October through December 2012 preliminary river flows were not available at the time this report was prepared.Mean annual river flow in the Kankakee River near Braidwood Station from 1981 through 2011 has ranged from 3095 cfs in 2000 to 11,570 cfs in 1993. The mean annual river flows since 1981 (excluding 2012 data) has averaged 6031 cfs (Appendix Table A-5). Highest mean monthly river flows have generally occurred in March and April, while the lowest flows have occurred during the months of August through October. River flows in 2012 ranged from 700 cfs in July to 6985 cfs in May. River flows in the Kankakee River during 2012 can be characterized as being extremely low throughout the first nine months of the year.River flows during the first sampling period on August 8 (703 cfs) and August 9 (775 cfs) were substantially below the 32-yr mean of 2431 cfs (Appendix Table A-5). During the second sampling period on August 21 (775 cfs) and August 22 (775 cfs) flows were similar to those observed during the first week of sampling when the flows were extremely low. River flows were the highest during the first few days of August and continued to decline throughout the remainder of the month. River flows in the Kankakee River can be highly variable over a relatively short period of time.3-32 H-DR Engineering, Inc.

35000 30000 25000 220000 wu a15000 10000 5000 0 Minimum E _\maximum AMean-*--2012...........JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC MONTH FIGURE 3-5. MONTHLY MEAN, MAXIMUM AND MINIMUM KANKAKEE RIVER FLOWS RECORDED BY THE USGS GAUGING STATION NEAR WILMINGTON, ILLINOIS, JANUARY 1981 THROUGH SEPTEMBER 2012.

4.0

SUMMARY

1. Forty-three species of fish representing 12 families were collected from the Kankakee River and Horse Creek during the Braidwood Station Aquatic Monitoring Program in August 2012. Sampling was hindered by the excessive growth of rooted and floating aquatic plants that were fostered by low flows and warm temperatures.
2. No threatened or endangered species were collected during the 2012 fisheries surveys in the Kankakee River near Braidwood Station. Neither pallid shiner nor river redhorse were collected in 2012. Pallid shiner is currently listed as endangered, while the river redhorse is currently listed as threatened in Illinois.

Both of these species have been collected during several of the previous years of these studies.3. A total of 3009 fish weighing 98.4 kg was collected during electrofishing and seining efforts in 2012.4. Longear sunfish (15.9%), sunfish spp. (13.1%), bullhead minnow (12.9%), bluntnose minnow (11.9%), largemouth bass (9.6%), spotfin shiner (9.2%), and blackstripe topminnow (8.2%) were the most abundant species collected in 2012.5. Carp (26.2%), golden redhorse (15.1%), smallmouth bass (13.7%), channel catfish (8.9%), walleye (8.7%), largemouth bass (5.0%), and longear sunfish (5.0%) comprised 82.6 % of the total biomass (98.4 kg) collected during electrofishing and seining efforts in 2012.6. Electrofishing captured 1894 fish representing 37 species. Longear sunfish was the most abundant species observed, accounting for 20.6% of all fish collected, followed by bullhead minnow (14.4%), bluntnose minnow (11.9%), largemouth bass (10.9%), spotfin shiner (10.7%), blackstripe topminnow (5.5%), and sand shiner (5.2%). Electrofishing biomass was dominated by carp, which constituted 27.2% of the 94.9 kg collected.

Carp and sucker species accounted for 48.0% of the total electrofishing biomass.Electrofishing CPE was 210.4 fish/hr in 2012, which is higher than the 35-yr average of 178.3 fish/hr.7. Twenty-seven species were among the 1115 fish collected in seine samples. Small unidentified sunfish species that average approximately one gram dominated the catch comprising (29.7%) of all fish collected, followed by blackstripe topininnow (12.8%), bluntnose minnow (11.9%), bullhead minnow (10.3%), longear sunfish (8.0%), and largemouth bass (7.4%). Seining biomass (3.6 kg) was dominated by largemouth bass (22.3%), longear sunfish (20.9%), and unidentified sunfish spp. (9.4%), bullhead minnow (8.7%), bluntnose minnow (8.5%), grass pickerel (6.4%), and spotfin shiner (5.6%). No other species individually comprised more than 5% of the total biomass collected.

Seining CPE in 2012 (25.3 fish/haul) was less than the 35-yr mean of 56.4 fish/haul.

4-1 HDR Engineering, Inc.

8. The mean diversity index of fish collected by electrofishing for all locations combined in 2011 was 3.24, which is slightly higher than most years reported since 1977. The mean diversity index for electrofishing has ranged from 2.36 in 1982 to 3.74 in 2005. The mean diversity index of fish collected by seining in 2012 was 2.77, which is the sixth highest reported since 1977. The mean seining diversity index has ranged from 1.08 in 1983 to 2.97 in 2001.9. Only nine (0.30%) of the 3009 fish collected in 2012 exhibited some form of external anomaly. Lesions (70.0%), eroded fins (20.0%), and deformities (10.0%) accounted for all of the 10 anomalies observed.

Tumors, fish lice, black spot, leeches, anchor worm, and cysts were not observed in 2012. One of the nine fish afflicted with anomalies exhibited two anomalies.

Six of the nine fish with anomalies were golden redhorse, while the remaining three individuals included a largemouth bass, a rock bass, and a northern hog sucker. The largest percentage (0.99%) of fish collected with anomalies was observed at Location 3L. No anomalies were observed at five of the 11 sampling locations examined.

The very low incidence of DELT (Deformities, Eroded fins, Lesions, and Tumors) anomalies observed in 2012, continues to indicate that the fish assemblage in this portion of the Kankakee River is in good condition during the August sampling period.10. Mean relative weights (Wr) of fish near the Braidwood Station ranged from 92.0 for northern pike (one individual) to 123.7 for redear sunfish (one individual).

With the exception of a few individuals, fish collected in the Kankakee River during the August sampling period were in good to excellent condition.

Seven species (rock bass, bluegill, green sunfish, redear sunfish, smallmouth bass, largemouth bass, and freshwater drum)exhibited mean relative weight scores of more than 100.11. Based on length frequency data collected by electrofishing and seining sampling efforts recruitment of rock bass was moderately weak and longear sunfish recruitment appeared to be moderate in this portion of the Kankakee River during August 2012. Smallmouth bass recruitmient appeared to moderately strong and largemouth bass recruitment was strong based on these same data. Recruitment analysis of longear sunfish based on data collected during the course of these studies can be unreliable because of the number of very small young-of-year sunfish that may be identified only as Lepomis species. Three hundred ninety-five individuals that weighed approximately one gram were identified as only Lepomis species in 2012. A large percentage of these fish were most likely longear sunfish.4-2 HDR Engineering, Inc.

5.0 REFERENCES

CITED Anderson, R.O. and S.J. Gutreuter.

1983. Length, Weight, and Associated Structural Indices. In (Nielsen L.A. and D.L. Johnson, eds.) Fisheries Techniques.

Southern Printing Company, Inc., Blacksburg, Virginia.

pp. 283-300.Barker, B., J.B. Carlisle, and R. Nyberg. 1967. Kankakee River Basin Study, a Comprehensive Plan for Water Resource Development.

Bureau of Water Resources, Department of Public Works, Springfield, Illinois.Becker, G.C. 1983. Fishes of Wisconsin.

The University of Wisconsin Press. Madison, Wisconsin.

Brigham, W.U., L. Suloway, J.M. Kasprowicz, and M.J. Wetzel. 1984. Survey of Kankakee River Mussels (Mollusca:

Unionidae) at Site of Proposed Sewer Project, City of Kankakee, Kankakee County, Illinois.

Technical Report, Faunistics and Insect Identification, Illinois Natural History Survey, Champaign.

Brown, M.L. and Murphy, B.R. 1991. Standard Weights (W 3) for Striped Bass, White Bass, and Hybrid Striped Bass. N. Am. J. Fish. Manage. 11:451-467.

Environmental Science & Engineering.

1993. Kankakee River Fish Monitoring Program Braidwood Station 1993. Report to Commonwealth Edison Company, Chicago, Illinois.Gablehouse, D.W., Jr. 1984a. A Length-Categorization System to Assess Fish Stocks. N. Am. J.Fish. Manage. 4:273-285.

Graham, R.I., R.W. Larimore, and W.F. Dimond. 1984. Recreational Fishing in the Kankakee River, Illinois.

Illinois Natural History Survey Biological Note 120.HDR Engineering, Inc. 2009. Braidwood Station Kankakee River Fish Monitoring Program, 2008.Report to Exelon Nuclear, Chicago, Illinois.HDR Engineering, Inc. 2010. Braidwood Station Kankakee River Fish Monitoring Program, 2009.Report to Exelon Nuclear, Chicago, Illinois.HDR Engineering, Inc. 2011. Braidwood Station Kankakee River Fish Monitoring Program, 2010.Report to Exelon Nuclear, Chicago, Illinois.HDR Engineering, Inc. 2012. Braidwood Station Kankakee River Fish Monitoring Program, 2011.Report to Exelon Nuclear, Chicago, Illinois.HDR/LMS 2006. Braidwood Station Kankakee River Fish Monitoring Program, 2005. Report to Exelon Nuclear, Chicago, Illinois.HDR/LMS 2007. Braidwood Station Kankakee River Fish Monitoring Program, 2006. Report to Exelon Nuclear, Chicago, Illinois.5-1 HDR Engineering, Inc.

HDR/LMS 2008. Braidwood Station Kankakee River Fish Monitoring Program, 2007. Report to Exelon Nuclear, Chicago, Illinois.Healy, R.W. 1979. River Mileage and Drainage Areas for Illinois Streams Vol. 2, Illinois River Basin. U.S. Geological Survey Water-Resources Investigations79-111. Champaign, Illinois.Illinois Endangered Species Protection Board. 2009. 2009 Checklist of Endangered and Threatened Animals and Plants of Illinois.

Illinois Department of Natural Resources, Springfield, Illinois 22 pp.Karr, J.R. 1981. Assessment of Biotic Integrity Using Fish Communities.

Fisheries 6:21-27.Kwak, T.J. 1991. Ecological Characteristics of a Northern Population of the Pallid shiner.Transactions of the American Fisheries Society 120:106-115.

Lawler, Matusky and Skelly Engineers (LMS). 1992. Braidwood Station Kankakee River Fish Monitoring Program, 1991. Riport to Commonwealth Edison Company, Chicago, Illinois.Lawler, Matusky and Skelly Engineers (LMS). 1996. Braidwood Station Kankakee River Fish Monitoring Program, 1995. Report to Commonwealth Edison Company, Chicago, Illinois.Lawler, Matusky and Skelly Engineers (LMS). 1999. Braidwood Station Kankakee River Fish Monitoring Program, 1998. Report to Commonwealth Edison Company, Chicago, Illinois.Lawler, Matusky and Skelly Engineers (LMS). 2001. Braidwood Station Kankakee River Fish Monitoring Program, 2000. Report to Exelon Nuclear, Chicago, Illinois.Lawler, Matusky and Skelly Engineers (LMS). 2005. Braidwood Station Kankakee River Fish Monitoring Program, 2004. Report to Exelon Nuclear, Chicago, Illinois.Murphy, B.R., D.W. Willis, and T.A. Springer.

1991. The Relative Weight Index in Fisheries Management:

Status and Needs. Fisheries 16(2):28-30.

Pflieger, W.L. 1975. The Fishes of Missouri.

Missouri Department of Conservation.

Jefferson City, Missouri.Shannon, C.E. 1948. A Mathematical Theory of Communication.

Bell System Technical Journal 27:379-423, 623-656.Skelly, T.M. and M.J. Sule. 1983. The Pallid Shiner, Notropis amnis Hubbs and Greene, a Rare Illinois Fish. Transactions of the Illinois State Academy of Science 76:131-138.

Skelly, T.M. and S.M. Pescitelli.

1981. [Section 4]. Adult and Juvenile Fishes of the Kankakee River and Horse Creek. Construction and Preoperational Aquatic Monitoring Program for the Kankakee River. Braidwood Station Fourth Annual Report. fI1. Nat. Hist. Sur. Urbana, Illinois.5-2 HDR Engineering, Inc.

Smith, P.W. 1971. Illinois Streams. A Classification Based on Their Fishes and an Analysis of Factors Responsible for Disappearance of Native Species. Illinois Natural History Survey Biological Note 76.Smith, P.W. 1979. The Fishes of Illinois.

University of Illinois Press, Urbana, Illinois.

314 pp.Stange, R.J. and J.C. Pelton. 1987. Nutrient Content of Clupeid Forage Fishes. Trans. Am. Fish.Soc. 116:60-66.

Trautman, M.B. 1957. The Fishes of Ohio with Illustrated Keys. Ohio State University Press, Columbus, Ohio. 683 p.Trautman, M.B. 1981. The Fishes of Ohio. Ohio State Press in Collaboration with the Ohio Sea Grant Program Center for Lake Erie Area Research.

782 pp.Wege, G.J. and R.O. Anderson.

1978. Relative Weight (Wr): A New Index of Condition for Largemouth Bass. Pages 79-91. In (G.D. Novinger and J.G. Dillard, eds.) New Approaches to the Management of Small Impoundments.

North Central Division, American Fisheries Society, Special Publication 5.5-3 HDR Engineering, Inc.

APPENDIX A PHYSICOCHEMICAL DATA LIST OF TABLES Table No. Title Page No.A-1 Ancillary Measurements Recorded Concurrently with Electrofishing Samples from the Kankakee River and Horse Creek, August 8, 2012. A-1 A-2 Ancillary Measurements Recorded Concurrently with Electrofishing Samples from the Kankakee River and Horse Creek, August 22, 2012. A-2 A-3 Ancillary Measurements Recorded Concurrently with Seining Samples from the Kankakee River and Horse Creek, August 9, 2012. A-3 A-4 Ancillary Measurements Recorded Concurrently with Seining Samples from the Kankakee River and Horse Creek, August 21, 2012. A-4 A-5 Mean Monthly Discharge (ft 3/sec) in the Kankakee River Near Wilmington, Illinois, 1981-2012.

A-5 HDR Engineering, Inc.

TABLE A-I ANCILLARY MEASUREMENTS RECORDED CONCURRENTLY WITH ELECTROFISHING SAMPLES FROM THE KANKAKEE RIVER AND HORSE CREEK Braidwood Station -August 8, 2012 PARAMETER I L IR 2 3L 3R 4L 4R 5L 5R 6L 6R Time 1200 1250 1335 1435 1400 1515 1625 1025 0920 0720 0825 Temperature

(°C) 29.1 29.2 28.9 28.7 28.5 28.8 28.5 29.5 28.3 27.4 28.1 Dissolved oxygen (ppm) 8.34 8.15 8.41 7.65 7.80 8.05 7.13 8.35 7.20 6.73 6.93 pH 7.7 7.9 7.8 7.8 7.8 7.9 8.0 7.7 7.6 7.6 7.7 Conductivity (l.Unhos/cm) 605 605 609 606 605 608 625 629 632 633 632 TABLE A-2 ANCILLARY MEASUREMENTS RECORDED CONCURRENTLY WITH ELECTROFISHING SAMPLES FROM THE KANKAKEE RIVER AND HORSE CREEK Braidwood Station -August 22, 2012 PARAMETER IL IR 2 3L 3R 4L 4R 5L 5R 6L 6R Time 0745 0855 1625 0915 1025 1145 1100 1335 1245 1520 1430 Temperature

(°C) 23.5 23.5 25.4 23.3 23.8 24.3 24.4 25.2 25.1 25.6 25.4 Dissolved oxygen (ppm) 10.74 10.56 10.77 9.89 9.97 10.59 10.62 10.15 11.52 10.2 10.10 pH 8.1 8.0 8.2 8.0 8.0 8.1 8.1 8.2 8.2 8.1 8.1 Conductivity (prmhos/cm) 694 692 690 703 699 686 718 681 609 696 695 TABLE A-3 ANCILLARY MEASUREMENTS RECORDED CONCURRENTLY WITH SEINING SAMPLES FROM THE KANKAKEE RIVER AND HORSE CREEK Braidwood Station -August 9, 2012 PARAMETER IL I R 2 3L 3R 4L 4R 5L 5R 6L 6R Time 0745 0815 1255 1215 1150 1130 1100 0945 1015 0845 0930 Temperature

('C) 26.6 26.7 24.3 27.2 27.2 27.2 27.1 26.7 26.9 26.8 26.8 Dissolved oxygen (ppm) 7.26 7.30 7.54 8.27 7.75 7.15 8.64 6.85 7.05 7.30 7.06 Ph 7.7 7.7 8.1 7.8 7.8 7.7 7.8 7.8 7.8 7.7 7.7 Conductivity (pmhos) 612 612 593 6014 609 610 602 623 623 627 621 TABLE A-4 ANCILLARY MEASUREMENTS RECORDED CONCURRENTLY WITH SEINING SAMPLES FROM THE KANKAKEE RIVER AND HORSE CREEK Braidwood Station -August 21, 2012 PARAMETER IL IR 2 3L 3R. 4L 4R 5L 5R 6L 6R Time 1140 1115 1555 1505 1503 1430 1215 1355 1240 1315 1255 Temperature

(°C) 24.7 23.5 26.3 25.3 24.4 25.8 24.6 24.7 24.4 25.9 25.4 Dissolved oxygen (ppm) 10.21 9.14 10.44 10.74 9.86 10.51 9.45 8.90 8.72 10.82 8.92 pH 8.4 8.3 8.4 8.3 8.3 8.3 8.4 8.2 8.2 8.3 8.2 Conductivity (p.whos) 690 699 744 671 701 696 679 701 717 715 716 TABLE A-5 MEAN MONTHLY DISCHARGE (ftW/sec)

IN THE KANKAKEE RIVER NEAR WILMINGTON, ILLINOIS Braidwood Station 1981 -2012 YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC MEAN 1981 1982 1983 1984.1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1993 1999 2000 2001 2002 2003 2004'2005'2006*2007*2008'2009'2010'2011'2012'Mean'2025 4148 4124 9038 15810 12510 6809 5247 11180 22730 10340 5752 5684 4013 5585 6594 5788 11680 14320 4536 4190 2229 11740 13430 9309 11210 6695 2610 8104 9273 17780 11810 3232 2602 1477 3565 5865 6447 4353 7370 8941 6268 3675 5984 4261 4965 7270 6179 2272 7882 5615 5208 9074 2852 997 467 6483 4291 5372 6554 4387 8271 3677 5499 11660 15440 6689 9927 4872 6434 16220 9839 14960 10930 9917 5017 1252 4098 6291 6132 5424 2695 2441 4081 17270 6036 13800 14420 6606 14320 12710 5813 7811 8031 11890 6147 4753 5062 7699 3448 6960 11590 12300 6797 3300 2217 1859 2777 4008 11210 13260 9389 6031 .13660 13360 6217 6374 13990 4245 10240 7889 16620 11740 13230 8657 6792 5501 7517 7079 10930 7010 6008 2424 1166 1631 2794 4218 4105 7598 6700 1738 13190 7986 5691 3442 7695 2343 4051 19920 10380 11490 15700 4786 1794 1359 1184 20M8 3708 7492 3793 12720 4210 2078 6593 4525 4485 11030 2479 17490 10460 5486 5247 2899 1932 811 4548 3430 6125 6767 6146 3330 2622 12450 4838 12550 8701 5166 2545 1360 33001 21586 8891 7795 5301 9415 2223 13486 11448 14812 9084 9328 4905 2032 16266 5275 8634 5699 8328 12501 3281 4038 5760 9706 11744 12791 10414 3729 6 1 9 6 b 5763 5880 2605 6985 2412 700 7668 7446 9105 8070 7806 6840 4071 5775 2331 1380 1323 2102 1655 1692 451 2090 5793 757 2387 3871 2505 3302 5600 4047 3002 851 1536 1186 2309 2648 3568 1193 2063 4568 2041 1188 1948 1849 769 5141 4649 1173 1084 914 1402 832 1661 1462 2379 1321 7820 1580 1579 729 1380 9075 3094 3068 8879 839 2114 3036 2643 14370 15570 1778 1360 950 934 1666 1856 1836 1265 1058 1082 544 754 850 1144 1261 9202 813 822 1608 1568 3819 1633 843 1106 2940 4838 2901 1840 11596 4584 1449 3966 1010 923 1028 1595 894 c 3613 4335 6663 5742 18150 7951 2340 11210 5994 3744 5842 6051 15530 9610 7279 4585 6796 5581 1810 8991 4354 4180 4394 3768 3447 2390 5093 11260 14940 8871 6405 7306 7296 11540 7024 4816 9215 8659 11570 4219 6415 5648 4026 1931 5436 3146 6081 5422 1653 3031 6476 1115 1378 7067 712 1493 4402 1804 1599 3095 5535 6438 5642 969 1207 5604 5477 5707 4274 5846 10120 5032 1556 1556 4215 4763 4763 4361 2583 8558 5672 4109 16287 10569 7590 6695 7165 1099 2429 5616 2566 6523 5979 c 6 c 4596 6312 6031 2431 2574 3056 nData takcn rrom US Army Corp or Enincers website.Numbers in bold characlcrs represent provisional river flow data dData not available at time or printg&Mean calculated from January 1981 to August 2012.

APPENDIX B HISTORICAL CATCH DATA LIST OF TABLES Table No. Title Page No.B-i Percent of Total Catch of the Five Dominant Species Collected from the Kankakee River and Horse Creek, 1978-2012.

B-1 B-2 Percent Biomass of Total Catch of the Five Dominant Species Collected from the Kankakee River and Horse Creek, 1978-2012. B-4 UDR Engineering, Inc.

TABLE B-I PERCENT OF TOTAL CATCH OF THE FIVE DOMINANT SPECIES COLLECTED FROM THE KANKAKEE RIVER AND HORSE CREEK Braidwood Station -1978-2012 1978 Gizzard shad 16.1 Bluntnose minnow 15.1 Longear sunfish 9.4 Sand shiner 7.3 Smallmouth bass 6.5 Total 69.7 1982 Smallmouth bass 9.3 Golden redhorse 7.7 Striped shiner 7.7 Green sunfish 7.0 Rosyface shiner 6.5 Total 38.2 1985 Blunmose minnow 23.8 Spotfin shiner 13.5 Striped shiner 8.9 Smallmouth bass 6.6 Golden redhorse 6.5 Total 59.3 1988 Smallmouth bass 21.4 Gizzard shad 15.8 Longear sunfish 7.8 Rosyface shiner 6.8 Blunmose minnow 6.5 Total 58.3 1991 Gizzard shad 24.3 Spotfin shiner 17.1 Bluegill 13.6 Bullhead minnow 9.7 Blunmnose minnow 6.6 Total 71.3 1979 Spotfin shiner 23.5 Bluntnose minnow 18.4 Sand shiner 11.1 Smallmouth bass 5.6 Rock bass 4.8 Total 63.4 1983 Striped shiner 18.0 Spotfin shiner 11.6 Bluntnose minnow 9.8 Smallmouth bass 8.4 Sand shiner 7.5 Total 54.7 1986 Blunmose minnow 20.8 Longear sunfish 13.1 Golden redhorse 9.3 Rock bass 7.5 Smallmouth bass 6.3 Total 57.0 1989 Longear sunfish 19.4 Smallmouth bass 12.2 Blunmose minnow 10.5 Rock bass 5.5 Green sunfish 5.4 Total 53.0 1992 Spotfin shiner 31.1 Striped shiner 9.7 Smallmouth bass 9.5 Blunmose minnow 8.4 Longear sunfish 6.9 Total 65.6 1981 Spotfin shiner 10.2 Golden redhorse 9.8 Blunnose minnow 7.7 Shorthead redhorse 6.8 Rock bass 6.1 Total 40.6 1984 Spocfin shiner 14.3 Striped shiner 9.5 Bullhead minnow 8.2 Green sunfish 7.9 Smallmouth bass 7.7 Total 47.6 1987 Spotfin shiner 21.9 Blunmnose minnow 13.2 Longear sunfish 10.4 Gizzard shad 6.0 Bullhead minnow 5.8 Total 57.3 1990 Gizzard shad 36.2 Longear sunfish 13.6 Spotfin shiner 5.6 Golden redhorse 5.2 Rock bass 4.8 Total 65.4 1993 Longear sunfish 20.8 Gizzard shad 12,0 Rock bass 8.6 Smallmouth bass 6.4 Spotfin shiner 6.1 Total 53,9 B-1 TABLE B-1 (Continued)

PERCENT OF TOTAL CATCH OF THE FIVE DOMINANT SPECIES COLLECTED FROM THE KANKAKEE RIVER AND HORSE CREEK Braidwood Station -1978-2012 1994 Golden redhorse 26.6 Gizzard shad 11.0 Striped shiner 10.9 Bluntnose minnow 9.9 Sand shiner 6.8 Total 65.2 1997 Gizzard shad 38.5 Bluninose minnow 17.2 Sand shiner 7.6 Spotfin shiner 7.2 Longear sunfish 3.9 Total 74.4 2000 Spotfin shiner 39.1 Blunmose minnow 20.3 Bullhead minnow 12.5 Longear sunfish 8.9 Sand shiner 5.1 Total 85.9 2003 Carp 24.0 Longear sunfish 16.3 Bluinnose minnow 11.8 Spotfin shiner 10.2 Bullhead minnow 8.9 Total 71.2 1995 Blunmose minnow 24.6 Gizzard shad 15.1 Bluegill 10.8 Longear sunfish 8.4 Bullhead minnow 8.3 Total 67.2 1998 Bluntnose minnow 34.7 Gizzard shad 26.2 Longear sunfish 7.3 Sand shiner 4.1 Bluegill 3.4 Total 75.7 2001 Bluntnose minnow 21.1 Bullhead minnow 14.0 Spotfin shiner 13.2 Longear sunfish 11.4 Sand shiner 8.4 Total 85.9 2004 Spotfin shiner 16.8 Longear sunfish 13.4 Blunmose minnow 12.8 Sand shiner 7.9 Orange.spoted sunfish 5.7 Total 56.6 1996 Bluntnose minnow 30.0 Bullhead minnow 11.2 Carp 9.2 Sand shiner 8.9 Spotfin shiner 8.2 Total 67.5 1999 Bluntnose minnow 23.1 Bullhead minnow 19.2 Spotfin shiner 6.9 Longear sunfish 6.4 Gizzard shad 5.6 Total 61.2 2002 Bluntnose minnow 20.2 Striped shiner 13.5 Bullhead minnow 12.4 Brook silverside 7.1 Spotfin shiner 7.1 Total 60.3 2005 Bluntnose minnow 12.5 Spotfin shiner 9.1 Sand shiner 6.8 Smallmouth bass 5.9 Brook silverside 5.5 Total 39.8 B-2 TABLE B-1 (Continued)

PERCENT OF TOTAL CATCH OF THE FIVE DOMINANT SPECIES COLLECTED FROM THE KANKAKEE RIVER AND HORSE CREEK Braidwood Station -1978-2012 2006 Longear sunfish 35.7 Bluntnose minnow 16.8 Spotfin shiner 7.4 Gizzard shad 6.6 Rock bass 4.2 Total 70.7 2009 Spotfin shiner 29.6 Bullhead minnow 17.3 Bluntnose minnow 10.9 Sand shiner 7.8 Longear sunfish 6.3 Total 71.9 2012 Longear sunfish 15.9 Bullhead minnow 12.9 Blunmoose minnow 11.9 Largemouth bass 9.6 Spotfin shiner 9.2 Total 59.5 2007 Brook silverside 20.9 Bullhead minnow 8.9 Longear sunfish 7.0 Bluntnose minnow 6.3 Snmallmouth bass 5.8 Total 48.9 2010 Spotfin shiner 23.0 Longear sunfish 16.0 Bluntmose minnow 15.7 Bullhead shiner 10.5 Largemouth bass 6.3 Total 71.5 2008 Longear sunfish 16.8 Spotfin shiner 15.1 Bluntnose minnow 12.0 Bullhead minnow 9.4 Sand shiner 7.1 Total 60.4 2011 Sporfin shiner 33.3 Longear sunfish 13.6 Bullhead minnow 9.4 Bluntnose minnow 8.8 Sand shiner 6.7 Total 71.8 B-3 TABLE B-2 PERCENT BIOMASS OF TOTAL CATCH OF THE FIVE DOMINANT SPECIES COLLECTED FROM THE KANKAKEE RIVER AND HORSE CREEK Braidwood Station -1978-2012 1978 Carp Quillback Smallmouth bass Golden redhorse Silver redhorse 22.6 15.4 12.9 9.7 9.1 1979 Golden redhorse Smailmouth bass Carp Rock bass Quillback 14.9 14.9 14.1 9.6 9.3 Total 69.7 1982 Carp 26.9 Silver redhorse 17.6 Golden redhorse 11.7 Smallmouth bass 10.0 Quillback 9.3 Total 75.5 1985 Smallmouth bass 25.9 Golden redhorse 16.7 Quillback 13.5 Carp 9.3 Rock bass 8.2 Total 73.6 1988 Golden redhorse 25.3 Smiallmouth bass 13.5 Gizzard shad 12.6 Carp 10.3 Quillback 9.9 Total 71.6 1991 Carp 29.9 Gizzard shad 18.6 Golden redhorse 12.1 Silver redhorse 9.6 Quillback 7.7 Total 77.9 Total 62.8 1983 Quillback 36.0 Carp 16.5 Golden redhorse 11.6 Sniallmouth bass 8.1 Silver redhorse 5.5 Total 77.7 1986 Golden redhorse 26.6 Quillback 13.3 Rock bass 9.9 Smallmouth bass 9.2 Gizzard shad 7.1 Total 66.1 1989 Carp 25.2 Golden redhorse 15.7 Smallmouth bass 12.8 Rock bass 7.2 River redhorse 6.5 Total 67.4 1992 SmallnIouth bass 22.0 Carp 17.4 Gizzard shad 9.6 Channel catfish 9.4 Golden redhorse 8.6 Total 67.0 1981 Shorthead redhorse 21.0 Golden redhorse 18.3 Carp 15.6 Smallmouth bass 7.9 Rock bass 5.2 Total 68.0 1984 Quillback 28.2 Golden redhorse 18.8 Silver redhorse 13.4 Smallmouth bass 9.6 Northern hogsucker 7.6 Total 77.6 1987 Golden redhorse 16.6 Smallmouth bass 15.1 Gizzard shad 14.1 Quillback 13.4 Rock bass 9.4 Total 68.6 1990 Golden redhorse 21.6 Carp 16.6 River redhorse 13.0 Quillback 10.8 Silver redhorse 7.1 Total 69.1 1993 Carp 19.2 Golden redhorse 16.5 Silver redhorse 13.3 Smallmouth bass 12.2 Quillback 10.9 Total 72.1 B-4 TABLE B-2 (Continued)

PERCENT BIOMASS OF TOTAL CATCH OF THE FIVE DOMINANT SPECIES COLLECTED FROM THE KANKAKEE RIVER AND HORSE CREEK Braidwood Station -1978-2012 1994 Carp 49.5 Golden redhorse 12.1 Silver redhorse 6.1 Channel catfish 5.3 Smallmouth bass 4.5 Total 77.5 1997 Carp 27.0 Silver redhorse 24.4 Gizzard shad 14.3 Golden redhorse 7.7 Smallmouth bass 6.3 Total 79.7 2000 Carp 23.4 Smallmouth bass 10.8 Gizzard shad 8.7 Channel catfish 8.5 Golden redhorse 8.5 Total 59.9 2003 Carp 24.0 Longear sunfish 16.3 Bluntnose minnow 11.8 Spotfin shiner 10.2 Bullhead minnow 8.9 Total 71.2 1995 Carp 38.1 Sniallmouth bass 8.8 Silver redhorse 8.1 Golden rrdhorse 5.9 Bigmouth buffalo 5.4 Total 66.3 1998 Carp 30.8 Silver redhorse 13.5 Gizzard shad 11.8 Golden redhorse 9.6 Smallmouth bass 6.3 Total 72.0 2001 Carp 43.3 Smailmouth bass 15.0 Gizzard shad 7.2 Golden redhorse 6.7 Longear sunfish 4.8 Total 59.9 2004 Smallmnouth bass 20.1 Carp 16.9 Longear sunfish 11.6 Gizzard shad 10.1 Silver redhorse 7.7 Total 66.4 1996 Carp 30.3 Quillback 11.4 Golden redhorse 9.9 Smallmouth bass 8.2 Gizzard shad 6.2 Total 66.0 1999 Gizzard shad 19.0 Carp 14.0 Golden redhorse 14.0 Silver redhorse 12.3 Smallmouth bass 7.2 Total 66.5 2002 Carp 29.8 Smallmouth bass 18.2 Golden redhorse 6.6 Gizzard shad 5.7 Channel catfish 5.5 Total 65.8 2005 Carp 25.2 Smallmouth bass 16.1 Channel catfish 12.0 Northern hog sucker 6.9 Golden redhorse 6.5 Total 66.7 B-5 TABLE B-2 (Continued)

PERCENT BIOMASS OF TOTAL CATCH OF THE FIVE DOMINANT SPECIES COLLECTED FROM THE KANKAKEE RIVER AND HORSE CREEK Braidwood Station -1978-2012 2006 Carp 31.6 Gizzard shad 14.4 Channel catfish 12.6 Smallmouth bass 9.2 Golden redhorse 8.8 Total 76.6 2009 Golden redhorsc 25.5 Channel catfish 18.6 Carp 12.8 Smallmouth bass 5.6 Freshwater drum 5.0 Total 67.5 2012 Carp 26.2 Golden redhorse 15.1 Smallmouth bass 13.7 Channel catfish 8.9 Walleye 8.7 Total 72.6 2007 Carp 31.4 Golden redhorse 14.2 Channel catfish 12.6 Smallmouth bass 9.1 River carpsucker 6.9 Total 74.2 2010 Carp 29.7 Channel catfish 18.3 Smallmouth bass 8.7 Largemouth bass 6.0 Freshwater drum 5.5 Total 68.2 2008 Carp 26.7 Channel catfish 16.3 Golden redhorse 14.7 Smallmouth bass 8.4 Silver redhorse 6.1 Total 72.2 2011 Carp 28.8 Golden redhorse 14.7 Walleye 8.2 Bigmouth buffalo 7.4 Channel catfish 7.0 Total 66.1 B-6 APPENDIX C RELATIVE WEIGHTS LIST OF TABLES Table No. Title Page No.C-1 Relative Weights of Fish Collected from the Kankakee River and Horse Creek, August 2012. C-I HDR Engineering, Inc.

TABLE C-1 RELATIVE WEIGHTS OF FISH COLLECTED FROM THE KANKAKEE RIVER AND HORSE CREEK, AUGUST 2012.COMMON CARP Alpha = -4.418 Beta -2.859 Minimum Length = 280 iL Above Intake. Left Bank 4R Discharge Area, Right Bank NO. TL(mm)1 706 Location Average No. TL(mm)1 553 Location Average No. TL(mm)1 595 2 630 Wgt (gm)5150 96.62 Wr 96.62 Wgt (gm)2250 wr 84.87 84.87 SR Near Field Recorvery, Right Bank Wgt (gm)3000 3800 Wr 91.79 98.73 Location Average 95.26 6R Far Field Recovery, Right Bank No.1 2 3 TL(mm)627 568 687 Wgt (gm)4300 2980 4300 Wr 113.26 103.07 87.22 Location Average TAXON AVERAGE 101.18 96.51 ..**RIVER CARPSUCKER Alpha --4.754 Beta -2.952 Minimum Length = 200 3R At Intake, Right Bank No. TL ram)1 418 Location Average No. Th(mm)1 478 Location Average Wgt (gm)1050 Wr 109.01 109.01 SL Near Field Recovery, Left Bank Wgt (gm)1200 Wr 83.85 83.85 TAXON AVERAGE 96.43 -*=*C-I TABLE C-I (Continued)

RELATIVE WEIGHTS OF FISH COLLECTED FROM THE KANKAKEE RIVER AND HORSE CREEK, AUGUST 2012.RIVER CARPSUCKER 5L Near Field Recovery, Left BE CHANNEL CATFISH Alpha = -4.754 Beta = 2.952 ink No. TL(mm) Wgt(gm)Alpha = -5.649 Beta = 3.243 Minimum Length = 200 Wr Minimum Length = 280 1L Above Intake, Left Bank ,.No. TL (am)1 534 2 569 3 588 Location Average No. TL~mm)1 658 Location Average TAXON AVERAGE wgt 1gm)1500 1650 2300 Wr 95-43 85.44 107.06 95.98 6L Far Field Recovery, Left Bank wgLt gm)3300 Wr 106.66 106.66*** 98.65 -**NORTHERN PIKE 2 Horse Creek Alpha w -5.369 Beta = 3.059 Minimum Length 1 100 No. TLImm) Wgt(gm) Wr 1 418 410 91.96 F Location Average TAXON AVERAGE 91.96 91.96 .-ROCK BASS 1L Above Intake, Left Bank Alpha --4.883 Beta = 3.083 Minimum Length = 100 No.1 2 3 4 TL ( mm)201 153 170 172 Wgt (gm)171 90 117 134 Wr 103.57 128.43 118.77 131.21 120.00 Wr 128.43 127.20 Location Average 1R Above Intake, Right Bank No.1 2 C-2 TL (mm)157 182 Wgt (gm?99 108 TABLE C-1 (Continued)

RELATIVE WEIGHTS OF FISH COLLECTED FROM THE KANKAKEE RIVER AND HORSE CREEK, AUGUST 2012.ROCK BASS Alpha = -4.883 Beta -3.083 Minimum Length -100 IR Above Intake, Right Bank No. TL(mm) Wgt (gm)Location Average Wr 127.82 Wr 84.23 3L At Intake, Left Bank No. TLijmi)1 168 wgt (ga)80 Location Average 84.23 3R At Intake, Right Bank 4R Discharge Area, Right Bank No. TLb(mm)1 105 Location Average No. TL(ram)1 108 Location Average No. TL(mm)1 153 Location Average fgt (gme 26 116.59 Wr 116.59 Wgt (gm)25 Wr 102.78 102.78 SR Near Field Recorvery, Right Bank Mgt (gm)82 6L Far Field Recovery, Left Bank No. TLemm)1 220 Wgt (gal 258 Wr 115.19 115.19 Wr 118.29 118.29 Wr 109.12 Location Average 6R Far Field Recovery, Right Bank No. TL(mm)1 198 Wgt (gm)172 Location Average TAXON AVERAGS 109.12**** 11 I .**-*BLUEGILL SUNFISH Alpha --5.374 Beta .3.316 Minimum Length -80 IR Above Intake, Right Bank No. TL (am)1 96 Wgt (ge)20 Wr 126.42 C-3 TABLE C-1 (Continued)

RELATIVE WEIGHTS OF FISH COLLECTED FROM THE KANKAKEE RIVER AND HORSE CREEK, AUGUST 2012.BLUEGILL SUNFISH Alpha --5.374 Beta -3.316 Minimum Length -80 IR Above Intake, Right Bank No. TL(mm) Wgt(gm)Location Average 4R Discharge Area, Right Bank No. TL(mm) Wgt(gm)1 122 44 Wr 126.42 Wr 125.63 125.63 Wr 96.53 Location Average 5L Near Field Recovery, Left Bank No. TL(mm) Wgt(gm)1 114 27 Location Average 96.53 SR Near Field Recorvery, Right Bank No. TL(mm) Wgt(gm)1 96 20 2 96 21 3 107 25 Wr 126.42 132.74 110.28 123.15 Wr 99.37 132.70 Location Average SL Far Field Recovery, Left Bank No. TL(mm) Wgt(gm)1 100 18 2 112 35 Location Average 116.04 6R Far Field Recovery, Right Bank No. TL(mm) Wgt(gm)1 141 70 Wr 123.68 123.68 Location Average TAXON AVERAGE**** 119.31 ****GREEN SUNFISH Alpha = -4.814 Beta -3.056 Minimum Length = 80 2 Horse Creek No.1 2 TL (mm)177 102 Wgt (gm)144 20 Wr 126.64 94.79 110.71 Location Average C-4 TABLE C-1 (Continued)

RELATIVE WEIGHTS OF FISH COLLECTED FROM THE KANKAKEE RIVER AND HORSE CREEK, AUGUST 2012.GREEN SUNFISH Alpha = -4.814 Beta = 3.056 Minimum Length -80 3R At Intake, Right Bank No. TLr(mn) Wgt (gm)1 90 12 Wr 83.37 Location Average TAXON AVERAGE 83.37..*

  • 101.60 -****REDEAR SUNFISH Alpha --S.164 Beta = 3.227 Minimum Length = 100 SR Near Field Recorvery.

Right Bank NO. TL(mm) Wgt(gm)1 145 80 Wr 123.70 123.70 Location Average TAXON AVERAGE**** 123.70 ****LARGEMOUTH BASS Alpha --5.528 Beta -3.273 Minimum Length -150 1L Above Intake, Left Bank No. TL (inm)1 186 2 248 Wgt (gm)124 216 Location Average Wr 156.07 106.03 131.05 Wr 171.73 107.77 106.66 3R At Intake, Right Bank No. TL (mrm)1 153 2 192 3 221 Wgt (gml 72 95 149 Location Average 128.72 4L Discharge Area, Left Bank No.1 2 3 4 5 7 8 C-5 TL(mm)158 159 165 171 177 182 190 206 Wgt (gin)70 81 73 82 99 100 101 122 wr 150.28 170.34 135.99 135.90 146.56 135.14 118.57 109.92 TABLE C-1 (Continued)

RELATIVE WEIGHTS OF FISH COLLECTED FROM THE KANKAKEE RIVER AND HORSE CREEK, AUGUST 2012.LARGEMOUTH BASS Alpha = -5.528 Beta = 3.273 Minimum Length = 150 4L Discharge Area, Left Bank No. TL (mm)9 215 Wgt 1gm)138 Location Average 5L Near Field Recovery, Left Bank No. TL (mm)1 163 Wgt (gm)92 Wr 108.10 134.S3 Wr 178.36 178.36 Wr 152.47 110.54 103.98 126.96 SR Near Field Recorvery, Right Bank Location Average No. TL(mm)1 171 2 197 3 203 4 231 Location Average NO. TLlmm)1 282 Location Average Wgt (gin)92 106 110 205 123.49 6L Far Field Recovery, Left Bank Wgt (gin)345 Wr 111.21 111.21 TAXON AVERAGE.*** 132.13 ****SMALLMOUTH BASS Alpha --4.983 Beta = 3.055 Minimum Length = 180 IL Above Intake, Left Bank No. TLtmm)1 196 Wgt (gm)123 We 117.51 F IR Above Intake, Right Bank Location Average No. TL(mm)1 305 2 412 3 193 Location Average 117.51 Wgt (gm)453 1100 99 Wr 112.09 108.61 99.14 106.61 Wr 110.29 101.76 3L At Intake, Left Bank NO.1 2 C-6 TL(mm)187 331 Wgt (gm)10O 528 TABLE C-1 (Continued)

RELATIVE WEIGHTS OF FISH COLLECTED FROM THE KANKAKEE RIVER AND HORSE CREEK, AUGUST 2012.SMALL4OUTH BASS Alpha --4.983 Beta -3.055 Minimum Length = 180 3L At Intake, Left Bank No. TL(mm)*3 396 Location Average Wgt (gin)885 Wr 98.62 103.56 4L Discharge Area, Left Bank No.1 2 TFL Cam)390 462 Wgt (gin)905 1200 Wr 105.67 83.50 4R Discharge Area, Right Bank Location Average No. TL(mm)1 425 Location Average No. TL(mm)1 378 Location Average Wgt (gm)1070 Wr 96.09 94.59 96.09 5L Near Field Recovery, Left Bank Wgt (gin)819 SR Near Field Recorvery, Right Bank No. TL (nmn)1 392 2 346 wgt (gm)906 703 Wr 105.21 105.21 Wr 104.15 118.33 111.24 Wr 106.48 112.07 101.22 Location Average 6L Far Field Recovery, Left Bank No.1 2 3 TL (ram)299 361 368 Wgt (gin)40S 758 726 6R Far Field Recovery, Right Bank Location Average No. TLtmml 1 276 2 326 3 392 106.59 Wgt (gm)319 605 935 Wr 107.11 122.14 107.48 Location Average 112.24 C-7 TABLE C-1 (Continued)

RELATIVE WEIGHTS OF FISH COLLECTED FROM THE KANKAKEE RIVER AND HORSE CREEK, AUGUST 2012.SMALLMOUTH BASS Alpha --4.983 Beta = 3.055 Minimum Length .180 6R Far Field Recovery, Right Bank No. TL I mm)Wgt (gm) Wr TAXON AVERAGE Alpha -5.453 Beta -3.3.80* 106.18 ****.80 Minimum Length -150 WALLEYE IL Above Intake, Left Bank No. TL(mm)1 163 2 171 3 181 Location Average Wgt (gin)46 51 47 Wr 120.50 114.72 88.24 107.82 Wr 81.14 IR Above Intake, Right Bank No. TL (mm)1 569 Wgt (gm)1650 Location Average 81.14 2 Horse Creek No. TL (mrm)"1 171 2 183 3 197 Wgt (gm)61 45 62 wr 137.22 81.59 88.92 102.57 Wr 90.35 f}Location Average 3R At Intake, Right Bank No.1 TL (mam)194 Wgt (gin)60 4L Discharge Area, Left Bank Location Average No. TL (min 1 181 2 192 Location Average 90.35 Wgt (gin)50 54 Wr 93.88 84.04 88.96 4R Discharge Area, Right Bank No.1 2 3 4 TL (mm)176 170 176 192 Wgt (gin)52 40 45 56 Wr 106.73 91.67 92.36 87.15 C-8 TABLE C-1 (Continued)

RELATIVE WEIGHTS OF FISH COLLECTED FROM THE KANKAKEE RIVER AND HORSE CREEK, AUGUST 2012.WALLEYE Alpha --5.453 Beta -3.180 Minimum Length -150 4R Discharge Area, Right Bank NO. TL (mmlI Location Average No. TL(mm)1 172 Location Average Wgt(gm) Wr 94.48 5L Near Field Recovery, Left Bank wgt (gin)46 SR Near Field Recorvery, Right Bank No. TL (mm)1 2 3 4 5 6 7 8 154 368 150 152 154 162 168 170 wgt (gm)30 705 27 24 29 36 39 41 Wr 101.57 101.57 Wr 94.15 138.61 92.13 78.51 91.01 96.17 92.81 93.96 Location Average No. TL(mm)97.17 6L Far Field Recovery, Left Bank 1 2 3 4 5 411 436 438 481 587 Wgt (gm)614 773 726 1040 1900 Wr 93.25 88.64 82.04 87.26 84.62 Location Average TAXON AVERAGE 87.16 95.47 ****FRESHWATER DRUM Alpha --5.433 Beta -3.208 Minimum Length -100 IL Above Intake, Left Bank No. TL(mm)1 355 2 481 Wgt (gm)656 1700 Wr 127.16 114.58 115.87 Wr 115.20 Location Average 2 Horse Creek No. TL Im)I 452 Wgt (gin)1400 C-9 TABLE C-1 (Continued)

RELATIVE WEIGHTS OF FISH COLLECTED FROM THE KANKAKEE RIVER AND HORSE CREEK, AUGUST 2012.FRESHWATER DRUM Alpha --S.433 Beta -3.208 Minimum Length l 100 2 Horse Creek No. TL mm) Wgtc(gm Wr---------------------


------- -------Location Average 115.20 TAXON AVERAGE **** 115.65 ....C-1O Braidwood Environmental Audit -Request for Additional Information Response Question #: AQ-10 Category:

Aquatic Ecology Statement of Question: Provide the following references: (a) Commonwealth Edison Company. 1973. Braidwood Station Environmental Report- Volume II. Aquatic Ecology Sections.

July 1973.(b) Larimore, R.W. 1989. Kankakee River Fishes of the Braidwood Station Aquatic Monitoring Area, August 1989 [sic -should be August 1988]. Illinois Natural History Survey Aquatic Biology Technical Report. January 1989.(c) EA Engineering, Science, and Technology (EA). 2012. Braidwood Station 2011 Benthos Monitoring and Historical Fish and Benthos Comparisons.

July 2012.(d) Exelon Nuclear (Exelon).

2009. Standard Operating Procedures for Braidwood Station's Fisheries Monitoring Program in the Kankakee River and Horse Creek.July 2009.(e) Exelon Nuclear (Exelon).

2009. Final Report: Characterization of Unionid Communities near the Braidwood Nuclear Station Kankakee River Discharge Location.

January 2009.(f) Exelon Nuclear (Exelon).

2009. Application for an Incidental Take Permit for Threatened or Endangered Species and Conservation Plan. May 11, 2009.(g) Exelon Nuclear (Exelon).

2011. Braidwood Station Kankakee River Fish Monitoring Program, 2010.(h) (Exelon Nuclear 2011 b) Exelon Nuclear. 2011. Braidwood Station Kankakee River Fish Monitoring Program, 2010.(i) Illinois Department of Natural Resources (IDNR). 2008. Status of Fish Communities and Sport Fishery in the Kankakee River and Tributary Streams: 2005 Basin Survey. Fisheries Region II, Streams Program. April 2008.(j) Illinois Department of Natural Resources (IDNR). 2000. Permit No NE2000125-proposed operation and maintenance of the Braidwood Nuclear Station cooling pond dam, Will County. Office of Water Resources.

December 20, 2000.Response: The requested reference documents are attached, except for: 1. Item AQ-10(b), which is a duplicate of the document requested by and provided in response to item AQ-6(c); and 2. Item AQ-10(h), which is a duplicate of the document requested by and provided in response to item AQ-1 0(g).

List Attachments Provided: 1. Commonwealth Edison Company. 1973. Braidwood Station Environmental Report- Volume II. Aquatic Ecology Sections.

July 1973.2. See response to item AQ-6(c).3. EA Engineering, Science, and Technology (EA). 2012. Braidwood Station 2011 Benthos Monitoring and Historical Fish and Benthos Comparisons.

July 2012.4. Exelon Nuclear (Exelon).

2009. Standard Operating Procedures for Braidwood Station's Fisheries Monitoring Program in the Kankakee River and Horse Creek. July 2009.5. Exelon Nuclear (Exelon).

2009. Final Report: Characterization of Unionid Communities near the Braidwood Nuclear Station Kankakee River Discharge Location.

January 2009.6. Exelon Nuclear (Exelon).

2009. Application for an Incidental Take Permit for Threatened or Endangered Species and Conservation Plan. May 11, 2009.7. Exelon Nuclear (Exelon).

2011. Braidwood Station Kankakee River Fish Monitoring Program, 2010.8. See response to item AQ-10(g).9. Illinois Department of Natural Resources (IDNR). 2008. Status of Fish Communities and Sport Fishery in the Kankakee River and Tributary Streams: 2005 Basin Survey. Fisheries Region II, Streams Program. April 2008.10. Illinois Department of Natural Resources (IDNR). 2000. Permit No NE2000125-proposed operation and maintenance of the Braidwood Nuclear Station cooling pond dam, Will County. Office of Water Resources.

December 20, 2000.