ML20079N283
| ML20079N283 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 12/31/1982 |
| From: | Donkers C, Weinhold J NORTHERN STATES POWER CO. |
| To: | |
| References | |
| RTR-NUREG-1437 AR, NUDOCS 9111110143 | |
| Download: ML20079N283 (13) | |
Text
_.
g, MONTICELLO NUCLEAlt CLN l'LANT ATTACllMENT 4 MONTICELLO NUCLEAR GENEPATING PLANT E!NIR0!NENTAL MONITORING PROGRAM 1982 ANNUAL REPORT CREEL SURVEY Prepared by:
J. W. Weinhold and C. A. Donkers Environmental and Regulatory Activities Department Enhironmental Sciences Section Northern States Power Company 111 9111110143 021231 PDR NUREO 1437 C PDR
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A SUMMAR'l OP_THE-1982 MONTICELLO SHERCO CREEL SURVEY INTRODUCTION In accordance with NPDES Permit MN0000868, angler usage of the Mississippi River in the Monticello-SHERCO area was surveyed in 6
1982.
i Using the 1982 data, comparisons of cagler usage and catch rates were made with mirveys conducted from 1972 through 1979.
Sampling daten included May 15 thrc~. 'h October 17, 1982.
Ninety days were sampled during this 156-dty period, which included a majority of the river's annual fishing pressure.
'i n e s i x creel survey stations (Figure 1) encompass a
13.7 kilometer reach of the Mississippi River and were the same stations used in the 1972-1979 surveys.
MATERIALS AND METHODS Angler population was sampled by a stratified random creel
- survey, as described in the 1974 NSP Monticello Annual Environmental Monitoring Report.
Fishing pressure for each section was calculated by ase of the following formulas:
Number of anglers counted on weekend Estimated day X dayligh t hours in wee,kends
= man-hours fished - X Number of weekend counts during weekends 113
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Number of anglers counted on weekdays Estimated X daylight hcurs in weekdays
= man-hoers fished = Y Number of weekday counts during week /9y.
X + Y = total estimated man-hoars fished curing survey pe:Aod.
Calculations for the overall catch rate were made by using the following:
Number of fish caught by interviewed anglers Overall catch rate = Man-hours spent fishing by interviewed anglers This method does not account for differences in catch rate regarding fish species the angler is seeking.
A second method was used to account for thic bias.
" Preferred species catch rate" or " sought catch rate" was calculated as Number of fish of a species caugh t by interviewed anglers fishing for that species Preferred species catch rate. Man-hours sp=at fishing for that particular species or group of species by the interviewed anglers.
Estimated number harvested for each species was calculated by multiplying estimated fishing pressure by the overall catch rate for that sp'ecies.
Total estimated weight of angler-caugh t species was calculated by multiplying estimated number har-vested by average weight.
As in previous years, the data collection consisted of two parts:
angler interviews and instantaneous counts on the number of fishermen and boats.
Sampling was conducted on every weekend 114
during the study period.
Two weekdays were also randomly
-selected and sampled each we,ek.
The survey clerk was positioned at one station for a complete day.
The clerk at the sacoling site made 10 instantaneous counts daily at hourly intervals, snd also conducted as many interviews with fishermen as possible.
The information from this survey was then compiled and submitted for analysis under NSP's Computer Program CRAPPIE for estimates of angler pressure and cacch rates.
RESULTS Table 1 gives the number of instantaneous
- counts, number of fishermen counted, and an estimate of fisherman man-hours per site.
In
- total, 900 instantaneous counts were made, 1,255 fisherme n were interviewed, and an estimated 18,222 man-hours spent fiching.
Table 2 presents overall catch rates for the species of fish caught at each sampling site.
During the 1982 creel survey, a total of 2,144 fish were caught at a rate of 0.846 fish per man-hour.
Catch rates for species sought by site are presented-in Table 3.
The ove' all rate of success for species sought was 0.489 fish-
.per man-aour.
Table 4 illustrates the annual catch r nt for all species combined ' from 1972 through 1982.
Estimated harvest expressed as numbers for each species for each s ampling L site, total estimated harvest in kg, and mean weight for each spotles is given in Table 5.
Fish not desired by anglers and released were excluded from the harvest estimates.
The 1982 total harvest estimate was 5,336 fish weighing 2563. 4 kilograms.
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DISCUSSION l
The total 1982 fishing pressure estimate'was 18,222 man-hours.
This was an 8.6 percent decrease from the 1979 survey, which was the highest estimate recorded.
During 1979, 57 percent of the total fishing pressure was expended at the KNGP's discharge canal by NSP personnel.
There was less variation in the distribution of angling pressure in 1982.
Fishing pressure was greatest at Big Oaks and Montissippi Park, which received 30,7 and 20.7 percent, respectively.
Angling pressure at the four remaining sites were similar:
Nelson's Landing 13.3 percent, Tarzan Elms 10.1 percent, Discharge Canal 13.4 percent, and River Terrace 11.J percent of the total man-hour estimate.
The boat ramp at Montissippi Park was the primary reason for the high pressure at the park and Big Oaks, which is directly across the river.
It was a primary take out point for float trips which are becoming the dominant form of
- angling, especially during low-flow conditions.
The species-sought distribution was as follows:
60 percent of the tishing pressure was for smallmouth bass, 19 percent for anything, 15 percent for walleye, 2 percent for northern pike, and 1.5 percent for black crappie.
As in earlier studies, the major fishing pressure was on the. most catchable species.
Traditionally, this has been the smallmouth bass.
The real overall catch rates for all species combined was 0.846 fish per man-hour.
Smallmouth bass had the highest catch rate of 0.487 fish.per hour.
The remaining catch rates were as follows:
walleye 0.066, shorthead redhorse 0.066, carp 0.062, silver redhorse 0.060, black crappie 0.059, northern pike 0.021, rock bass 0.011, bullhead 0.008, burbot 0.002, muskellunge 0.001, channel catfish 0.001, and northern hogsucker 0.001 fish per hour.
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Channel catfish, northern hogsucker, and burbot are species that have not been documented in prior creel survey investigations.
Burbot and northern hogsucker have been collected in previous MNGP electrofishing studies and are not uncommon in this area.
Channel catfish were stocked in Wright and Anoka Counties in
- 1963, 1973, and 1974 in an attempt to establish a
self-sustaining population.
This is believed to be the first documentation of this species being collected in this area.
The MNGP discharge canal had the highest rate of success; 1.079 fish were caught per man-hour of angling.
Montissinpi Park was the least productive with an overall catch rate oi 0.722 fish per man-hour.
The majority of angling was conducted in boats during float trips.
Thirty-five percent of the anglers used natural bait, 34 percent used artificial lures, and 30 percent used a combination of artificial and natural baits.
Thirty-one percent of these anglers were from the Twin
- Cities, 28 percent were from Monticello, and 28 percent were from areas further than 30 miles away.
l Daily _ fishing pressure-had the following distribution:
Sunday 20.4
- percent, Monday 12.7
- percent, Tuesday 8.5
- percent, Wednesday 7.6 percent, Thursday 15.8 percent, Friday 9.8 per-cent, and Saturday 25 percent, l
Total harvest estimate for the six creel census sites was 5,336 fish and 2563.4 kg.
Big Oaks had the largest harvest estimate with 2,247 fish and 1116.4 kg.
The remaining sites were pro-gressively lower in - this order:
Montissippi Park 972 fish and 457 kg ; River Terrace 541 fish and 411.4 kg ;
Discharge Canal 1,055 fish and 332.7 kg; Tarzan Elms 288 fish and 135.2 kg ; and Nelson's Landing 232 fish and 110.7 kg.
117 l
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The smallmouth bass is consistently the major species sought by anglers in this study area.
Although the average length and weight of the harvested smallmouth bass was 300 mm and 0.389 kg, there were several fish over 1.40 kg.
The largest smallmouth bass collected during the 1982 curvey weighed 2.04 kg.
Other noteworthy catches were walleye 2.30 kg, northern pike 6.81 kg, black crappie 0. 68 kg, and muskellunge 11. 3 5 kg.
SUMMARY
1.
The 1982 angler creel survey was conducted on 90 days during i
a 156-day period between May 15 and October 17, 1982.
2.
Total fishing pressure for all sites was estimated at 18,222 man-hours, which is an 8.6 percent decrease from 1979.
f 3.
The overall catch-rate for all species combined was 0.846 fish ps hour.
4.
The total harvest estimate was 5336 fish and 2563.4 kg.
5.
Smallmouth bass is the major sport fish near MNGP.
Black crappie, walleye, northern pike, muskellunge, black bull-head, and rock bass are sport fish of lesser importance.
6.
Northern hogsucker, burbot, and channel catfish were species collected in 1982 but not collected previously.
It is believed that this is the first documented channel catfish captured in this area, 118
SITE l
(N E LSON'S LANDING)
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- p MONTICELLO NUCLEAR Ay '0 2
4 GENERATING PLANT U,
40 t
b lo SITE 2 r
g (TARZAN ELMS)
- SITE 4 (Ble OAKS PARK) g (DISCHARGE CANAL)
Figure 1 SITE ' 5 LOCATIONS OF. SAMPLING SITES FOR.THE MONTICELLO CREEL SURVEY N
SITE 6 (RIVER TERRACE TRAILER PARK)
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Table 1.
1982 Monticello Creel Survey.
Miscellaneous Statistics..
i
)
River i
Nelson's Tarzan Discharge Big Oaks Montissippi Terrace Landing Eles Canal Park Park Park SECTOR 1
1 3
4 5
6 TOTAL No Fisherman Counted 168 128 169 386 261 143 1255 No Instantaneous Counts 150 150 150 150 150 150 900 Mean No Fishermen / Count 1.1200 0.8533 1.1267 2.5733 1.7400 0.9533 8.3667 I
hf Estimated Fisherman-flours 2439.36 1858.56 2453.88 5604.72 3789.72 2076.36 18222.59 gN1 -. F7) i
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Table 2.
1982 Monticello Creel Survey.
Numlier of Fish and Real Overall Catch Rates Expressed as Fish / Hours for Species Caught.
Ngison's Tarzan Discharge Big Oaks Montissippi River Terrace Landing.
Elms-Canal Park Park Park Total I
i Ca ug h t /MHR Caught /MHR Ca ugh t /MHR Ca ugh t /MH R Caught /MHR Ca ugh t
/MHR Ca ugh t /MHR -
l Sector i Sector 2 Sector 3 Sector 4-Sector 5 Sector 6
'k Species Channel catfish 0
0.0 0
0.0 1
0.003 0
0.0 0
0.0 0
0.0 1-O'.000' Bluegill 0
0.0 0
0.0 0
0.0 3
0.005 0
0.0 0
0.0 3
0.001 Walleye 17 0.043 42
'0.135 43 0.119 15 0.023 40 0.072 10 0.038 167 0.066 Smallmouth bass 205 0.513 151 0.487 214 0.594 346 0.536 208 0.375 110 0.415 1234 0.487 Northern pike 7
0.018 5
0.016 4
0.011 8
0.012 12 0.022 16 0.060 52 0.021 White sucker 0
0.0 0
0.0 0
0.0 0
0.0 0
0.0 3
0.011 3
0.001 Crappie 0
0.0 2
0.006 68 0.189 35 0.054 25 0.045 19 0.072 149 0.059 Carp 24 0.060 36 0.116 27 0.075 21 0.033 27 0.049 23 0.087 158 0.062 Rock bass 3
0.008 1-0.003 7
0.019 12 0.019 4
0.007 1
0.008 28 0.011 Bullhead 0
0.C 0
0.0 4
0.011 2
0.003 6
0.011 9
0.034 21 0.008 Northern hogsucker*
O 0.0 0
0.0 0
0.0 0
0.0
- 1 0.002 0
0.0 1
0.000' Muskellunge 0
3.0 0
0.0 0
0.0 1
0.002 0
0.0 1
0.004 2
0.001 Burbot 0
0.0 0
0.0 0
0.0 0
0.0 0
0.0 5
0.019 5
0.002 Shorthead redhorse 47 0.118 6
0.019 12 0.033 35 0.054 54 0.097 13 0.049 167 0.066 Silver redhorse 1
0.003..
8 0.026 9
0.025 108 0.167 23 0.042 4
0.015 153 0.060 TOTAL 304 0.761 251 0.809 389 1.079 586 0.907 400 0.722 214 0.808 2144 0.846
=
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Table 3.
1982 Monticello Creel Survey. Number of Fish Caught and Real Sough t ' Ca t ch Rat es iar Species Sought Expressed as Fish / Man-Hours.
+
Nelson's Tarzan Discharge Big Oaks Montissippi River Terrace Landing Elms Canal Park Park Park Total Ca ugh t /MHR Caught /MilR Ca ugh t /MHR Caught /MHR Ca ugh t /MH R Ca ugh t
/MHR Ca ugh t /MilR Sector.1 Sector 2 Sector 3 Sector 4 Sector 5 Sector 6 Species Walleye.
3 0.073 30 0.286 13 0.139 1
0.023 3
0.047 5
0.120 55-0.141 Smallmouth base 175 0.669 97 0.651 169 0.971 334 0.684 163 0.516 96 0.688 1034 0.676 Northern pike 1
0.077 0
0.0 0
0.0 0
0.0 3
0.283 1
0.111 5
0.099 C
2 Crapple 0
0.0 0
0.0 61 5.865 25 2.941 22 1.774 14 1.772 122 3.112 w
Shorthead redhorse 0
0.0 0
0.0 0
0.0 16 1.455 8
0.667 0
0.0 24 1.043 TOTAL 179 0.448 127 0.409.
243 0.674 376 0.582 199 0.359 116 0.438 1240 0.489 i
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t a
l Table 4.
1982 Monticello Creel Survey.
Monticello-SIIERCO Angling Fressure and Catch Rate ( Pish /Ilour) for 1972 through 1979 and 1982.
4 1972 1973 1974 1975 1976 1977 1978 1979 1982 Speci_es Walleye
.005
.031
.083
.010
.010
.029
.029
.03,
- 066 Smallmouth bass
.081
.078
.050
.185
.078 1.233
.345
.469
.487 l
[
Northern pike
.006
.150
.023
.008
.006
.005
.008
.013
.021 l
White sucker
.006
.0018
.003
.024
.002
.002 Black Crappie
.014
.101
.104
.280
.010
.013
.251
.066
.059
.202
.078
.087
.103
.049
.082
.002
.007
.062 Carp Rock bass
.005
.003
.003
.020
.047
.011 Black bullhead,
.062
.053
.200
.026
.027
.040
.008 Shorthead redhorse
.003
.021
.00
,031
.018
.066
.008
.0
.016
.060 Silver redhorse
.001 Largemouth buffalo fish
.001
.001 Muskellunge
.002 g
83 Burbot
.00.
^
Channel catfish
.001 Northern hogsucker Total Catch Rate
.381
.508
.568
.64;
.i 1.398
.726
.776
.846 Total Fishing Pressure 2570 2435 3700 4929 5772 11674 8668 19942 18222
a s
I Table 5, 1982 Monticello Creel Survey.
Estimated Total Harvest Empressed as Number and Nilograms.
l Nelron's Tarzan Di s cha rge Big Oaks Montissippi River Terrace Total Landing Elms Canal Parks Park Park Weight Weight Sector i Sector 2 Sector 3 Sector 4 Sector 5 Sector 6 Total in Mean g cies Ca u<gt Ca_ught Caught __
Cau<gt
___ Caught Caught Caught Kilograms In _ Kilogram,s, Channel catfish 7
7 3.5
.500 Walleye 49 66 102 26 82 47 372 207.2
.557 Smallmouth bass 165 204 456 833 451 157 2266 881.5
.389 Northern pike 12 12 14 26 34 110 208 317.2 1.525 Crappie 6
456 234 157 133 986 112.4
.114 h Carp 7
17 14 78 116 192.9 1.663 Rock base 6
52 7
65 9.7
.149 Bullhead 9
25 30 3.3
.110 Shorthead redborse 14 152 103 16 315 224.3
.712 Silver redhorse 842 103 945 611.4
.647 TOTAL 232 288 1056 2247 972 541 5336 2563.4
,