ML20083N662
| ML20083N662 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 12/31/1983 |
| From: | Fey F NORTHERN STATES POWER CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| BWC040284GDW03, BWC40284GDW3, NUDOCS 8404190255 | |
| Download: ML20083N662 (107) | |
Text
- 4 I
Environmental 1
Monitoring and 1983 Ecologica Studies Annual
}
Program Report forthe Monticello Nuclear
.g.
Generating Plant e -.
. _.~xe H gx V
N
- g, a
~
,,,,,s 2 I
4 l llll!
-CW L
s**
7 DR ADO R
4
\\
0 f
. c.%
P.d.,'*k, e.:(:;9 gg"....
CONTENTS
- . A-.:...
h
$ i k.,
.:=-
i,,IL-
'J
'E (.:._.'.. L YE
- -7, PAGE
- e..-
. g., c
?rs, 3
. ~.
INTRODUCTION..............................................
i
- ; 2. f.c,.'
s
..h.J WATER MONITORING STUDIES Water Monitoring Summary (Physical Parameters).........
1 Water Monitoring Summary (Chemical Parameters)........
13 ECOLOGICAL STUDIES Electrofishing Survey.................................
49 Seining Study.........................................
93
INTRODUCTION
.v.
Two areas of ecological monitoring were conducted in 1983:
Water Quality and Fishery Studies.
The objectives of the water quality study were to determine if plant operation was altering certain chemical parameters within the river and to determine if
~
these changes (if any) had any ef fect on the fishery.
Because the Mississippi River near Monticello is a
large, turbulent stream with a boulder substrate, many conventional fish sampling methods are impractical.
Two techniques that have worked well for capturing specimens are electrofishing and seining.
Large fishes are efficiently sampled by electrofishing, and small species and young fishes are captured by seining studies.
The objective of the electrofishing and seining studies was to assess the relative abundance and seasonal distribution of fish in response to the plant discharge plume.
~
A creel survey was not performed in 1983, because it was deter-mined in 1979 to sample every third year.
The purpose of the survey is to document recreational usage and fishing pressure in the Mississippi River in the Monticello area.
This is the sixteenth consecutive report (thirteenth operation-al) summarizing environmental monitoring activities for the Monticello Nuclear Generating Plant (MNGP).
1 Science Services Section Environmental and Regulatory Activities Department Northern States Power Company (NSP) i
MONTICELLO NUCLEAR GENERATING PLANT FNVIRONMENTAL MONITORING PROGRAM 1983 ANNUAL REPORT E
WATER MONITORING
SUMMARY
(Physical Parameters) e Prepared for Northern States Power Company Minneapolis, Minnesota s
I by J. W. Weinhold Environmental and Regulatory Activities Department Environmental Sciences Section Northern States Pcwer Company 1
1983 MONTICELLO WATER MONITORING
SUMMARY
(PHYSICAL PARAMETERS) 9
...m The Monticello Nu clear Generating Plant (MNGP) had seven outages during 1983 (Table 1).
These outages accumulated to approximately 15 days of non-production time.
MNGP's on-line performance for 1983 was 96 percent.
Corresponding on-line -
operation for the MNGP from 1979 through 1982 is 98, 79, 72, and 65 percent, respectively.
Data are collected and tabulated hourly by the MNGP's compu-ter, which monitored plant intake (cfs),
river flow (cfs),
ambient water temperature (F'), and discharge canal tempera-ture (F').
These data were transformed into weekly averages and are listed in Table 2.
Average river discharge (flow) in 1982 was 5,760 cfs.
This index is higher than the 40-year average of 4,400 cfs, and reflects a higher " normal flow" during the summer months.
Two peaks in river discharge occurred in 1983:
March 8, 16,270 cfs and July 27, 14,920 cfs (Figure 1). The increase in March river discharge is due to spring snow-melt and run-off.
The July high discharge event was caused by above-average precipi-tation events in late June and mid-July.
Minimum river dis-charge of 2,800 cfs was observed on September 28.
The rate of water withdrawal from the Mississippi River by MNGP averaged 535 cfs during plant operational periods (Figure 1).
Ambient river water temperatures are illustrated in Figure 2.
Temperatures rose above 32* F around March 20, and reached a maximum of 82* F August 6.
Completien of the yearly tempera-ture cycle. occurred approximately December 20, when ambient water temperatures remained below 33'F for the balance of 1982.
3
Winter discharge temperatures during plant operation averaged s
a ppr ox ima te ly 72 F,
which is a iT of 40 F.
Ma x imum discharge temperature of 94.9 F occurred in May; the 2T at this time was 31.5 F.
Discharge t e mp e r a t u r e s throughout the summer months averaged 87.3 F,
with a mean AT of 12.3 F over ambient river water temperatures.
To map out the area affected by MNGP's thermal plume, four Mississippi River water temperature surveys were made on a six-kilometer reach of river downstream from MNGP.
These surveys were conducted in Fe br uar y, May, August, and November of 1983.
The warmest water during each of these surveys was on the Wr igh t County side of the river.
Figure 3 illustrates this effect for the month of Fe br u ary.
At the MNGP's outfall structure, the highest AT's were record-Tb ed in Fe br uar y, which was 29 F over ambient river water t emp -
i erature.
De v ia t ions from ambient water temperature at the outfall structure in May, Aug u s t, and November were:
18 F,
[7 6
F, and 10*F, re spec t i ve ly.
i mw D
In mapping the location and extent of the thermal plume
_g temperatures at the farthest downstreari transects, the AT's 2
2 were as high as 12* F dur ing the Fe bruary survey.
Th is eleva-tion of 12*F was encountered at two stations, with a mean AT of 5.4*F for the entire transect.
Th e highest station aT's on 7,
t the last transect in May, Augu s t, and' November were 7
F,
~
3.5 F,
and 7 F,
r e s pec t ive ly.
Th e mean transect aT's for N
these months were
- 2. 7 F,
1.3*F, and 2.1 F,
r e s pec t i ve ly.
'[--
y.
p 2
f:.
a e
a 4
xV 1
..p,
,% %j
+
Table 1.
1983 Monticello Off-Line Time ul.,#.
~
e.ta
- m..
- qq W' +~k
- b... f
.c * -
.t..?. Me
..3.
%. s. -p Aw(
b. k!
g:
g
~..
Date Off Date On
. A'Y:3
@$J.>.
-?
. -43 January 1 January 8 5, ' a..$
.. -,. s I
January 15 January 16
'I January 22 January 23 i
,y c kj,4 u
January 29 January 30 Jf'.gj N. 31 i
March 30 March 31
.4 f V,'-;.
May 21 May 23
- .v >:.k
'.fti November 26 November 27 k.- ~.,
.. (
- s 'h ly-1.
-;. i. :
5.
.b *
- g Nh,.g',..
t.'. h,.
- r .
i,0
- s
?;g _4(',.
?f_ g. '
N '
c.
3.4
- C A.
<a 1
/
5
i 5v I
Table 2.
Monticello Water Monitoring Summary (Physical Parameters) j Mean Weekly Values 4
$[O,.
2 River Plant Ambient Discharge y
Discharge Intake River Canal
(.gSh}
Week Beginning (cfs)
(cfs)
Temp (*F)
Temp (*F) if y.
g I.$'dd, January 1
5,870 7
32.49 35.83 8
5,394 459 32.21 60.46 I.V'.B r
15 5,271 535 32.17 69.37 A Kl..'c I
fB($
E 22 4,730 554 32.16 71.10 29 4,328 531 32.19 71.14
/
y 4
February 5
4,391 538 32.14 71.23 y
./
f#
1 12 4,472 530 32.41 73.69
?
19 4,772 535 32.43 73.24 f3 '94 E
26 5,830 556 33.17 70.46
- v. T 5 A
March 5
12,912 552 33.24 74.97
/'tV
'U ? ' l 52 12 12,929 528 33.87 75.80 h'jjff I
19 8,174 523 34.89 78.56
.k i 1.'
f 26 5,859 507 36.91 79.91 April 2
7,396 519 40.11 82.69 I
9 9,468 520 41.00 73.01
"'.E f
[*(
d(2.s 16 9,307 542 43.43 73.73 L
23 7,578 534 52.57 83.61 30 6,705 509 55.59 86.69 May 7
5,182 506 58.11 88.31 lE 14 5,342 498 57.09 83.30
?-
21 5,220 341 60.70 76.74 i-28 4,872 553 61.10 88.90 r
June 4
4,609 566 65.83 83.49 A
11 5,772 561 69.07 82.84
)
18 10,120 583 69.73 84.54 L
25 13,002 587 72.86 85.17 b
July 2
12,594 565 72.83 81.21 j
9 11,283 592 78.14 89.30 16 7,497 586 78.83 90.93 y
23 6,314 593 78.94 89.80 E
30 5,269 581 79.14 90.54
?
August 6
5,234 584 79.17 89.70 13 4,868 582 77.16 89.40
- r 20 4,081 578 76.21 88.57 s-M 27 3,860 577 78.50 90.41 September 3 3,397 571 73.73 86.56 10 3,989 556 65.84 82.87 17 4,304 548 57.19 85.81 m
1 24 3,398 544 58.93 87.07 1-F 6
M Table 2.
(Continued)
River Plant Ambient Discharge Discharge Intake River Canal
?
Week Beginning (cfs)
(cfs)
Temp (*F)
Temp (*F)
October 1
3,659 542 59.23 87.11 8
4,096 520 51.46 74.07 15 5,359 529 48.46 76.06 22 6,017 502 47.73 72.10 29 5,451 512 47.14 75.60 November 5
4,868 501 42.96 71.03 12 6,011 507 35.13 57.03 19 6,000 512 35.0 57.1 26 6,152 536 34.24 57.1 December 3
5,227 529 32.2 64.3 10 5,656 524 32.2 63.7 17 5,226 504 32.3 64.5 24 5,535 502 32.2 65.1 31 7,290 500 32.0 62.1 s
L" i'..
I
.?
7
.. ; c m_.._.__..__.___...._______.-_.__,
u 1983 MONTICELLO PHYSICAL PARAMETERS
.x RIVER FLOW AND PLANT I N T A K E :,. <'C F S) 33000 i
LEGEND
- g.
a 8
13500-
...~
..,.. t, 9.;..#.. arvaa pr e
. Y 1a000 -
-. --. riAnr inTAxe
~
10500--
.g 9000-
=
7500-U) k p
eOOO...
4sOO--
3000--
1b00 -
, - - - - - - - - - - - -,, - - - - - - - - - - - - - - - - - - - - - ~ ~ - - - -
I:.....:l:!
.....:1:1
,...:I:I I I:I
..:l:IJI:IJI:.:I
. g.
o_JI In l lo I
I I
lu I
I F
M A
A 8
0
.i
.-..i.....,,...
.,,, ; _ lll
r _
=-_
1983 MONTICELLO PHYSICAL PARAMETERS-AMBIENT AND DISCHARGlE I
WATER T E M P E R A T U R E S..J'.
2 n-LEGEND 9
108-4
- .i; ;
'< j
. i,.... IHTAIGE TEMP go.
,i
-~. DISCHARGE TEW f
g/~'~%
s\\
E
\\
l f'%
- g%.,# ~\\ #
g i
- < "g I
t 84-1 v
gi I
r,l\\
I s,
si l
t g
/
1 y 1A g
pg
(
vs, i
,s /
i-3 72 _.
s g
ui
/
i,
_s x
z
~
'i 3
50--
1 J
6J g,
8
?
K I
\\
us so- -s p.
1 l
E I
.=
\\
I ill I
I I
l-so-8 i
4
,1 2<.. /
t u
12-I l
o--rer erem erre e: : : :-e.-mer.-m re: : : : : : : : : : : : : : : : : : : : : :,
J f:
H A
H J
A S
O N
O g'
?
MONTH rrouae 2 1
n WATER TEMPERATURE O
GRADIENT IN "F o0" gc V.
(
so68*
l l
J I.
M N
, f,,
@et odis f
A2 we**y Go 3
4 e
a LEGEND v Discharge Canal
- = AT Degrees Fahrenheit (Above Ambient) d ,
- Data From February 22,1983 Temperature Study Monticello Nuclear Generating Plant
'sA%d ~ ?
-[.,..-jg s ; 2,"f.h.k,.- %._. !^..,,.., 3, d.s. Q.. g.g
< : L. '~
.-..,,... i'. ' v.'.:t 2 %.'&~ ~ '.'
. ] N '.
' *l4):'.k.Wc
'..?.g:.yf-}..);..$[.U..::,:;&.,p.'L!.'((.4.';k'C
- 5. * %% :'
.,.,..,.:^..:.,
~
'^
..ays
,' 'p.
..?
- .13
.j
. a..... f
...7 m.
c
~...
Figure 3 (Continued)
Y ag
- O g
's k
5.
i
.9-u) u)
- g i
U) 2
>b K
2 E
O D
O i
O 3
p O
\\
I
,O 2
B E CC
- a. g O
3.
CQ
.9-4 cr.
- p, W
q 1
O
,f 7 (f)
I
- -==
- HO1VV4 t
11
-.M
_1 E
8 8s 8
T.H. 25 Bridge e
q' SHERBURNE COUNTY j
5 i
r
=
i
. [
I
{
\\I, is 3f < C, l',
'7 j
is-r e.,
14 w'S e
x U
i h]jss'sssippi g;yg, ts 4
g O
O s
City,of Montice"o
,! f I ',.
~ WRIGHT COUNTY
~ ",
/!
,,jf,l
[
~
p 7
f 4
/
MONTICELLO NUCLEAR GENERATING PLANT ENVIRONMENTAL MONITORING PROGRAM 1983 ANNUAL REPORT WATER MONITORING
SUMMARY
(Chemical Parameters)
Y Prepared for Northern States Power Company Minneapolis, Minnesota by J. W. Weinhold Environmental and Regulatory Activities Department Environmental Sciences Section
~ Northern States Power Company 13
pen-m -
9 t
e y.
e 4
?
e f
s'
__m
.mm_,_
a_.
l DISCLAIMER Mention of brand and trade names within this' document does not constitute endorsement for use by Northern States Power Company.
E l
i-h
.15 n_
l'.
(.
i Zis Y
m 1983 MONTICELLO RIVER WATER (CHEMICAL PARAMETERS)
$m INTRODUCTION Chemical analysis of river water which is withdrawn and discharged by the Monticello Nuclear Generating Plant (MNGP) has b
been performed from 1968 through 1983.
The objective of this j
study is to ascertain any impact on Mississippi River water
}
quality by MNGP's cooling process.
The sampling sites were, the discharge canal, 300 meters upstream,and 300 meters downstream 4
from the discharge canal.
Samples were collected the last week of each month.
Sample collection and analysis were conducted by g
NSP personnel.
i 2
The following parameters were analyzed and are presented in 1
d comparative f orma t:
temperature, dissolved o xyg e n, specific conductance, pH, total dissolved solids, sulfate, P alkalinity, M
alkalinity, ammonia n i t'r oge n, nitrate
- nitrogen, nitrite g
nitrogen, total dissolved phosphorus, biochemical oxygen demand, j
and chloride.
1 i
MATERIALS AND METHODS 2
Samples were collected in one gallon containers once per month.
]E A Leeds and Northrup Model 7417 pH/ specific ion /mv meter and a Yellow Spring Instrument Company Model 33 S-C-T meter were used g
for field pH, specific conductance, and temperature measure-j ments.
Dissolved oxyg en samples were analy zed using the modified Winkler method.
Procedures for collection and analyses i
are outlined in US EPA Manual of Methods for Chemical Analysis of Water Wastes and APHA - ANWA - WPCF Standard Methods for
]
Examination of Water and Wastewater (14th Edition 1975).
]
s S+
]
7 17 I
3 n
1 l
RESULTS Results of the 1983 selected parameter analyses are presented in Table 1.
Mean monthly ambient river water values for 1968
{
through 1983 are in Table 2.
The overall average monthly values for ambient river water during this time period are presented in 1
Table 3.
Figures 1
through 14 are monthly compar isons between 1983 ambient Mississippi River water samples, 1983 MNGP effluent, and the 16-year averages for ambient water chemical determinations.
DISCUSSION Since 1968 analyses of selected river water quality parameters
]
have been performed.
The overview depicted in Table 3 suggests no trends of decreasing or increasing ambient river water quality in this reach of the river.
Cumulative monthly averages have been plotted for 16 years in Figures 1 through 14, and strongly suggest dynamic and predictable seasonal fluctuations of many. parameters due to
- chemical, physical, and biotic influence.
The 16-year ambient averages and the MNGP effluent parameters are displayed in a comparative format.
Figures 1 through 14 provide the analyst with these comparisons:
1)
Assessment of annual variability can be tested by comparing 1983 ambient water quality data with its 16-year average.
2)
A comparison of 1983 effluent data with 16-year mean ambient water quality may help assess the effect of MNGP's discharge.
i 18
hl 1
d
?ll y(
3)
Comparing 1983 ambient and effluent water quality data should directly account for any MNGP effect.
s Temperature g
b s
x Figure 1 reveals that 1983 was a typical year for ambient water d
temperatures.
River Water temperatures rose above 10*C in mid-j April and fell below 10*C in mid-October.
}
l As in previous years, deviation between ambient and discharge h
water temperature (AT) was highest when the river water tempera-3 e
g ture was below 20*C, at which time the MNGP cooling towers are not in operation.
On June 10, 1983, ambient Mississippi River water temperature rose above 20*C, and is noted in Figure 1, g
with an abrupt decrease in AT of approximately 5*C when the j
cooling towers were put into operation.
?
Conversely, when the cooling tower operat' ion was halted in j
October the AT's rose dramatically.
]
4 Dissolved Oxygen k
The dissolved oxygen content in ambient and MNGP discharge water f
I varied in proportion with the AT.
Figure 2 demonstrates this f
physical and chemic a i relationship by demonstrating little variation in dissolved oxygen during the warm water monthe of j
June, July, Augu s t, and September.
As the range between ambient 2
and discharge temperatures became greater, the warmer water held j
less dissolved oxygen.
l 9
Specific Conductance Q
i 4
In 1983 as in 1982, the difference between discharge and ambient i
levelsoof conductivity were negligible.
Figure 3 depicts an 3
overall elevation in conductivity in 1983, as compared with the i
16-year average.
}
19 e
?
=
Higher than average river discharge and probably additional r iver water. loading would account for this observation.
EE Discharge and ambient pH values varied little in 1983.
Dur ing the months of May, June, and July, the 1983 pH data decreased approximately one half of a pH unit from the year average.
The remainder of 1983 pH's approximated the historical data well.
Total Dissolved Solids Total dissolved solids seasonal measurements were near normal throughout most of.1983.
A slight decrease from the historical averages in total dissolved solids was observed in April.
Am-bient and -effluent values were closely correlated, showing'no effect of the MNGP discharge.
Sulfate
]
The 1983 values -for. sulfate varied with the 16-year ambient average.
A; chemical 'anomoly ~was observed in. the December sample taken.ups tream of. MNGP. -
The value of 25.mg/l as'SO4.is not e xtraor dinary,
however,.the deviation-from L the MNGP's discharge
- values of 12 mg/1'as SO4 suggests' analytical error.
M Alkalinity M Alk'alinityireadings f for 1983 closely approximated the histori ~
cal data dur ing the: months c of L January - through - June.
Th e ' Augu s t :
'through = December data.were notablyf higherJ 'than the ' 16-year
' average.
Ambient.and ^ discharge-measurements. varied ; toge.ther.,
x
- u i
- n -
'20 J'
4
--_-__=.___-__u-
___._.-___.._l-.-
n
i 9
Ammonia Nitrogen j
5 Discharge and amnient values for ammonia nitrogen varied little.
j Their seasonal values approximated the historical fluctuations,
{
however, the primary peak loading occurred in February instead of March.
The secondary peak loading was observed in July d
instead of June.
2 Nitrate Nitrogen Discharge and ambient values for nitrate nitrogen varied togeth-
[
er.
Their seasonal fluctuation closely followed the historical values, with a slight increase in concentration being observed in September, October, and November.
As with sulfate, the j
December upstream sample had en extraordinary high
- reading, 3
which also suggests contamination or analytical error.
Nitrite Nitrogen Y
i s
The concentration of nitrite nitrogen for the 1983 ambient and discharge analysis varied little.
The normal seesonal fluctua-tions, indicated by the 16-year averages, were followed by the 1983 data.
However, the 1983 February, June, and December con-j eentration levels were notably higher than the historical data 5
S (as depicted in Figure ll).
Dissolved Phosphorus d
5 With the exemption of February and November, the 1983 values for i
dissolved phosphorus varied little.
February and November MNGP j
discharge values indicate higher concentrations of dissolved phosphorus (Figure 12).
These values appear to be MNGP-induced.
Excluding - these values, the 1983 dissolved phosphorus concentra-tions follow normal seasonal variations (indicated by the 3
I 16-year average).
21
Biological Oxygen Demand Biological oxyg en demand values for the MNGP discharge were higher in July and lower in September than the ambient concen-trations.
Excluding these values, generally, the ambient and discharge indices approximated the seasonal cycle of highest demand in April, and then gradually declining throughout the remainder of the year.
Chloride Ambient and discharge values for chloride varied little in 1983.
These concentrations where slightly higher than the historical indices.
In previous water quality studies, occasional MNGP influence has been noted in conjunction with this parameter.
Chlorine is used in MNGP's cooling process as a biocide, and its precursor was responsible for the elevated chloride levels.
In 1983 no such influence was noted.
SUMMARY
Seasonal concentration variations of selected parameters have been documented for a period of 16 years.
Average valuas for specific conductance, total dissolved
- solids, M
alkalinity, nitrite nitrogen, and chloride were slightly higher in 1983 than the historical average.
Ammonia nitrogen concentrations were slightly less than are predicted by the historical indices.
MNGP discharge values for dissolved phosphorus in February and November were greater than the corresponding ambient river water indices.
MNGP-discharge values for biological oxygen demand were higher in April and less in September than the correspond-ing ambient river water values. Caution should be used in the interpretation-of these findings (e.g.,
program design, samp-ling, and analytical error), however, they do suggest a slight impact on the Mississippi River system at the point of the MNGP discharge.
22
LITERATURE CITED US EPA Manual of Methods for Chemical Analysis of Water Wastes.
APHA-AWWA-WPCF Standard Methods for Examination of Water and Wastewater.
14th Edition 1975.
Report of the Committee on Water Quality Criteria.
FWPCA US Department of the Interior.
1968.
p,uality Criteria for Water.
US Environmental Protection Ag ency,.197 6.
k _~ -
L k
L
-23 l
I T2hl2 1.
Enticelle Mic 19sippi [iver Wat7r Quality Stanty 1923 Itpatrian, Duwn: tram, cnd Discharge C:nal An31yEla Temperature.*C Dissolved Oxygen Specific Conductance pH mg/l 02 shos/cm at 25*C Discharge Discharge Di scha rge Di scharge tipstream thwns t ream canal teatream Dtwnstream canal tipstrean. Ekwnstream canal tipstream tawnstream canal January 0
4 18-14.5 12.9 12.4 384 390 365 7.8 7.8 7.9 February 1
7 10 14.1 13.5 11.5 360 365 364 7.8 7.8 7.9 March 3'
9 17.5 14.5 13.3 10.5 339 351 338 8.4 8.1 8.3 April 11 18 25 18.7 10.7 9.2 285 288 286 7.9 7.9 7.9 May 96 18 -
28 10.0 8.7 309 324 313 7.7 7.7 7.5 June 23 25 28
- 7. 3 -
7.5 7.6 284 286 290 7.6 7.6 7.6 July 26
'28 31 7.8 8.0 8.1 333 340 337 7.8 7.8 7.8
-August 26
. 28 32 8.3 8.7 7.3 332 353 335 8.2 8.2 8.2
- September 17 17 27 11.3 10.2 9.6 365 383 366 8.1 7.7 8.0 October 9
14 19 82.0 18.2 80.8 338 342 340 8.5 8.2 8.1
' November O
7 25 14.1 12.5 18.6 387 3H7 377 7.6 7.6 7.6 December O
9 18 '
52.5 11.5 10.2 409 377 369 7.9 8.5 8.2 Total Dissolved Solide Sulfates P Alkalinity M Alkalinity eq/1 mg/l SO4 mg/L CACO 3 mg/l CaC04 Discharge Discharge Discharge Discharge tipstream ~ Duwnstream canal Ilpetream Dcuns t ream canal tips tream Downstream canal Ilpa tream Lawnstream canal Janua ry 220 230 220 8
9 9
0 0
0 17,4 188 174 i
Februa ry 220' 220-250 11 to 10 0
0 0
169 171 168 March..
210 710 200 11 11 to 0
0 0
154 468 152 April 140 170 170 9
9 9
2 2
2 128 130 128 May 190 200 190 9
9 81 2
0 1
144 149 142 J une -
190 180 180 7
9 8
0 0
0 128 128 128 July 210 210 210 7
7 7
0 2
4 153 154 156 August 190 200 190 10 9
to 3
2 4
153 458 155 september 220 220 220 Il to il 0
0 0
167 171 867 October-200 200 200 8
9 10 0
0 0
553 154 154 Nove ml>e r 220 220 250 9
10 8
0 0
0 168 167 167 Decent.o r 250
.220 220 25 11 12 0
0 0
170 174 468 i
l i
1
Table 1.
(Continued)
Ammonia Nitrogen Nitrate Nitrogen Nitrite Nitrogen Tutal Dissolved Phosphorus ag/l N og/l N mg/l N mg/l P Discharge Discharge Olscharge Discharge Upst ream. Ikwns tream canal-t$ stream Duwnstream canal potream Dtwns tream canal E$ stream lawns tream
_ canal January 0.11' O.07
~ 0.'11 0.46 0.43.
O.46.
0.005 0.005 0.005 0.01 0.02 0.01 February 0.17 0.12-0.17 0.54 0.55 0.53 0.014 0.'015 0.015 0.04 0.03 0.06 March ~ '
O.09 0.04 0.06 0.50
'O.50 0.47 0.016 0.015 0.011 0.02 0.02 0.02 April-0.06
- 0. 02.-
0.07 0.04 0.05 0.04 0.007 0.007 0.006-0.01 0.01 0.01 i
Ma y,..
0.07 0.04 0.06 0.15 0.21 0.15 0.018 0.018 0.019
<0.01 0.01 0.02 Junn.
0.11 0.09 0.10 0.34 0.34 0.32 0.020 0.022 0.028 0.08 0.06 0.08 July,
0.12 0.12 0.09 0.27 0.32 0.27 0.000 0.085 0.008 0.05 0.06 0.06 j
August 0.05:
0.21 0.05 0.22 0.49 0.24 0.007 0.064 0.007 0.04 0.05 0.05
-September
<0.02 0.27 0.05 0.32 0.61 0.33 0.000 0.035 0.000 0.03 0.03 0.04 October 0.02 0.06 0.05 0.30 0.33 0.28 0.007 0.009 0.007 0.02 0.02 0.03 Not sdwer -
0.03 0.13
- 0. 0.1 0.58 0.68 0.54 0.011 0.082 0.010 0.03 0.03 0.07 December 0.07 0.21 0.07 1.15 0.53 0.42 0.011 0.015,
0.042 '
O.03 0.02 0.03 I-Hielogical oxygen Demand
- Chloride, aq/1 02 og/l Cl Discharge Discharge Itpatream Druns tream canal Upstream Downstream canal Ca m
Ja nua ry 1.8 1.0 0.7 5
7 7
February.
2.1 1.8
't.5 6.
5 3
March 1.5 1.6 1.4 7
7 6
' April
. 3.4 2.9 3.4 5
6 6
May 2.3 2.5 2.5 5
8 5
June 2.7 2.6.
2.4 7
6 6
' July 2.8 3.0
.3.4 8
6 5
August 1.9 3.0
' 2. 2 7
to 5
September 1.8 2.4 0.8 10 11 6
October 1.3 1.3 1.3 11 11 12 November 1.2 1.1 1.0 11 8
to
- December, 0.5 l.0 0.6 9
7 7
9
T;b13 2.'
MonticO110.MICciC31ppi Riv;r Watcr Quality. Study Morn Monthly Data for 1968 -11983 Upatream Analyr.io.
Jan M
Mar M
Nay June July Ay -
Sept Oct Nov Dec Temperature *C 0
1.0
- 1. 8 9.2 17.7 22.2 24.3 21.2 14.4 7.7
- 1. 0 0
Dissolved Oxygen 11.2 11.2-11.4 10.8 9.1 8.2 8.3
- 8.7 9.4 11.8 12.1 12.1 mg/l 02 Specific Conductance 349 349 316.
250 276 276 286 318 298 291 303 339 shos/cm 1
pH 7.9 7.7 8.0 8.1 8.2 8.2 8.2 8.3 8.3 8.2 8.1 d.0 TDS mg/l
~210 214 194 160 168 161 185 184 196 184 188 206
' Sulfate og/l SO4 11.1 9.9 11.0 11.8 8.8 10.7 9.5 8.9 10.8 10.9 10.5 12.8
'P Alkalinity mg/l
~0 0
0.3 1.1
- 1. 6 2.4
- 1. 8 4.7
- 3. 2 2.6
- 2. 2 0
CACO 3 M Alkalinity ag/l 167 169-151 120 133 135 141 139' 146 138 145 141 l
CACO 3 l~
Ammonia Nitrogen 0.16 0.15 0.25 0.10 0.09 0.11 0.03 0.07 0.04 0.06 0.08 0.12 ag/l N w
1 Nitrate Nitrogen.
0.63 0.48 0.47 0.18 0.20 0.39 0.25 0.24 0.19 0.15 0.27 0.43 mg/l N Nitrite Nitrogen 0.008 0.010 0.009 0.005 0.008 0.009.
0.007 0.007 0.005 0.007 0.009 0.009 mg/l N Dissolved Phosphorus 0.044 0.039 0.058 0.030 0.026 0.044 0.061 0.052 0.038 0.021 0.025 0.033 mg/l P BOD mg/l 02
- 1. 5 1.36 2.24 2.87 2.27 2.25 1.97 1.59 1.45 1.44 1.57 1.29 Chloride og/l C1 3.9 4.2 4.3
- 2. 5
- 3. 2 4.6 3.5 4.0 5.9 4.7 4.9 5.5 u__
Table 3.
Monticello Mississippi River Water Quality Study 1968 - 1983 Monthly Ambient River Water Analysis.
f Jan Fe b Ma r Agr May June July Aug Se p t Oct Mov Dec l
Temperature
'C-69 0
0 0.8 0.3 15.6 19.2 24.9 22.7 14.2
- 3. 5 0.8 0.3 70 0.5 0.6
- 2. 7 1.2 11.6 22.2 23.8 23.6
- 3. 9 71 0.1 9.2 0.6 0.1 l-72 0.1 0.2 0.3 6.1 19.9 24.8 21.9
- 1. 2 l
73 0.2 5.5 2.2 9.1 20.6 20.2 11.2 10.6 0.9 1.0 74 0.2 0.3 0.2 13.0 16.0 20.5 23.0 18.5 14.5 9.8 0.3 0
75 0
0 0.2
- 2. 5 17.5 23.3 24.0 20.8 13.9 7.4 0
0.5 76 0
1.0 2.8 14.5 19.5 22.0 28.0 20.2 15.0 6.0 0
0 77 0
0 3.0 16.0 23.0 24.0 23.5 21.0 15.0 10.0 0
0 78 0
0
- 1. 0 8.6 16.0 24.0 25.5 21.5 19.0 7.0
- 1. 0 0
1 79 0
5.0
- 2. 0 11.0 17.0 19.0 23.9 18.9 15.6 7.8 3.3 0
80 0
0 0
14 24 24 23.5 19 12 9
0 0
81 0
1 8
11.5 17 24 24.5 21 12 4.5 3
0 i
82 0
0 0.5 11 17.5 24 24 21.5 13 8
0 0
l u
83 0
- 1. 0 3
11 16 23 26 26 17 9
0 0
on
-Do ag/l 02 68
-12.8 9.3 11.2 11.6 10.2 8.3 7.4 7.8 10.7 15.8 9.3 69 8.0
- 9. 9 12.4 9.7 9.1 7.0 9.2 10.5 13.4 13.2 12.1 l
70
- 7. 8 10.1 9.8 12.1 9.2 7.1 8.5 9.4 11.3 l
71 12.2' 10.1 9.1 12.9 72 13.4 8.4 13.6 10.4 9.9 8.2 13.4 73 10.5 12.2 12.8 10.4 12.6 9.4 10.2 10.6 12.6 74 10.6 9.1 8.9 10.8 9.2 8.0 10.7 9.5 13.6 15.0 10.6 75 12.9' 8.4 13.2 4.9
- 6. 6 6.5 9.0 8.0 11.2 8.2 10.0 76 11.6 13.0 12.2 8.0 10.0 8.9
- 7. 3
- 7. 5 9.2 10.8 4.0 11.0 77 6.5 9.25 10.0
, 8.70 8.0 8.6 9.5 6.1 7.1 11.0 12.0 13.4 78 10.0 11 12 12,7 10.9 5.4 10.8 9.0 8.9 12.4 13.2 11.3 79 15.6 12.0 10.5
. 8. 6 8.8 9.4 8.1 8.7 8.6 11.4 12.8 13.4 80 11.8 12.9 12.0 10.3 10.1 10.4 8.4 8.0 10.6 12.8 13.5 13.0 81 11.8 12.3 12.8 11.5 8.1
- 7. 5
- 7. 9 6.8 9.3 12.0 13.0 13.3 82 10.5 11.6 12.5 10.2 9.4 8.2 7.5 9.6 10.9 12.0 15.0 14.6 83 14.5 14.1 14.5 11.7 10.0 7.3
- 7. 8 8.3 11.3 12.0 14.1 12.5 O
h
e d'
F G
Table 3.
(Continued).
Jan Fe b M
.g g
June July Aug Sept Oct Nov Dec l
Spect'fic
[.
. Conductance
, 400 371 324 294 271 223 256 323 286.
286 263 333 l'
mhos/cm 9 25'c 68 i
69 308 322 323 206 263 283-294 278 369 286 286 317 l
70
'303 337 336 320 213 282 287 305 286 323 71 328 200 238 112 72 333 364 323 250 270 294 204 246 263 73 350 350 240 286 272 244 278 222 290 333 74 333 350 350 192 240 233 286 290 308 312 274 333 75 323-345' 325 213 247 275 234 300 298 308 307 330 76
'330-340 295 270 335 315 310 340 340 350 420 440 77 440 420 330 340 309 260 305 290 270 265 294 328 78 360 364 298 235 305-275 260 550 270 280 320 350 79 340 360 360 197 248 300 300 320 280 340 320 80' 248 231 232 237 325 350 340 350 240 250 250 220 81 395 385 295 280 290 290 286 286 330 260 305 367
- !o 82 394 364 377 200 244 304 317 316 314 280 323 350 83.
384 360 339 285 3c9 284 333 332 365 338 387 409 pH 68 8.0 8.0 7.8 8.6 8.6 8.3 7.7 8.1 8.5 8.1 8.3 7.8 69 7.7-7.55 7.55 7.65 8.0 8.5 8.0 8.2 8.3 8.3 8.3 8.05 70 7.75 7.0 7.9 7.8 7.85-8.25 8.1 8.5 8.5
- 7. 8 71' 7.4 7.7 7.8 7.7 72 7.8 7.5 7.9 8.0 8.3
- 7. 7 8.0 8.1 73 7.7 7.9 8.0 8.5 8.4 8.1 8.3 7.9 8.2 7.9 74 7.95 7.4
.8.1 8.15 8.1 8.2 8.25 8.6 8.6 8.6 8.25 8.1 75 8.0 7.7 8.1 7.8 8.2 8.2 7.95 8.55 8.2 8.3 8.5 7.95 76 7.95 8.15 7.85 8.3 J.6 8.75 8.75 8.70 8.70 8.85 8.40 8.00 77 7.90-7.75' 8.15 8.70 8.75 8.65 8.80 8.65 8.25 8.30 8.10 8.05 78
. 7.3 7.8 8.0 8.4 8.1 8.2 8.1 8.0 8.0 8.4 8.4 8.2 79 8.8-7.6 7.7 0.0 8.1 8.1 8.0 7.9 8.5 8.2 7.9 8.4 80 7.3 7.7 7.7 8.1 7.9 8.4 8.6 8.6 8.5 7.9 8.0 8.5 81 8.0 7.9 8.0-8.5 8.1
- 7. 8
- 7. 9 7.4
- 7. 8 8.1 8.3
- 7. 9 82 8.0 7.8 8.4 8.1 8.1 8.4 8.1 8.7 8.2 7.9 7.8 7.8 83 7.8 7.8 8.4
- 7. 9 7.7 7.6 7.8 8.2 8.1 8.1 7.6
- 7. 9
\\
Table 3.
(Continued)
Jan
' Fe b Mar M
M-June
' July g
Sept Oct Nov Dec Total Dissolved Solids. ng/l 68 233.
230 201 211 109
'213 187 187 211 83 183 104 69 183 176 190 142 143 179 179 164 182 173 180 190
'71 201.3 166
~
191 209.5 182.7 197 196.2 70 170 235.2 183.2 202.4 151 167 198
.7 2 '
200 276 209 155 190 186 145 182 165 73 200 205 142 169 167-165 206 152 157 182 74 208
.194 T215 125 135 148 179 200 190 184 170 196 75 178 191 197 125 146-157 159 159 171 175 177 187 76 193 204 171 161 204 187 179 205 194 203 237 257 il;,
77 250 242 199 217 213
'193 196 178 182 185 201 207 78 240 178 178 164 194 191 180 160 190 210 190 160 79 210 230 200 130 150 190 200 180 200 200 170 170 80 220 210 220 150 190-200 210.
200 200 180 200 250
- g 81 240
~ 220 190 170 170 200 190 190 210 170 190 230 82 200 210 200 130 170 170 180 210 190 170 200 200
-83 220 220 210 L140 190
,190 210 190 220 200 220 250 Sulfate mg/l so4 68 15.0 5.0 5.0 15.3 0
10 10 15 15 12.5 10 15 69 10.0 12.5 12.5 10.0 7.5 15 10 7.5 7.5 12.5 8.8 8.0 70
' 5. 7
. 8. 7 7.5 6.0 9.0 5
6.1 10 9.1 9.1 71 7.6 8.6 10.75 9.8 72 20
. 7. 8 15.
30 10 15 7.13
- 6. 6 10 73 10.7 5.3 6.0 7.9 10.4 6.2 9.1 7.8 12.5 14 74 13.5 12.6 12.5 8.75 8.0 9.0
- 6. 3 7.9 9.2 8.5 8.9 75
- 7. 8 6.8 8.2 7.8 7.1 7.3 5.3
- 7. 4 6.4 7.7 8.2 8.0 76 7.8 7.9 9.0 12.5 10.4 12.6 16.0 19.4 21.5 17.4 23.6 24.0 77 22.4 20.5' 25.0
-24.5 15.5 16.0 11.2 14.0 14.8 13.9 8.2 16.0 78 9.5 11.0 10.4 11.25 11.9 18.7 16.7
- 2. 0 11.0 10.0 10.0 8.0 79 9.0 10.0 13.0 9.0 10.0 8.0 7.0 5.0 9.0 12.0 11.0 7.0 80 9-11 8
.8 9
8 13 13 12 15 81 11 10 11-11 9
9 9
7 8
8 7
10 82 7
10 10 9
7.
9 7
8 8
9 9
10 83 8
11 11 9
9 7
7 10 11 8
9 25 e
m
m ;-
J Table 3.
(Continued)
Jan Fe b Mar M
M June July g
Sept Oct Nov g
P Alkalinity 68 0
0 0.
2 2
0 0
14 1
0 16 0
ag/l CACO 3 69 0,
0 0
0 0.
4 3
16 6
8 6
0
'70 0
0 0
0 0
6 0
6 8
0 71 0
0 0
0 72 0
0 0
0 0
0 0
0 0
73 0
0 0
2 3
0 0
0 0
0
'74 0
0 0
0 0
0 0
0 12 9
0 0
75 0
0 0
0 0
0 0
7 0
0 6.5 0
76 0
0 0
0 6
8 7
10 9
9 2
0 l
77 0
0 0
5 6
4 6.5 5
0 0
0 0
l 78 0
0 0
2 0
0 0
0 0
2 0
0 I
79 0
0
.0 0
0 0
0 0
0 0
0 0
-80 0
0 0
0 6
6 5
5 4
6 4
0 81 0
0 4
4 0
0 1
0 1
0 0
0 u,
P' 82 0
0 0
0 0
5 2
5 4
0 0
0 83 0
0 0
2 2
0 0
3 0
0 0
0 M Alkalinity 68
.198 177 138 111 116.
96 124 144 142 120 124 152
. ng/l CACO 3 69 148
-144 164 86 128 128 144 148 148 148 148 159 70 148 164 164 152 108 136 160 156 160 162 71' 168 90 114 148 72 160 170 161 116 136 138 138 105 138 128 73-164 180 106 134 138 117 149 106 139 159 74 164 164 165 91 111 112 141 140 153 149 128 159 75 152 159.
159 164 118 134 118 145 149 146 154 164 76 166
.- 16 3 -
134 130 165 154 146 157 153 159 191 207 77 201 188 137 154 161 145 137 131 121 121 134 161 l'
-78 178 177 136 115 143 129 126 86 109 128 141 114 79 129 164 160 86 124 140 138 151 151 167 139 167 80 174 176 169 133 157 169 161 159 154 159 156 180
.81 182 175 147 142-130 134 133 140 151 117 147 176 82 166 171 172 90 114 143 150 148 146 121 144 161 83 174 169 154 128 144 128 153 153 167 153 168 170 r
~..
Table 3.
(Continued)'
Jan Fe b Mar' Apr g
June.
July g
Sept Oct Nov Dec Ammonia Nitrogen og/l N 68
. 0. 2 0.25 0.55-0.49 0.33 0.7 0
0.33 0.28 0.49 0.5
~ 0.44 69
~0.2.
0.26 0.98 0.44 0.38 0.26 0.17 0.15 0.0 0.14 0.07 0.04 70 0.13' O.09 0.06 0.03 0.04 0.08 0
0 0.07 0.01
.71 0.19 0.22' 0.12 0 72 0.12 0.05 0.01 0.04 0
0 0
0 0.28 73 0.06 0.04 0
0.03 0
0.05 0
0 0
0.09 74 0.03
- 0. 0 0.01 0.01 0.05 0.03 0.01 0
0 0
0.04 0.09 75 0.16 0.15 0.20 0.15 0.01 0.08 0
0 0
0.01 0.03 0.10 l
76 0.11 0.14 0
0.06 0.0 0
0.03 0.01 0
0.02 0.38 77 0.54 0.43 0.32 0.01 0.03 0
0 0.01 0
0.02 0.08 0.09 l-78 0.13 0.08 0.56 0
0.11 0.02 0
0 0
0 0
0.20 I-79 0.27 0.16 0.25 0
0.06-0.01 0
0.06 0
0.02 0.01 0
80 0.09
'O.11 0.34 0.01 0.01 0.04 0.04 0.14 0.04 0.03 0.01 0.06 O
81 0.07 0.09-0.04 0.05 0.06 0.09
<0.01 0.12 0.10 0.02
<0.02 0.12 82 0.15 0.22 0.18 0.01
<0.01
<0.01 0.06 0.03
<0.02 0.06
<0.02 0.06 83 0.11 0.17 0.09 0.06 0.07 0.11 0.12 0.05
<0.02 0.02 0.03 0.07
' Nitrate Nitrogen og/l N.
68
- 1. 0 3.58
- 1. 7 0.45 1.2
- 1. 2
- 1. 2 0.45 1.67 1.4 1.93 69 1.93 4.8 1.93 0.45 0
0.68 0
0 0.22 0
0.4 0.44
'70 0.44.
0.97 0.50.
- 4. 7
- 0. 7 0.97 0.4 0
0.06 0.14 71 0.25 0.37 0.3 0.25 72 1.75 0.28 0.225 0.25 0.27 0.20 0.05 0.24 0.25 73 0.25' O.65 0.3 0.05 0.07 0.42 0.28 0.23 0.15 0.5 74 0.4 0.55 0.35 0.15 0.4 0.3 0.15 0.12 0.07 0.12 0.18 0.30 75 0.3 0.21 0.35 0.51 0.10 0.35 0.54 0.12 0.18 0.12 0.48 0.30 76 0.3 0.4' O.45 0.15 0.05 0.58 0.15 0.20 0.07 0.05 0.25 0.40 77.
0.4 0.48 0.57 0
0.01 0.02
<.01 0.11 0.30 0.15 0.30 0.35 78 0.38 0.42 0.59 0.08 0.15 0.24 0.06 0.24 0.20 0.08 0.22 0.37
'79 0.41 0.44 0.97 0.15 0.09 0.17 0.25 0.16 0.09 0.11
- 1. 5 0.33 80 0.45 0.54 0.65 0.10 0.17 0.11 0.01 0.16 0.21 0.09 0.10 0.50 "81 0.54 0.57
<0.01 0.02 0.15 0.23 0.38 0.22 0.21 0.19 0.26 0.41
-82 0.39 0.47 0.64 0.13 0.12 0.02 0.17 0.12 0.05 0.16 0.17 0.25 83 0.46 0.54 0.50
'O.04 0.15 0.34 0.27 0.22 0.32 0.30 0.58 1.15 e
..a
l
. Table 3.
(Continued)
Jan Fe b Mar Apr M
June July g
Sept Oct Nov Dec Nitrite Nitrogen ug/l N.
68 l
69 l l 71 f.
72 73
[
74 75 76 77 I
78 0.010 0.007 0.002 0.003 0.006 0.007 79 0.008 0.007 0.008 0.006 0.004 0.008 0.011 0.006 0.004 0.007 0.010 0.011 80 0.008 0.010' O.010 0.005 0.008 0.004 0.003 0.007 0.004 0.007 0.007 0.010 81 0.013 0.010 -0.004 0.004 0.007 0.012 0.007 0.008 0.006 0.009 0.012 0.006 82 0.008 0.008 0.008 0.005 0.005 0.001 0.004 0.005 0.004 0.006 0.009 0.007 w
83 0.005 0.014 0.016 0.007 0.018 0.020 0.008 0.007 0.008 0.007 0.011 0.011 Total Dissolved 68 Phosphorus 69 mg/l P 70 9.048 0.040 71 0.053 0.026 72 0.047 0.035 0.065 0.050 0.044 0.019 0.061 0.059 0.036 73 0.031 0.034 0.063 0.008 0.037 0.036 0.036 0.007 0 0.027 74 0.027 0.036 0.028 0.029. 0.028 0.012 0.016 0.057 0.044 0.025 0.023 0.038 75 0.034 0.016 0.016 0.071 0.013 0.055 0.079 0.047 0.022 0.019 0.022 0.032
-76 0.042 0.056 0.065 0.025 0.027 0.020 0.100 0.062 0.070 0.017 0.020 0.052 77-0.085 0.064 0.045 0.019 0.034 0.041 0.095 0.036 0.052 0.031 0.033 0.033 78 0.039 0.040 0.109 0.040 0.048 0.057 0.067 0.066 0.053 0.017 0.011 0.026 79 0.076 0.042 0.062. 0.030 0.02 0.04 0.04 0.06 0.07 0.01 0.02 0.02 80 0.050 0.02 0.14 0.02 0.02 0.06 0.09 0.06 0.03 0.02 0.01 0.03 81 0.04 0.04 0.01 0.03-0.02 0.09 0.05 0.05 0.03 0.03 0.02 0.03 0.01 0.05 0.05 0.02 0.03 0.03 0.04
'82 0.05 0.03 0.07 0.03 83 0.01 0.04 0.02 0.01
<0.01 0.08 0.05 0.04 0.03 0.02 0.03 0.03
- Sample ' Lost
l Table 3.
(Continued) l Jan Fe b Mar M
M June July
,g Sept Oct Nov Dec
'Hiochemical.
68 1.35 0.55 3.18 3.48 2.55.
- 1. 2 1.1 1,67 1.45 1.53 2.1 1.25 Oxygen Demand 69 1.62 1.35 2.50 2.00
- 1. 9 1.4 0.90 1.10 1.60
- 2. 0
- 1. 0
.mg/l 02 70 1.70 1.70 1.80 3.40 1.80 2.1
- 3. 4 3.80 1.15 2.1 71 1.6 1.8 2.0 72 0.9 1.1 1.4
- 1. 6 1.9
- 2. 3 1.5 2.8 73 0.7 1.4 2.3
- 1. 3 2.02
- 1. 3 1.5
- 1. 5 1.35 74 1.0
- 1. 5 2.0 2.45-1.6
- 2. 5
- 1. 2 0.9 0.9 1.0
- 1. 3 0.9 75
- 1. 3 1.6
- 1. 3
- 2. 9
- 1. 5
- 1. 2 1.0
- 2. 7
- 0. 9
- 1. 0
- 1. 7
- 1. 3 76 3.1 0.8 1.5 3.1 -
3.0
- 1. 7 2.0 2.3 1.4 0.7 77 1.3 1.3 4.0
- 3. 9 3.1
- 3. 2 1.6
- 1. 2 1.1 78 3.0
.1.2 3.4 1.66
- 1. 7 2.1
- 1. 6
- 1. 6 1.6 1.4
- 1. 4 0.4 79
- 1. 3
- 2. 2 2.1
- 1. 8
- 1. 3 0.2
- 1. 5
- 2. 7
- 1. 5 2.0 80 0.9 0.9
- 3. 0 4.4 3.1 4.0
- 3. 6
- 2. 0 2.1
- 1. 0
- 3. 7 l-81 1.4 0.9 4.4
- 3. 3 3.0
- 2. 5
- 1. 8 1.6 0.9
- 1. 5 1.1
- 1. 2 l-w-
82
- 1. 3
- 2. 6
- 2. 3 2.4
- 1. 6
- 2. 3
- 1. 6 0.2
- 1. 5
- 1. 2
- 1. 3 0.5 l
83 1.1 -
2.1
- 1. 5 3.4
- 2. 3
- 2. 7
- 2. 8
- 1. 9
- 1. 8
- 1. 3
- 1. 2 0.5 Ct.loride 68 5.34 9.0 1.4
- 3. 7 7.12 5.34
- 2. 5
- 2. 0 4.0 3.0 11.8
- 5. 3 mg/l Cl-69 3.56 4.5 8.9 0.89 0.5 7.12 0.48 0.42 0.6 0.48 0.88 0.48 70 0.70 1.1 1.1 1.30 0.4 0.90 0.70
- 1. 6
- 1. 0
- 1. 2 71-1.4 0.7 0.6 9.4
/2 0.88
- 1. 4 -
7.12-0.43
- 3. 6
- 5. 3 0.23 0.26 0.24 73 0.57 0.34 0.46 0.27 0.54 0.46
- 1. 5 0.31 0.46 0.72 74 0.92 80 0.83 0.55 0.57 0.30 0.59 4.0 5.0 1.4 0.97
- 1. 2
-75 1.04
- 1. 4 1.2 0.55
- 0. 5 0.41 0.26 0.77 0.56
- 1. 0 0.6
- 0. 4 76 1.10 1.0
- 1. 3 0.70 1.3 6.0 5.0 6.0 7.0 8.0 9.0 8.0 77 8
9-6 5
4.5 8.5 6.0 6.0 6.0 4.0 5.0 8.0 78 5-1.3-
- 1. 8 1.17-0.69 0.78 0.8 3
4 5
6 6
79 6
12 8
4 5
4 7
8 8
12 7
9 80 10 5
8 5
6 8
8 10 19 9
11 8
81 7
8 4
6 6
4 5
4 6
2 4
4 82 4
5 7
5 4
6 7
7 10 4
8 7
83 5
6 7
5 5
7 8
7 10 11 11 9
1983 MONTICELLO MISSISSir R I V E R.,-
WATER QUALITY STUDY.
TEMPERATURE (C)
LEGEND l
1 35- -
1968-1983 HEAN AMBIENT l
7'
\\
1983 AMBIENT f
(
30--
7 f--
/
\\
1983 MNGP DISCHARGE
/
\\
(
/
,- ~ ~ ~ s n
\\
f o
25-f s
i j\\
v m
/
- i. -
t a
n
/
i w
t x
,i
.s
\\/
3 20--
/
./,
s
\\
r s
. \\
g t
/
i E
.s y
w
\\
/
e
\\
./
n.
15--
\\
1
.g s
I f
\\/
.\\
O i.
\\/
,/-
\\,
t
~
no-1
.s 1.
.s 1
.s i.
.s 5--
/-
1 1.
g 4
,s.
\\.
- ,/
1-. u o
JAN FEB HAR APR MAY JUN JUL AUG SEP 00T. NOV DEC MONTH FIGURE 1
1983 MONTICELLO MISSISSIPPI RIVER WATER QUALITY STUDY.
DISSOLVED OXYGEN ao LEGEND 18--
1958-1983 MEAN AMBIENT ge..
1983 AMBIENT 5
d 14--
~~'s
/s
- -. 1983 MNGP DISCHARGE
/ 's
['
s
\\
/
's l
\\
1e..
.M
%q
., 's
, ' ', f ^ N j
s g
i l
a N
./
N s
N
,g
,e f t
to- -
J N
.s i./
l.
s N
ss E
e--
Q.....</
m
.i 4,
.g,x" j
3 i
B--
a i
4-j 2--
l JN F5B MR AhR HY JhN J0L A0G SEP OCT NOV DEC 0
1983 MONTICELLO MISSISSIPPI RIVER WATER QUALITY STUDY.
SPECIFIC CONDUCTANCE 8
LEGEND i
450--
1969-1983 MEAN AMBIENT 400- -
1983 AMBIENT l
s2b.
g'/
f l
l 350--
/
1G83 MNOP DISCHARGE I
j l
j= _. =-f
[
i
//
{
I' a00--
p
s f
l
[
x e
t y
l u
j
\\
250--
'l t
0 1
0
.C j
200--
y 150--
100- -
- t..
I.
i 50--
e i
?,
O l
JAN FEB MAR APR MAY JUH JUL AUG SEP OCT NOV IEC il I
l.
MONTH F1 cons 3
[
3 I
1983 MONTICEl_LO MISSISSIPPI RIVER WATER QUALITY STUDY.
l-'
pH e
LEGEND
/%
..............**__3.z.....,
l t
./,.-
- %q N
i e
%z -
1oe8-1GB3 MEAN AMBIENT i v-1983 AMBIENT l
7--
t 1983 MilGP DISCHARGE i
a..
E i
,I I
f i,
I' I
w!
co 5--
l I
1 i
I E
4--
l i
a 4
s--
I t
2--
7 i
i I
1--
i t
I I
l 0
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC i
M
l 1983 MONTICELLO MISSISSIPPI RIVER WATER QUALITY STUDY.
TOTAL DISSOLVED SOLIDS soo LEGEND-i l
1eeG-le83 MEAN AMBIENT 250--
/
18s3 AusIENT
/
f'#
v - *.,, \\
A
/
(
/
\\
2o0
%g
- gx /
. N 4'/
1883 MNCP DISCHARGE 1,5
<?
v
- g
.y\\/ i,,, m___,........ -
v
/....-
\\,...i -
\\
/
l J
150-
/
\\
g/
\\
0)
I i
i 100 I
l So--
j 1
l 4
o 0
- t---
=0 JAN FEB MAR APR MAY JUN JUL AUG SEP oCT NoV DEO l
MONTH ricuas 5
F ----~ ~
~
i l
1983 MONTICELLO MISSISSIPPI RIVER i
i WATER QUALITY STUDY.
I 1
1 SULFATE i
l l
LEGEND
)
l I
i 1
I 1
l i
l 8
i 1968-1983 MEAN AMBIENT i t
)
25 -
j' I
g f
l I
1983 AMBIENT j
h I
i i
l I
I 1983 HNGP DISCHARGE h
20--
l l
1 I
g I
g y
.cb1 g
of 4
I J 'O s
i l
W 15--
8 t
s J
8 l
f
\\
I l
l l
l m
j j
lo..
j.'
C QsV [.:, g.
-STN,,
'll, //
l j
E
{
=
l i
l
/
'sJs
/
N s' Nsy l
l l
s
./. -
N j
s 5./
1
}
i 5--
i,.
I l
i t
i i
- l
-a JAtt FEB MAR APR HAY Juti JUL AUG SEP OCT IIGY DEC i
I j
i M
.. -.. =
1983 MONTICELLO MISSISSIPPI RIVER WATER QUALITY STUDY.
P ALKALINITY s
LEGEND 1968-1983 MEAN AMBIENT 4
1983 AMBIENT S. 5 --
l 19E 3 MNGP DISCHARGE s-.
o m
11
,11 D
z.
s 0
- 2. s..
s1 I 1 j
.i; s.
, j -,',,i m
2 E
g.
y u
s
- \\.a
\\.
1, 1
,s
\\ s,
- 1....
1
/
i 1
...\\
3.1
\\
s s
/
i j
t 1-1 1
\\\\
l 1
1
\\
t u
l u
s t
I s
\\
\\
s
.e-.
l s
1
\\
t i
il
/
I
\\
+--!
~.1 o
JAN FEB MAR APR MAY JUtJ JUL AUG SEP OCT 110V DEC i
MONTH F1cuas 7 i
, -.. -. ~... - - -.
. =
_1 s
i 1983 MONTICELLO MISSISSIPPI RIVER I
j-WATER QUALITY STUDY.
M A L.K A L I N I T Y i
~
200 7
LEGEND i
i l
1 1
180--
i i
l N
1968-1983 MEAN AMBIENT I gg l
too--
\\g
,p..=/
l 1oes AuszeNT t
e i
4.%
y t
1---
.s
- r
_f.......-
l
.v.
N/
1 l
j
- j 12o..
i m
=
u o
l l h~ U 100 --
la i
1 s
80--
I i
i l
t i
80 --
1 l
i s
i 40--
{'
.l l
j.
L.-
20--
i i
i o
~' NL ANG SEP OUT NdV DEC J5N F5B M5R APR M5Y J0tl J
I dummmassamanummaman
n 1983 MONTICELLO MISSISSIPPI RIVER i$
WATER' QUALITY STUDY.
i !,
AMMONIA NITROGEN
,j i
. as -
LEGEND
,i i
- j
.225 --
I 1960-1983 MEAN AN9IENT i
1
.2--
6 i
l 1983 AMBIENT
.17s--
1983 HNGP DISCHARGE I
(
l 1
k i
. [.t
.1s--
l 1g i
l q
l
\\\\
i a
1 a
w a
it 1
l g
.12s--
/
u i
/
\\\\
s
\\
l t
c
.J g
e
,s
,ln N
-1s i
m 1--
gs j
s
.s E
st si yt j/
\\s
\\
m
\\
//
\\\\
\\
1
?
1 i
/
. 075 --
\\
\\\\.
V s > a'/
j
+
O.
y 9
/
.' \\- -., %
/
. os --
N/
s N
N i
. cas --
s s___
i
- 4 i
2 JAt 5"$8 AhR MIY 3 N Jbl.
S$P ObT NbV
~
f
I 1983 MONTICELLO MISSISSIPPI RIVER o
WATER QUALITY STUDY.
l NITRATE NITROGEN 2-------------=
.1. 8 --
l 1958-1983 MEAN AMBIEt3T l l
- 1. 0 --
1G83 AMBIENT 1983 Ml;GP DISCHARGE 14--
i I
- 1. 2 --
Z s
sa f
l' 8
i i
i O
1- -
s i
b s
)
i g
D)
.8-E i
I
.6--
t
/
M%g
/j,%
/
N,
- .4 I
t
.4--
')s.
//,/
n
.=
s
.,f G -
,,:~~w.).
)
{.
\\.... /. e
. ng.-
l
.2--
g
/
.O
-F -- --
t - -. -- :-
k..--,
F-
--- g I
JAN' FEB MAR APR MAY JUN JUL AUG SEP OCT 3.'OV DEC i
1
p,
+*..
t 1983 fy! O f'i T I C E L_ L. O MISSISSIPPI RIVER WATER QUAL.ITY STUDY.
NITRITE TiITROGEN
. 021 -
3 99._39
/ /tt
's
((,
d,k
'[ /
.0189 T.
l f
i 1989-1993 MEAN AMBIENT
. 0168 h f
l
') -
{
1983 AMBIENT
,/'s i
3 g
f k
. 014*/ -f
[/
1983 MtiOP DISCHARGE I
i 1
i
// s i
I j
,; i f
k I
\\
g
[
.0128k 18 m
z
\\
i,
\\
,-./.
/
1 L
- \\
,1
{
i/
j 0
. 010$ f g
1.
a '
-l.
\\
i
//
i
\\\\
t I.
s 1g 1
g/.....
,\\
t j ~ g).OO94 T,
'l
' '/
f M*
'.'\\)!
E 1 $'
\\/
/
i
...v j
i
. 00., ;
i 1
4
.0042 7 l
[
1
. cO21 -j-1 s
1 i
o i
.,___+_.___+..__...;
__+._...,___+_____i JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC f
i MOf iTH F1cuas 11 I.
_m.
l 1
1983 MONTICELLO MISSISSIPPI RIVER
. WATER QUALITY STUDY DISOLVED PHOSPHORUS LEGEND
.0001--
1968-1983 MEAN AMBIENT
.0802- -
k 1983 AMBIENT 4
. MOS --
t\\
_ _. MNGP, DISCHARGE i\\
/
'\\.
/ I A
\\
\\
\\
I s-j
- \\.
j\\
a.
l\\
t
/;.
g
- \\, %
V I
\\
\\
.DeOs--
I gl :
\\
\\
\\
. 1.; \\-I,,\\
\\
I a
I,,.:
\\~
y-j
~
\\
x m
.0am-t j i,\\
llu.
\\.\\
I e
l i il li N.\\/
/_,-
.OsO7-j
\\
I,l
\\,
. l,l
\\.
N. /.. -
yI V/'
.0208--
((
g I
/
I
.0109--
I
,_ _ _ f
.001 JAN F$B MAR APR MAY JUN JLA-AUG SEP OCT NOV OC f=l.h.4f'. ff{f!ll$'f_,5*l:h.b fh$;ll.;:$f f.b;.f k'.i. I 4A
, i
- t..
t s-
.g n
w a
w
!s*
ft:
85 x
x
'. L.-
s o
s,,
z O
O ua m
H
~
N
/T f3 Q
m n
4 n.
g.4 g
P 12 sa
.m t
E o
U n
(T; ::
m m
e a
e a.
a.
._ 4 -.,,
a a
14 0
1 l
q s
111 l
s.u q
/~ r, I
i
- s..-
- a. u t,),
f,,
1 -i
_). 4, i,
.r..
au
/s
- fr.
iT t,,t
/
i V
G
+
Di us uti I //
I --I 4:
,)
9 l;)r s.
I !
s.*
7
};
ll3
) -
s s
a I-a
~ ~,
g...g s.
i s
a.
r-
- I
'a,.3'
+in I
w
~
i
_i L.
.s.
~~.
C
- "s II]
<,s.
~ -#,-
(.
.)
,' x
< < ~ ~ -g, < * <,
- s 2
~ 7 (..)(~)
,,, t 4(.
-4 fa::
f.t s
d.1 s i
')
c...I.:
sl
.s.
l
- 4.,. -
S
- e. '
g, s1.*i s
. x l' I t.
Lj y
=
[** <i.. i-d *
- '%'~..
4A i '
.a
.. se
- s i...r
.. i
~ ~ ' ~ ~.
i=
7, x
u
-)
. /'
.- m 1
1 *
'm., **., % g.y,"%
y*
tai I $
.f D
. I "'* g ',N s
'e.. /
.IJ
's
.1R :
. }--l
- 3
?
[*gS JJ W p _ _r.......... p.._... :
._. p.
___.p._ _ _ p..-
.p_
y
-r a
e n
n n
n a
t -i 4
_ r3 UC - oo
~1.' Sus
.4 7 -
l
M_
w m
e 1
0..*.
x x
~
=
a h:
a e
n c;
3 m
1 (D
E a
bd 05 A
- 1.
o e"
.o e
a Q
G.
Q g
H e
0d i
.L 3
t
.a F --I
)
O r
+w
/
/
!.1
)
/
s
.g; i
ulJ i.-
,8 U.
s g-
< f, i, it; 0
r-H s',
I i.4
.... H [1
\\,'
1st 7,;
~,
=
o s..
s 2
s N
4 (5 p
s l.~ - 3 4
(,
,.i H[3U
'I.
- il s
s l.i.l..'
s 1.*
%., ' g
/
- ~
N -
s, v.
i ?
1>$
1 -i,Ll i
<i
[--
r-s 5:tt s
s 3
a f e.
i La t
a 1.
\\
s s
g Aw g
,..3-s w
g g,. -
sj s
s 44 b
( 'n -
i u) p.. _..
p.. -. p.. _ _... p p.... p...._ _.p.. _.... p....;__ _.. p... _.. 4 Td o
a e
n n
a e
e n
N a
m
.4 4
71 oo 1,4m s.
... -.48 _
t MONTICELLO NUCLEAR GENERATING PLANT ENVIRONMENTAL MONITORING PROGRAM 1983 ANNUAL REPORT f
A
SUMMARY
OF THE 1983 MONTICELLO ELECTROFISHING SURVEY i
Prepared by:
.J.
W. Weinhold Environmental and Regulatory Activities Department Environmental Sciences Section
. Northern' States Power Company 49-
A
SUMMARY
OF THE 1983 MONTICELLO ELECTROFISHING SURVEY s
INTRODUCTION A fisheries survey designed to assess relative abundance and seasonal distribution of fish in response to Monticello Nuclear Generating Plant's (MNGP) thermal plume was conducted in 1983.
The same sampling procedures and equipment were used this year and in all previous studies ensuring a set of relative data indices for yearly comparisons.
Study areas (Figure 1) were sampled eight times between April 19 and October 27, 1983.
Sector I encompasses an area of 21.6 ha and extends from the discharge structure upstream 1.7 km to the top of Cedar Island.
Sector 2 extends 1.5 km downstream from
[
the discharge structure to the bottom of Boy Scout Rapids and
[
includes an area of 27.1 ha.
The thermal plume covered less than one half of the area of Sector
'2 throughout most of the sampling period (see Water Monitoring Summary Section 1).
Percentage composition, catch per unit
- effort, condition factors, ano length-weight relationships were determined for predominant species in each sector.
Comparisons with 1968-1982 data were also made.
MATERIALS AND METHODS A
n f
Equipment, sampling frequency, technique, and data computation were the same as the 1976-1982 studies.
Sampling was conducted f
with pulsed direct-current electrofishing equipment (Figure 2).
h A five-meter, flat bottom boat equipped with a
railing, one
- anode, and ten cathodes was utilized.
The~ power source was a 230-volt revolving field portable alternator.
Current was 4
maintained at five amperes at a rate of 60 pulses per second h
with a commercial transforming unit.
a 51
,._\\.'
2 'l l
l' k,
1 3
0 Paired shocking runs were conducted along opposing shorelines, l
l E
l as described in the 1975 report. Stunned fish were captured with
]
one-inch mesh landing nets equipped with eight-foot insulated i
h q handles, and placed in holding basins until completion of each sampling run.
Elapsed shocking time was recorded for each run j
h by a clock, which only tallied the seconds that the electrical field was energized.
[
m
?
Fish were measured to the nearest millimeter and weighed to the 1
1 tu nearest 10 grams.
Scales were collected from key scale area; j
g]
h from specimens over the entire length range for future age and rate of growth analyses.
d E
Species catch per unit effort (cpe) was comp uted for both 1;:
q si sectors on each sample date.
Cpe's were determined for number g-M.
(fish /hr.) and weight (kg/hr. ) by dividing the total number and g:
i-weight of fish collected per area by the elapsed shocking time g
[j for the area.
s Fish were grouped into twenty-millimeter intervals, and mean j'
total lengths and weights were computed for each group.
Using j7 these averages, condition factors were computed for the most
-I7 abundant species with the formula:
g
?
w K =Wx 105,
)
L3
_.h Y
where K is the condition factor, W is weight in grams, I
and L is total length in millimeters.
(
2 H.
Individual fish measurements were used to compute length-weight
?l relationships for the five dominant species.
Data from both sectors were combined in this analysis.
As with condition g
factors, all data were grouped and not segregated by sex.
Metric measurements were transformed into logarithms, and simple i5
]
52 1
linear regressions were computed.
Le ng th-we igh t formulas used to describe the data are presented in the following form:
log W = log a + b log L, where W is the weight in grams, L is the total length in millimeters, a is the Y axis intercept, and b is the slope of the length-weight regression line.
RESULTS A total of 3,087 fish was collected in the 1983 survey, 1,387 from Sector 1 and 1,700 from Sector 2.
Common and scientific names of species collected in the 1976 through 1983 surveys are presented in Table 1.
Fifteen species from eight families were collected in 1983.
In all, 25 species from nine families have been identified during the MNGP studies.
Percent contribution to total catch by number was computed for each major species from 1968 through 1983 (Table 2).
Figures 3
~through 5 depict the percent contribution to total catch of the
~
fish community in this study area.
Monthly cpe statistics were computed by number ( f is h/h r. )
and weight (kg /h r. )
for each species (Tables 3 and 4).
Fish per hour indices are also presented in graphic form as a visual comparison of seasonal abundance for the six major species in this study area (Figures 6 through 11).
Comp arisons of annual cpe are presented as f is h/h r.
and kg/hr. in Tables 5 and 6.
Length frequency distributions are presented at twenty-millimeter intervals in Figures 12 through 17 for the pre-dominant species.
Condition f actors were determined using these twenty-millimeter intervals.
Statistics for these five species are given in Table 7 A comparison of mean annual fish condi-tion is presented in Table 8.
Length-weight relat!onships were 53
e s
also computed for these species and are presented in Table 9.
DISCUSSION Fifteen species from eight families were collected and identi-fied in 1983 (Table
- 1).
The dominant species (in des-cending order of abundance) were:
shorthead redhorse, silver redhorse, carp, northern hogsucker, white sucker, and smallmouth bass.
These species col.lectively comprised 97.5 percent of the total catch (Figure 3).
The remaining species which were classified as miscellaneous were (in descending order of occurrence):
walleye, black crappie, rockbass, black bullhead, northern pike, greater redhorse, bowfin, burbot, and bluegill.
There were no new species identified in 1983.
Carp Carp comprised 10.2 percent of the total catch by number in Sector 1 and 6.2 percent in Sector 2.
The mean annual abundance f or carp was 45.1 fish /hr. in Sector 1 and 57.2 fish /hr. in Sector 2.
These indices suggest little change in relative abundance of carp in the upstream sector.
A marked increase in relative abundance of this species was observed in the downstream study area in 1983.
Abundance pulses in Sector 2 during the May 12, August 4, and August 24 surveys are responsible for this elevated statistic.
Mean condition factor for both Sector 1 and 2 fish was 1.31.
This indicates a slightly heavier fish for a given length than the indices calculated for the 1982 survey.
The average carp in 1983 was about 480 mm in length and weighted 1448 grams.
The same length fish collected in 1982 weighted 1405 grams.
54 s=
l m g
The length weight relationship for carp was:
i Log W =
-4. 7 56 + 2. 9 5 2 log L.
This formula compares well with other North American Studies cited in Carlander (1969), where similar regressions ranged from:
Log W = -3.982 + 2.664 log L to Log W = -6.226 + 3.477 log L.
Shorthead redhorse Shorthead redhorse composed 38.6 percent of the catch by number in Sector 1 and 46.8 percent in Sector 2.
Mean annual abundance for shorthead redhorse was 179.2 fish /hr. in Sector 1 and 457.5 f ish/hr. in Sector 2.
The upstream catch per unit effort datumis slightly less than the 1982 index of 207.3 fish /hr.
The down-stream catch per unit ef fort datum (457.5 fish /hr.)
suggests a dramatic increase in relative abundance over the 1976 through 1982 average cpe of 1,791 fish /hr.
Abundance increases during the April 19, May 12, June 9, and September 30 surveys are responsible for the large deviation from the control sector.
Historically, an attraction for the heated effluent has been displayed during periods when ambient water temperature is below 60*F. To preclude fish from residing in the discharge canal during months when ambient water temperature is below 45'F, a weir was constructed (functional, February 1981) at the MNGP.
When compared with previous surveys (Table 5),
the abnormally high Sector 2 cpe in 1983 could in part be due to a habitat selection of shorthead redhorse to the newly created heated riffle area directly downstream of this discharge structure.
Shorthead redhorse were more abundant'in Sector 2 roughcut the 1982 survey.
55 4
ii
There were six times more shorthead redhorse collected in Sector 2
than Sector 1
during the April 19 survey (184.2 fish /hr.
versus 1009.6 fish /hr.).
Ambient water temperature at this time was 43*F and discharge temperature was 73*F.
Shorthead redhorse were in prespawning condition during this period,. and as in previous surveys, were attracted to water temperatures which approached their preferred spawning temperature of 52*F (Scott and Crossman 1973).
Previous annual reports have mentioned that most of the chorthead redhorse which contributed to this increase in abundance were cohorts of the strong 1976 year class.
Limited r ecruitment has occurred since 1976 (for pictorial overview see Figure 13).
Size ranges for the 1976 year class have been documented with each annual report, and are as follows:
Year Age Length Range (mm)
Weight Ra nce (c) 1979 3
325-350 330-420 1980 4
350-400 475-710 1981 4
400-440 690-915 1982 6
400-450 681-970 1983 7
400-470 685-1110 The lack of growth from 1981-1983 suggests that shorthead redhorse begin their asymptotic growth phase at age five in this reach of river.
Mean condition factors for shorthead redhorse were 1.06 for Sector 1 and 1.08 for Sector 2.
Th ese indices have remained approximately the same since 1980, and are greater (e.g.,
fish weighed more for a given length) than the 1978 and 1979 indices.
56
The following length-weight relationship was developed for shorthead redhorse:
Log W = -4.543 + 2.831 log L.
This regression compares well with those cited in Carlander (1969) which range from:
i Log W = -3. 20 + 2. 8 3 log L to Log W = -4.042 + 3.021 log L.
Silver redhorse Silver redhorse constituted 38.1 percent of the catch by number uin Sector 1 and 33.7 percent in Sector 2.
Mean annual abundance for silver redhorse was 170.5 fish /hr. in Sector 1
and 324.8 fish /hr. in Sector 2.
Comparison of the catch per unit effort data for silver redhorse from 1976 through 1983 (Table 5) suggests a trend of increasing L
abundance of this species.
This increase in abundance is attributed to the 1976 year class, which comprised a majority of the 1982 -silver redhorse catch (approximately 80 percent).
Size ranges for the~ 1976 year class silver redhorse are as follows:
.c 57-
Year Ag e I.e ng t h Ra nge (mm)
Weight Ra nge (g) 1979 3
210-280 98-230 1980 4
260-360 200-530 1981 5
320-440 365-710 1982 6
350-440 470-930 1983 7
380 450 603-1000 Growth of this species appears to be continuing at age seven.
Catch rates for silver redhorse were higher for Sector 2 during the
- April, May, June, and September surveys.
Th ese higher indices, as in previous surveys, are attributed to an attraction
~
to MNGP's thermal discharge.
~
Mean condition factors for Sectors 1 and 2 were 1.08 and 1.11, r espectively.
These indices compare well and indicate little length-weight difference between the two study areas.
Silver redhorse had a length-weight relationship of:
Log W =
-4. 90 3 + 2. 9 73 log L.
This regression closely approximates the f ormula reported in Carlander (1969) which was:
Log W = -4.263 + 3.124 log L.
White sucker White sucker comprised 5.3 percent of the total catch in Sector 1 and 2.4 percent in Sector 2.
White sucker were collected at a 58 JEs
rate of 24.4 fish /hr. in Sector 1 and 22.5 fish /hr. in Sector 2.
These statistics are much lower than the 1982 indices of 31.6 f ish/hr. for both sectors.
In previous surveys,the 1976 year class white sucker has been the major component in this species community.
Its contribution to the white sucker catch for 1981 through 1983 is approximately 76 percent, 55 percent, and 42 percent, respectively.
Natural attrition would account for this trend of decreasing abundance.
Year Age Length Range (mm)
Weight Ra nge (c) 1979 3
220-320 120-370 1980 4
320-400 380-745 1981 5
380-440 640-1020 1982 6
380-450 636-1050 1983 7
280-360 628-1115 Observation of the lack of growth of the 1976 cohort in 1983 suggests the white sucker in this reach of river has entered its asymptotic growth phase at age five.
White sucker were more abundant in Sector 2 during the April 19 electrofishing survey.
Little attraction to MNGP's thermal discharge was displayed during the remainder of the 1983 study.
Mean condition f actors for Sector
.1 and Sector 2 were 1.'15 and
.l.14, respectively.
Condition factors for white sucker have remained similar throughout the 1976 through 1982
- surveys,
-indicating little change in length-weight ratios.
White sucker had a length-weight regression of:
Log W = -3.962 + 2.617 log L.
59
This regression compares well with other North American studies, as recorded by Carlander (1969), which nad a range of:
Lo g W = -2. 8 2 2 + 2. 2 3 0 3 log L to Log W = -5.395 + 3.223 log L.
Smallmouth bass Smallmouth bass composed 2.5 percent of the total catch by number in Sector 1 and 3.8 percent in Sector 2.
The annual catch per unit effort data for Sectors 1 and 2 was 11.4 f is h/h r.
and 36.0 fish /hr., respectiv'ely.
The marked increase in cpe for Sector 2 is due to abundance pulses occurring in the April 19 and October 27 electrofishing surveys.
Both pulses suggest an attraction for the heated effluent during periods when ambient water temperature was below 47'F.
Smallmouth bass in this reach of the Mississippi River had moderate reproductive success in 1980.
These fish (200-300 mm) composed a
majority (approximately 75 percent) of the 1983 smallmouth catch.
The 1976 year class fish, which did dominate the electro-fishing smallmouth bass catch from 1977 through
~
1980, was not collected in 1982, and only one representative was collected in 1983. This fish was 450 mm in length and weighed 1550 grams.
Through harvest and natural attrition, these fish have become a smaller segment of the smallmouth bass population.
Also, an increase in avoidance associated with size and a
possible habitat shift to less efficiently electrofished habitat could contribute to this catch reduction.
The mean condition factor for smallmouth bass was 1.35 in Sector 1
and 1.33 in Sector 2, indicating little difference in their length to weight ratios between sectors.
60
These indices
- are, however, lower (less weight for a
given length) than the 1980 through 1982 indices.
The average weight difference is approximately four percent.
An average 318 mm smallmouth bass in 1982 weighted 450 grams.
Th e s ame length fish in 1983 weighted 430 grams,
.The length-weight relationship for smallmouth bass was:
Log W = -4.360 + 2.797 log L.
This formula compares well with the range of regressions report-ed in Carlander (1977):
Log W = -4.177 +2. 701 log L to-Log W = -5.841 + 3.372 log L.
Walleye As in previous surveys, the walleye comprised a
very small h.
portion of the total catch.
-Their percentage composition by number was 0.6 percent in Sector 1 and 1.2 percent in Sector 2.
Catch per unit effort statistics for walleye were 2.8 fish /hr.
in Sector 1 and 11.8 fish /hr.
in Sector 2.
The Sector 1 cpe
" s lower than the 1982 catch rate of 6.2 fish /hr.
This datum i
statistic.is, however, very close to the average yearly Sector.1 catch rate (Table 5).
Catch per unit ef fort of 11. 8 fish /hr in Sector 2 is the highest recorded since 1976.
Although this does not represent an extra-ordinarily high number of walleye, it suggests that in 1983 there were more walleye preferring habitat within the MNGP's thermal plume.
61
r e
i 2
E
{
Insufficient numbers of walleye were collected in 1983 to war-rant computation of condition factors or length-weight regres-g sions.
g E
f Northern hogsucker E
Northern hogsucker comprised 2.1 percent of the total catch by B
number in Sector 1 and 5.3 percent in Sector 2.
p a
This species was collected at a rate of 4.3 f is h/h r.
in Sector 1 r
and 49.6 fish /hr. in Sector 2. These statistics are approximate-ly the same as those computed in 1982.
Table 5 illustrates the f
trend in increased abundance of the northern hogsucker.
Lg Prior to 1977, this species had not been documented in the reach p
of Mississippi River above the Coon Rapids Dam.
Its presence
[
has increased significantly since
- 1978, and the northern
[
hogsucker is now assumed to have an established population in w
p-the MNGP area.
E
[
Miscellaneous Soecies U
k Miscellaneous species comprised 2.7 percent of the total catch k
in Sector 1 and 0.7 percent in Sector 2.
The catch rate for F
this category was 12.4 f ish/hr. in Sector 1 and 6.0 f is h/h r.
in E
E Sector 2.
Traditionally, Sector 2
has had higher specios g
d i'versity and abundance, however, in the 1983 electrofishing
{
survey, both diversity and abundance were lower than the Sector
{
l statistics.
Th is observation may in part be due to the
[_
creation of a weir, which now excludes the discharge canal from ji the study area, bj Species which contributed to the 1983 miscellaneous category are
((
in descending order of occurrence:
black crappie,
- rockbass, B-black bullhead, northern pike, greater redhorse, bow f in, burbot,
!E and bluegill.
62 M
=-
l Species which have been collected in previous electrofishing surveys that were not collected in 1983 are:
- cisco, muskellunge, bigmouth buffalo, yellow bullhead, brown bullhead, largemouth bass, white crappie, pumpkinseed, green sunfish, and yellow perch.
As with other forms of fisheries sampling gear (e.g.,
trap net, gill
- net, and seines),
electrofishing is size and species selective.
The species which comp rise MNGP's miscellaneous category may be more abundant than is suggested by the rela.tive cpe data.
SUMMARY
1.
The 1983 electrofishing survey was conducted with a pulsed DC unit at four-week intervals starting April 19 and ending October 27, 1983.
Energized shocking time.was used to calculate catch per un'it effort data.
2.
A total of 3,087 fish was collected including fifteen species from and eight families.'
Twenty-five species from nine families have been identified since 1976.
3.
Sector 1 had the following dominance ranking:
shorthead redhorse, silver redhorse, carp, white sucker,' smallmouth bass, northern hogsucker, rockbass, black crappie, walleye, black bullhead, northern pike, greater
- redhorse, bowfin, burbot, and bluegill.
In Sector 2 the dominance ranking was:
shorthead redhorse, silver redhorse, carp, northern hogsucker, smallmouth bass, white
- sucker, walleye, black
- crappie, greater
- redhorse, northern
- pike, and black bullhead.
4.
Prior to 1981, catch per unit effort data suggested a trend of decreasing abundance for carp.
Th e 1982-83 indices sug-gest a slight increase in this species population.
Northern 63
hogsucker and silver redhorse displayed an increase in abundance in 1983.
The 1983 white sucker cpe data were notably down from 1982 indices.
5.
Catch rates (cpe) for carp, shorthead
- redhorse, silver redhorse, smallmouth bass, walleye, and northern hogsucker I
were higher in Sector 2.
The higher indices suggest a
preferrence by these species for MNGP's heated effluent, especially when ambient water temperatures are below 55*F.
The white sucker displayed little attraction for the MNGP thermally influenced area.
6.
Condition factors were computed for the five dominant species.
In 1983 carp, shorthead redhorse, silver redhorse, and white sucker were approximately the same weight for a given length, as calculated in the 1980 through 1982 stu-dies.
The 1983 maailmouth bass were slightly lighter for a given length than those collected in 1980 through 1982.
e 7.
Length-weight relationships computed for the five dominant species compared well
.41th the regressions reported by-Carlander (1969 and 1977).
9 64
I l
LITERATURE CITED Carlander, K. D.
1969.
Handbook of Freshwater Fishery Biolocy,
Volume I,
752 pp.
The Iowa State University Press, Ames, Iowa.
Carlander, K. D.
1977.
Handbook of Freshwater Fishery Biology, Volume II, 421 pp.
The Iowa State University Press, Ames, Iowa.
- Scott, W.B.
and E.J. Crossman. 1973 Freshwater Fishes of Canada Bull. 184 Fisheries Research Board of Canada, Ottawa. 966pp.
i G
65
i,
Figuro 1.
1983 Monticollo Elcctrofiching Aroca.
/
\\
/
l
\\
L 0
CEDAR I
j 0
ISLAND LEGEND Sector 1 Sector 2 g. g.s g
_ BEAVER ISLAND PLANT SITE #
COOLING TOWERS s==s
(
DISCHARGE
,.,,,':.; /
., ',%,i:h;.
CANAL i s.,:
Weir
- ' ':[:c,:??
0 0.5 1.0 j
/ -
OXBOW
,, I ISLAND Scale - Kilcuneters I
i BOAT LANDING %
STORAGE /,'
BUILDING
/,
,,,/**
,t THERMAL PLUME MONTI5IPPI PARK
,.._,., /,,; :.
p
\\,.-
/
/
67
\\
\\
\\
l a.
3
\\fe n
i 5
_4%"
N r.
l so.
2 e
^5 4
0 3
3 g
som b
1 O
[':,:.
l as
\\
2 Da W
Q t.
u W
M
- 3 <
W
,a Q
(
68
I E
O i
i i
u!i su ass e a l
b$
/
%g8 s
s
/
/'
/
Ne N'M 9 '/ /
i na 8
s$3d
/
2 s g/
U
$$4 xN f
O N
l i.
E.
69
e r
E E
t a
b! M IE n 5x N"g!
Eas esS
- /
g 4
g 9
Ia
!"M N
g4
~
O g
I e
V (f)
/
i, c
B tid/
j i
i v
14 70
e i
s s
e N
a 5
=
h
$$ $n
~
2 20 go9 M
R f
/ 'y Is3 l as e
lo f
f se k
\\
c m
O N
4 a
IE\\\\ l'/[/
W
\\
u i
W
\\N h
f>n
(\\
o o
/
ww g
g 71
Figure 6-1983 MONTICELLO ELECTROFISHING CPE (FISH /HR) CARP 90-80-N
/
/
\\
70-
/
\\
N
/
\\
x
='
'N
/
\\
ek k
/
\\
'I N
/
\\
l so-
\\
/
a m
/
<o-V Legend 30-A S_ECTOR1 X SECTOR 2 j
l 20 i
APR/19 MAY/12 JUNE /9 JULY /7 AUG/4 AUG/24 SEPT /30 OCT/27 DATE
Figura 7' 1983 MONTICELLO ELECTROFISHING CPE (FISH /HR) SHORTHEAD REDHORSE 1200-
\\.
1000-
\\
x.
\\
-800-
\\
k
=
600-
\\
!?
\\
fx, M
/
~
\\
[
'400-
\\
/
\\
/
\\
[
200-a
__g Legend A SECTOR 1 A
X SECTOR 2, u
0 i
i APR/19 MAY/12 JUNE /9 JULY /7 AUG/4 AUG/24 SEPT /30 OCT/27 DATE t
Figure 8 1983 MONTICELLO ELECTROFISHING CPE (FISH /HR) SILVER REDHORSE 700-
[
600-
/
\\
/
\\
x 500-y
\\
/
\\
/
\\
y
.n x
/\\
a-m}
\\
/
\\
/
\\
c 3oo-
/
\\
N
/
\\
\\
200-
\\
/
\\
~
N Legend A SECTOR 1 X SECTOR 2 APR/19 MA /12 JUNE /9 JULY /7 AUb/4 AUd/24 SEP /30 OCT/27 DATE
-Figura 9 1983 MONTICELLO ELECTROFISHING CPE (FISH /HR) WHITE SUCKER 60-I
\\.
so-
\\
\\-
.o-
\\
\\
r a
a 4 30'
\\
/
le
- \\
/
\\
/
/
g 2o-j r/
~
~
/
y 10 -
Legend A SECTOR 1 X SECTOR 2, AFH/i9 ~
MA /12 JUNE /9
. JULY /7 AUb/4 AUd/24 SEP /30 OCT/27 DATE
Ficure 10 1983 MONTICELLO ELECTROFISHING CPE (FISH /HR) SMALLMOUTH BASS 10 0 -
/
/
>(
l so- \\
/
\\
/
\\
60-l
~d
\\
/
E
\\
/
g j
40-
\\
/\\
/
\\
/
\\
\\
/N
/
.\\
,x 20 N
/
\\
/
/
Legend
/
y A SECTOR 1
^
X SECTOR 2 V
o-APR/19 MAY/12 JUNE /9 JULY /7 AUG/4 AUG/24 SEPT /30 OCT/27 DATE 2
Figura 11 1983 MONTICELLO ELECTROFISHING CPE (FISH /HR) NORTHERN HOGSUCKER uo-
[
i20-
/
/
ioo-
/
so-
/
"f.
X
/
/ \\
e
/
/
x eo-
/
x
/
y
"~~J
\\
l
\\
)
1
\\
/
d v'
[*sfo"a i
+
X SECTOR 2_
A
/19 MA /12 JUNE /9 JULY /7 AUb/4
.AUd/24 SEP /30 OCT/27 l
DATE I
Figure 12 1983 MONTICELLO ELECTROFISHING LENGTH FREQUENCY CARP 35-30-j 25-t b
20-h 5
s is -
?
to -
~~
s'oo ~[I -.
E{
.5
)
h Legend iiiiis SECTOR 2 55
'~
450 soo sso eso eso 350 400
Figure 13 1983 MONTICELLO ELECTROFISHING LENGTH FREQUENCY SHORTHEAD REDHORSE 18 0 -
16 0 -
3 9
14 0 -
r; 12 0 -
i s
j M 100-a d$
l ao-3 jR l ! !P z
S l 5
S 60-f
)
I y
I
( 'l
[
- ' 3 4 40-r 1 M p
- ;)
j l'
- { ?
Legend 20-2
.S I..S Y-L'
?..
Za SECTOR 1 I
$I,
[
O 15 0 200 250 300 350 400 4: 0 500 550 LENGTH mm 1
Figure 14 1983 MONTICELLO ELECTROFISHING LENGTH FREQUENCY SILVER REDHORSE 250-200-15 0 -
8$
l 8
E E
j 10 0 -
f f b
- j g ; ;
50-A ; ;
n 6
E
- (i
'.p Legend a
c3 u :
E21 SECTOR 1 5
7 e
N N
o E:;il SECTOR 2
- ~
22(,'
M, ORI'E EIA 'E '.
- *l[- l f
e, n' n n n a
v n lb5 i
mN 2
'e F
o 15 0 200 250 300 350 400 450 soo 550 soo LENGTH mm 1
Figure 15 1983 MONTICELLO ELECTROFISHING LENGTH FREQUENCY WHITE SUCKER 18 -
16 -
c 1
F
\\
1 14 -
12 -
h 10-h ll es
~
~
s 6-h l
df; 4-
/ ;- I h
k If
'el-h Legend 2-e kl ki 8 j[,
f I
/
EZ SECTOR 1
'/ :-
Z
/
3 k
h]3 h y
- Sectoa 2 z
iso sdo 200 250 3$o 350 400 LENGTH mm
Figure 16 1983 MONTICELLO ELECTROFISHING LENGTH FREQUENCY SMALLMOUTH BASS 20-I is -
i f
10 -
h
'~
7 3
Legend g"
- ?
h 3 { l$oo ! $ !~ j _
i E sEEE 150 250 30 350 4$o 450 100 LENGTH mm
L Figure 17 1983 MONTICELLO ELECTROFISHING LENGTH FREQUENCY NORTHERN HOGSUCKER 25-20-15 -
5 58
~
E e
10 -
7 S
h f
f 5-3i l j
3 Legend m
o
'l 7
3 j;
j E>Z SECTOR 1 f
E b
E,b b b,
r o
100 150 200 250 300 3t.o 400 45o LENGTH mm
7 7
r&'
i Table 1.
Monticello Electrofishing Species List.
Species 1976 1977 1978 1979 1980 1981 1982 1983 3
Bowfin x
x x
Amia calva
].
Cisco x
g Coregonus artedi u
S Northern pike x
x x
x x
x x
x 4
i Esox lucius Muskellunge Esox masquinongy g
Shorthead redhorse x
x x
x x
x x
x 4
Moxostoma macrolepidotum i
Silver redhorse x
x x
x x
x x
x 2
Moxostoma anisurum 3
Greater redhorse x
x x
x x
x Moxostoma valenciennesi sin 5
j -
White sucker x
x x
x x
x x
x Catostomus commersoni 4
Bigmouth buffalo x
x x
x Ictiobus cyprinellus
-i' Northern hogsucker x
x x
x x
x x
x a
Hypentelium nigricans 9
lj Carp x
x x
x x
x x
x g
-'_i Cyprinus carpio g
7 Black bullhead x
x x
x x
x x
q Ictalurus melas y!
)'
i Yellow bullhead x
x x
x x
Ictalurus natalis Brown bullhead x
Ictalurus nebulosus 3
i Burbot x
x x
x e
}[f' L
Lota lota y
i Smallmouth bass x
x x
x x
x x
x
+F Micropterus dolomieul
~
'f Largemouth bass x
x x
g Micropterus salmoides Rock bass x
x x
x x
x x
x tj Ambloplites rupestris g
Bluegill x
x x
x
="
}
Lepomis macrochirus
- 'L Black crappie x
x x
x x
x x
x j
Pomoxis nigromaculatus y
White crappie x
H Pomoxis annularis
-d
- ]
Pumpkinseed x
Lepomis gibbosus Q
Green sunfish x
y Lepomis cyanellus Q
Walleye x
x x
x x
x x
x 9
Stizostedlum vitreum i
n Perca flavescens 3_.f 1
q
Table 2.
1968-1983 Monticello Electrofishing Percent of Total Catch by Number.
Shorthead Silver White Smallmouth Carp redhorse redhorse sucker bass Walleye Misc Sector 1 1968 50.7 34.5 4.4
- 2. 7
- 1. 5 4.8 1.4 1969 29.4 48.6 7.4 4.5
- 1. 8 2.0 6.3 1971 25.3 36.9 9.1 13.1 7.6 7.1 0.9 1972 45.1 26.1 9.1 4.1 7.0 1.1 7.5 1973 39.9 34.8 13.0 4.9 2.0 0.7 4.7 1974 44.3 20.3 16.7 9.2' 1.5 0.1 7.9 1975 53.5 27.0 9.3 3.7 0.9 0.5 5.1 1976 41.0 36.4 12.3
- 3. 5 3.4 1.4 2.0 1977 13.6 40.3 12.7 3.4 20.4 0.8 2.8 1978 15.4 32.2 26.4
- 5. 0 15.4 0.5 5.1 1979 15.2 43.4 29.5 5.5 4.3 0.2 2.1 1980 11.4 51.0 26.2 4.8
- 1. 6 0.6 4.4 m
1981 9.7 34.9 38.1 5.2 6.6 0.7 4.8 1982 9.8 41.7 31.9 6.4 5.0 1.3 4.0 1983 10.2 38.6 38.1 5.3
- 2. 5 0.6
- 4. 7 Sector 2 1968 34.3 58.9 2.9 3.0 0.4 0.3 0.3 1969 17.3 65.1 9.6 4.8
- 2. 0 1.2 0.4 1971 27.2 35.9 7.8 6.3 12.6 6.8 3.4 1972 38.4 33.4 8.2 3.3 5.9
- 2. 0 8.8 1973 31.2 41.3 11.5 4.0
- 2. 9
- 1. 2 7.9 1974 47.0 22.6 15.2 6.4 0.9 0.6 6.4 1975 40.8 37.6 10.8 1.9
- 3. 8 1.3 3.8 1976 32.4 40.1 12.6 1.6 9.3
- 1. 5 2.5 1977 21.2 33.1 15.3 2.1 22.8 1.0 4.6 1978 11.3 30.3 31.3 3.8 16.5 0.6 6.2 1979 9.4 49.7 26.9 4.0 5.3 0.3 4.5 1980 8.7 50.8 29.2
- 2. 9 4.8 0.3 3.3 1981 5.2 41.8 37.1 3.3 5.7 1.1 5.8 1982 5.2 45.4 33.0 4.5
- 3. 2 0.4 8.4 1983 6.2 46.8 33.7 2.4 3.8 1.2 5.9 g.
l 46786329 24702879 2
1 a
s t
3041 7164 5
52694291 5
o 76224857 5
91 1 45305 6
T 35641 265 4
7325431 9 9
11 1 1
c 05198906 4
82443006 0
s i
371 4055 2
49824 8
6 M
1 1 1 31 1
1 r
ne rk
)
221 36695 6
r hu h
ts 40674298 9
3624111 5 9
/
rg 11 1 44472132 4
h oo 1
s Nh i
F
(
e r
y e
e 07000803 8
66800623 8
b l
m l
2 298 2
946 1 1 0 1
u a
1 1 23 1
N W
y l
h t
t r
u o
0s 9245461 3 4
42309725 0
f ms f
l a 49997578 1
695 871 9 6
E lb 1
2 1
8 2
3 29 3
a t
m i
S n
U r
r e
ee 14253629 4
69850696 5
p tk ic 96592588 4
736631 54 2
h hu 21 3 1
43 2
51 111113 2
c Ws t
a C
g e
n rs 65386573 5
82371848 8
i er h
vo 75584858 0
62607553 4
s lh 72072995 7
32084630 2
i id 332 1
1 45621 41 3
f Se o
r r
t ce de l
as E
er 20678902 2
669311 23 5
ho o
th 45271272 9
91 877726 7
rd 84944902 7
855 04450 5
l l
oe 111 34 1
064111 55 4
e hr 1
c S
i t
n o
p 04728220 1
25182493 M
r a
37871255 5
7527271 3 3
C 62554442 4
65458734 8
9 1
2 1
2 3
7 r
r 5
e o
7 o
7 l
t 929 402 n
t 92 402 n
b c
1117423/
a c
11 97423/
a a
e
///////0 e
e
///////0 e
T S
45678891 M
S 45678891 M
~
Table 4.
1983 mnticello Electrofishing Catch per Unit Effort in Weight (kg/hr. ).
Shorthead Silver White Smallmouth Northern Carp redhorse redhorse sucker baus Walleye hogsucker Misc Total Sector 1 4/19 104.4 175.5 79.1 18.0 4.6 0
7.4 0
389.0 5/12 38.9 108.4 247.5 8.2 3.7 0.7 4.3 12.5 424.2 6/9 78.0 156.0 213.8 15.5 2.1 0
9.0 0.9 475.3 7/7 69.0 37.3 238.6 6.2
- 2. 8 0
- 1. 9
- 1. 0 356.8 8/4 47.8 35.2 16.2 7.8
- 1. 3 0
2.5 1.0 111.8 8/24 54.5 74.8 70.0 4.1 0.5 0.1
- 2. 0 2.1 208.1 9/30 69.7 266.1 155.6 32.5 4.8 0.3 5.6 1.7 536.3 10/27 31.1 373.6 57.3 23.8 3.2 0.6 4.5 2.3 496.4 Mean 61.7 153.4 134.7 14.5
- 2. 9 0.2 4.7 2.7 374.8 am Sector 2 4
l 4/19 97.3 783.3 377.5 29.1 23.8 4.2 20.3 9.4 1344.9 5/12 64.2 369.1 373.9 10.7 2.1
- 1. 9 21.2 1.2 844.3 6/9 47.9 285.2 470.1 9.0 4.9 4.3 20.5 1.6 843.5 7/7 71.8 80.6 215.1 11.1 0
0 28.2 1.4 408.2 8/4 70.6 122.0 112.2 6.6 8.1 0
9.5 0.2 329.2 8/24 72.8 126.0 58.0 7.6 0.6
- 3. 5 7.2 0
275.7 9/30 28.9 432.5 365.7 7.0 5.7 16.9 17.8 0
874.7 10/27 63.8 438.4 92.5 19.6 29.3 19.2 69.4
- 3. 2 735.4 Mean 64.7 329.6 258.1 12.6 9.3 6.3 24.3 2.1 706.9 l
l 1
l l
l 1
A.. M Table 5.
1976-1983 Monticello Electrofishing Catch per Unit Effort by Number ( f ish/h r. ).
Shorthead Silver White Smallmouth Northern Carp redhorse redhorse sucker bass Walleye hogsucker Misc Total Sector 1 1976 67.4 59.9 20.3 5.8 5.7
- 2. 3
- 3. 2 164.6 1977 61.3 126.1 39.7 10.5 63.6
- 2. 4 8.9 312.6 1978 51.6 108.1 88.5 16.6 51.7 1.7 0.7 16.5 335.5 1979 49.3 140.9 95.8 17.9 13.9
- 0. 5 0.3 6.4 325.0 1980 38.0 168.7 84.0 16.1 5.3 2.3 3.4 11.4 329.2 4981 44.8 167.5 173.2 25.1 31.1
- 3. 3 14.3 7.6 466.9 1982 47.5 207.3 155.0 31.6 24.2 6.2 9.6 9.2 490.6 1983 45.1 179.2 170.5 24.4 11.4
- 2. 8 9.3 12.4 455.1 m
Sector 2 1976 77.0 95.2 29.9
- 3. 8 22.2
- 3. 5 6.0 231.6 1977 79.3 123.8 57.2 7.8 85.2
- 3. 8 17.3 374.4 1978 67.7 181.7 187.6 23.0 99.0
- 3. 3 0.8 36.5 599.7
- 1. 3 0.7 19.6 456.6 1979 43.0 226.8 122.6 18.3 24.3 1980 49.4 293.2 164.5 15.5 29.4 2.1 7.1 16.6 577.8 1981 31.6 278.3 232.5 20.7 37.5 7.2 34.4
- 3. 9 646.1 1982 38.1 330.2 238.4 31.6 23.9
- 2. 7 43.7 16.2 724.8 1983 57.2 457.5 324.8 22.5 36.0 11.8 49.6 6.0 965.3 x
53.3 179.1 120.7 17.5 37.0 3.0 21.0 515.8
- 7 yr.
- For tx>th sectors combined.
O e
r Table 6.
1976-1983 Monticello Electrofishing Catch per Unit Effort by Weight (kg/hr. )
+
Shorthead Silver White Smallmouth Carp redhorse redhorse sucker bass Walleye Misc Total Sector 1 1976 97.5s 46.1 23.3 4.2
- 1. 6
- 0. 6
- 1. 7 185.0 1977 103.6 109.4 64.4 5.7 13.0 1.1 4.6 301.8 1978 74.8 70.2 47.2 6.0 9.0
- 0. 3 3.9 211.6 1979 66.3 91.8 57.1 8.1
- 3. 2 0.4 5.6 232.5 1980 57.0 114.8 58.8 9.3 1.8 0.4 4.9 247.0 1981 64.8 130.5 127.2 13.2
- 2. 8 0.7 9.6 343.8 1982 63.4 168.2 110.6 19.0
- 3. 6 1.4 12.1 3'9.3 1983 61.7 153.4 134.7 14.5
- 2. 9 0.2 7.3 3 '4. 7 I
Sector 2 1976 75.2 89.0 34.4 2.9 4.5 1.4 1.4 209.3 1977 99.7 85.7 61.9 11.7 15.6 2.1
- 2. 5 279.2 1978 86.0 106.2 60.4 7.0 17.4
- 2. 6 6.0 285.5 1979 53.1 145.5 69.8 7.9 6.0 0.6 7.6 290.5 1980 49.1 196.9 80.2 9.2 9.6
- 0. 9 6.2 352.1 1981 38.7 206.1 158.6 13.9 8.6 1.9 14.0 441.8 1982 41.7 236.2 189.0 16.7 4.1 1.4 24.4 513.5 1983 64.7 329.6 258.1 12.6 9.3
- 6. 3 26.3 706.9
- 7 yr.
x 69.4 128.3 81.7 10.7 7.2 1.1 7.9 306.3
- For both sectors combined.
1 s
2 l
Table 7.
1983 Condition Factors for Sectors 1 and 2.
Shorthead Silver White Smallmouth Carp redhorse redhorse sucker bass Length 1
2 1
2 1
2 1
2 1
2 120-159 140-159 160-179 1.15 1.22 1.54 1.24 180-199 1.07 0.89 1.18 1.00 200-219 0.96 1.11 1.01 1.16 1.43 1.29 220-239 1.03 1.15 0
1.20 1.33 1.47 240-259 1.21 1.22 1.21 1.02 1.36 1.22 260-279 1.08 1.17 1.23 1.17 1.21 1.41 1.32 280-299 1.10 1.05 1.11 1.14 1.34 1.29 1.33 1.36 300-319 1.14 1.12 0.96 1.06 1.23 1.17 1.41 1.22 o
320-339 1.34 1.59 1.09 1.08 1.11 1.21 1.23 1.17 1.34 1.31 340-359 1.26 1.42 1.12 1.09 1.11 1.10 1.18 1.18 1.36 360-379 1.39 1.46 1.07 1.09 1.12 1.14 1.20 1.12 1,54 380-399 1.30 1.28 1.07 1.08 1.12 1.12 1.17 1.08 400-419 1.34 1.33 1.07 1.09 1.10 1.11 1.02 1.05 420-439 1.28 1.24 1.09 1.09 1.10 1.10 1.03 1.11 440-459 1.25 1.24 1.07 1.06 1.10 1.08 1.05 1.04 460-479 1.26 1.23 1.03 1.05 1.08 1.06 1.20 480-499 1.32 1.26 0.98 1.00 1.04 1.04 500-519 1.29 1.31 0.98 0.92 1.03 1.03 520-539 1.24 1.28 1.03 1.00 540-559 1.22 1.28 1.02 1.03 560-579 1.29 0.95 1.09 580-599 1.37 1.15 600-619 1.49 Mean 1.31 1.31 1.06 1.08 1.08 1.11 1.15 1.14 1.35 1.33 O
i - - - - - - _ _ -._ _ _ _ _. - - - - - - -,_ _ _ -
1
.?
1::
2 2
R
-n e
MONTICELLO NUCLEAR GENERATING PLANT 3
'il ENVIRONMENTAL MONITORING PROGRAM aS 1983 ANNUAL REPORT
=
$e 9
_=
- 4 E
i
=:)
J SEINING STUDY M,
2
_a i
5 m
$r
?_
6 i
Prepared by:
LOl J. W. Weinhold y
Environmental and Regulatory Activities Department Environniental Sciences Section p
Northern States Power Company
?
3 h
Q
=
5 93 g
Table 8.
Annual Average Condition Factor for 1976-1983 Monticello Electrofishing.
u Shorthead Silver White Smallmouth Carp redhorse redhorse sucker bass Year 1
2 1
2 1
2 1
2 1
2 1976 1.31 1.37 1.10 1.04 1.18 1.18 1.30 1.15 1.47 1.59 1977 1.35 1.35 1.14 1.15 1.19 1.20 1.17 1.14 1.55 1.43 1978 1.35 1.33 1.00 0.99 1.10 1.09 1.14 1.08 1.31 1.31 1979 1.27 1.28 0.99 0.97 1.04
'l.05 1.12 1.19 1.39 1.29 1980 1.25 1.36 1.11 1.12 1.14 1.15 1.15 1.18 1.48 1.43 1981 1.31 1.28 1.06 1.09 1.12 1.11 1.12 1.24 1.41 1.36 1982 1.27 1.27 1.07 1.06 1.11 1.09 1.15 1.17 1.42 1.39 1983 1.31 1.31 1.06 1.08 1.08 1.11 1.15 1.14 1.35 1.33
-m Table 9.
1983 Length-Weight Relationships for Fish Collected via Monticello Electrofishing (Length in Millimeters and Weight in Grams).
Species Log Formula Le ng th Ra nge Number of Points Carp Log W = -4.756 + 2.952 log L 300-620 mm 246 Shorthead redhorse Log W = -4.543 + 2.831 log L 200~-520 mm 1331 o
M Silver redhorse Log W = -4.903 + 2.973 log L 160-580 mm 1102 White sucker Log W =
-4. 569 + 2. 8 52 Log L 240-480 mm 114 Smallmouth bass Log W =
-4. 3 60 + 2. 7 97 log L 120-460 mm 98 S
A E
i5I N1 1983 MONTICELLO SEINING STUDY h
A
=
INTRODUCTION N
l During 1983, a seining survey was conducted on the Mississippi 3
River near the Monticello Nuclear Generating Plant (MNGP).
k Seinable locations were utilized over a 1.6-kilometer stretch of river adjacent to the MNGP discharge structure.
Objectives of g
this study were to make observations on the relative abundance j
and species composition of the small fish commu nity in 1983.
A Comparisons of these data were made with previous seining surveys as a historical overview of the relative abundance for this small fish community.
Observations on reproductive success of major "large fish" l
species were also made using young-of-the-year seining data from
}
previous surveys.
.n
- In 1983 high river flow prohibited scheduled seining on June 15,
{
June 29, and July 13 of this year.
Exclusive of these three dates, seining was conducted once every two weeks from May 11 a
through September 29, 1983.
The study area included 1.6 km of
}
river extending 0.8 km upstream and 0.8 km downstream from the MNGP outfall structure.
Two upstream and two downstream stations were utilized (Figure 1).
Their locations were the j
same as those used in the 1977-1982 surveys.
MATERIALS AND METHODS a
A 20-foot seine with 1/8" mesh was used for sampling.
Hauls were directed downstream.
The distance of each seining haul was recorded.
Captured fish were immediately placed in a
water-filled
- basin, identified, tabulated, and released.
1 Voucher specimens were preserved in a 10 percent formalin 95 i
1 solution.
Computation of the area sampled was accomplished by multiplying the length of the haul by the width of the seine.
Species abundance indices, or catch per erfort (cpe), were computed by expanding the number of fish captured per haul and expressing the results as number per hectare.
Abundance indices were utilized to calculate percentage composition of each species in the total catch.
Freshwater Fishes of Canada (Scott and Crossman 1983), Northern Fishes (Eddy and Underhill 1976),
The Fishes of Missouri j
(Pflieger 1975), and Illustrated Key to the Minnows of Wisconsin (Becker and Johnson 1970) were the taxonomic references used to identify specimens captured in 1982.
RESULTS A total of 5,729 specimens was collected in 1983; from these, 31 species from 8 families were identified (Table 1).
Table 2 illustrates the species percent contribution to total catch observed over the nine seining surveys.
Ten f amilies including 38 species have been collected during these studies.
Tables 3 and 4 denote seasonal abundance, in fish per hectare, the yearly average, and the overall percent contribution to total catch for fish collected in the upstream and downstream study areas, respectively.
Ta ble 5
is a comparison of 1977 through 1983 average fish per hectare data.
Table 6 illustrates the percent contribution to total catch of species collected in the upstream and downstream study areas.
Abundance indices for young-of-the-year of selected species (smallmouth
- bass, white sucker, and the Moxostoma spp.)
are presented in Table 7 These. indices are reviewed annually for 96
indication of reproductivo success for thoso dominant "large an fish" species found in the MNGP river area.
A specios list with both scientific and common names of fish discussed in this text is compiled in Table 8 DISCUSSION No now species woro collected in 1983, but a larger tnan normal diversity of species was realized.
The average numbe r of specios obtainod betwoon 1970 and 1982 has boon 21.8 spacios por year, whereas in 1983, 31 species woro collected.
Cisco, crook chub, river shiner, golden shinor, white crappio, brook stickle-back, and northern rodbolly daco wore specios found in previous surveys but not in 1983 (Tablo 1).
Species which dominated the 1983 upstream collections woro: sand shiner, apotfin shinor, Moxostoma
- specios, bluntnoso
- minnow, hornyhoad
- chub, bigmou th
- shiner, and log porch.
Dominant ranking for the species in the downstream samplos woro:
spotfin shinor, sand shinor, Moxostoma species, bluntnoso minnow, shinor specios, and smallmouth bass.
The combined upstream and down-steam species dominanco ranking for 1976-1983 studios is as follows:
1976 1977 Bigmouth and sand shiner Bigmouth and sand shinor Bluntnoso minnow Bluntnoso minnow Spotfin shiner Spotfin shiner Moxostoma specios White suckor White sucker Johnny darter 97
1978 1979 111gmouth and sand shinor Bigmouth and nand nhinor Spottin shiner Spotfin shinor 131untnono minnow Illuntnono minnow Spottall shinor Moxontoma npocios Whito nucker 1980 1981 Whito suckor Sand shinor Spotfin shinor Moxontoma specion Johnny darter Spotfin shinor Sand shimor Muntnono minnow Moxotona specion Smallmouth bann 1982 1983 Spotfin shinor Spotfin shinor 111untnoso minnow Sand shinor Sand shinor Moxontoma spacion Smallmouth bann Illuntnono minnow Whito nucker Smallmouth bann It in apparont from comparinonn of thono dominanco rankingn that the spotfin shinor, bluntnono minnow, and nand shinor are tho major forago fish found in thin noction of the rivor.
In 1903 the relativo abundanco of the bluntnono minnow romainod approximately the namo an thono calculated in the 1979 through 1982 surveys.
Spottin shinor and nand nhinorn worn obnorved to havo notable incronson in their relativo abundanco during the 1983 noining survey.
Twonty-eight spacion woro collected in the upntroam noining
- stationn, and 26 woro collected in the downstream noining stationn.
The black bullhund and largomouth bann woro oxclu-nively collected upstronm.
90
I
==
ma rho tako
- cinco, crook
- chub, rivor
- shinor, goldon
- nhinor,
[
northern rodbolly daco, white crappio, 2nd brook ntiekloback l
woro npocion collected in previoun ntudion and not in 1983.
Ilintorically, specion abundanco and divornity havo buon groator in tho thormally influencod portion of the MNGP noining nurvoy.
=
zu In 1983 the convorno wan truo with an averaqo total finh abundanco of 9,708 finh/ha boing collocted upntroam comparod
]
with 7,346 finh/ha in the downntroam nurvoy aroa.
Tablo 6 111untraton the averago abundanco ( f is h/h a.)
of small-mouth bana, whito nuckor, and Moxontoma npp. nince 1973.
Con-parison of th'o 1983 relativo abundanco indicon with thono of
-1 previous survoys suggonte an extromoly poor year of roproductivo g
succonn for nma11 mouth bann and whito suckor.
Abundanco indicon for Moxontoma spp. auggont a year of modorato reproductivo nuccona of thin catagory.
liigh catch raton (Tablos 3 and 4) in May and Juno woro tho major inputn to thono indicon.
Thono catontamida are can tly keyod out to shorthood and nilver rodhorno, gonorally from lato Juno on through tho year.
Thoir relativo abundanco during the July through !ioptember porlod in 1903 typically dropa of f nignificantly duo to early lito stago g
mortality and/or a habitat ohitt.
l flUMMARY j
H A total of 5,729 finh wan collected by noining in tho Minninnip-7 a
pi River noar HNGP in 1903.
Twonty-ono npocios from oight a
familton woro identified.
Thirty-oight spacion from ton familton havo boon identifiod during tho ton nurvoyod years.
No now npocion woro collected in 1983.
5
.g 99 3
c Dominant species in 1982 were:
spotfin
- shiner, blu ntnose m innow,
and sand shiner.
These fish have comprised a major portion of the small fish community throug hou t the 1970-1983 seining surveys.
Preference for the thermally influenced study areas in 1983 was observed for the spotfin shiner, comp ris ing 46 percent of the l$
I*
total catch in this area.
This
- species, although being a
dominant fish in the upstream sector, contributed only 30 percent to the total catch in the ambient study area.
Other species which displayed a preference for the thermal effluent were the northern hogsucker and the smallmouth bass.
Young-of-the-year abundance indices for smallmouth bass and white sucker were down from 1982.
This suggests that 1983 was a poor year for reproductive success and recruitment of these two species.
The Moxostoma spp.
taxon's comparative abundance indices suggests a year of moderate reproductive success for this category in 1983.
^
ACKNOWLEDGEMENTS A special thanks is ~ g'iven-to 'Dr.
J.
C.
Underhill and his Univer-sity of Minnesota staff'for verification of certain specimens.
y 4
s O
y s
1
=
s i'-
i
\\,..
~
s.
9 s
a
=
100 d
f.
l I.
LITERATURE CITED
- Becker, G.C.
and T.R.
Johnson.
1970.
Illustrated Key to the Minnows of Wisconsin.
Wisc. State Univ. Stevens Point, Biol. De p t.
45 pp.
- Eddy, S.
and J.C.
Underhill.
1976.
Northern Fishes. Univ. of Minnesota Press, Mpls.
414 pp.
- Pflieger, W.L.
1975.
The Fishes of Missouri.
Missouri Dept.
of Cons. Pu bl. 343 pp.
- Scott, W.B.
and E.J.
Crossman.
1973.
Freshwater Fishes of.
Canada.
Bull. 184 Fisheries Research Board of Canada, Ottawa.
966 pp.
s 101~-
_ ~. _.......
M-2 f
I CEDAR l
ISLAND b
h M1~
f ISLAND
\\}
l d
PLANT SITE --
DISCHARGE
{
}
CANAL g
Weir l
M-3
!g
)
me.
os Scale-Kilometers
/
ISLAND
/.
BOAT f
LANDING STORAGE f
BUILDING
/
-M-4
/
TaE m L p#
MONTISIPPI PARK
/
Figure 1, 1983 Monticello Seining Station Locations.
l'03
Table 1.
1983 Monticello Seining Study - Species Lists for 1970, 1973, 1976, 1977, 1978, 1979, 1980, 1981, 1982, and 1983.
Species 1970 1973 1976 1977 1978 1979 1980 1981 1982 1983 Northern pike x
x Cisco x
Hornyhead chitb x
x x
x x
x x
x x
x Creek chub x
x x
Fathead minnow x
x x
x x
x x
x Bluntnose minnow x
x x
x x
x x
x x
x Brassy minnow x
x x
Spotfin shiner x
x x
x x
x x
x x
x Bigmouth shiner x
x x
x x
x x
x x
x Sand shiner x
x x
x x
x x
x x
x River shiner x
x Spottail shiner x
x x
x x
x x
x x
Common shiner x
x x
x x
x x
x x
x Golden shiner x
Mimic shiner x
x x
x Carp x
x x
x x
Longnese dace x
x x
x x
x x
x x
Blacknose dace x
x x
x x
x x
Northern redbelly dace x
Silver redhorse x
x x
x x
x x
x x
x Shorthead redhorse x
x x
x x
x x
'x x
x White sucker x
x x
x x
x x
x x
x Northern hogsucker x
x x
x x
Black bullhead x
x Trout perch x
x x
x x
x x
Brook stickleback x
Brook silverside x
x x
x Smallmouth bass x
x x
x x
x x
x x
x Largemouth bass x
x x
x Black crappie x
x x
x x
x x
White crappie x
Rock bass x
x x
x x
x Bluegill x
x x
x x
x x
x Logperch x
x x
x x
x x
x Johnny darter x
x x
x x
x x
x x
x Walleye x
x x
x Yellow perch x
x x
Blackside darter x
x x - Denotes presence 105
m.
,... _ -.. -..... =,..,
biy
?
?
1 i
d:
Table 2.
1983 Monticello Seining Study - Species Percentage Contribution to the Total Catch 1970 through 1983.
i Species 1970 1973 1976 1977 1978 1979 1980 1981 1982 1983
]
Northern pike 0.1 0.1 k
Cisco 0.1 d
Hornyhead chub 3.1
- 1. 7 0.1 3.0 0.1 1.0 1.0 2.0 1.4 2.9 Creek chub 0.3 0.1 0.2 Fathead minnow 0.9
- 0. 6 0.2 0.5 0.1 0.3 0.1 0.3 4
Bluntnose minnow 12.7 16.2 23.4 17.3 40.2 6.8 4.9 7.6 13.0 10.0 2
Brassy minnow 0.3 0.1 0.1 i
Spucfin shiner 21.1 23.5 23.4 16.8 21.9 14.0 11.6 11.7 42.0 34.6 1
Bigaouth shiner 27.3 21.8 12.4 30.8 29.0 57.6 5.9
- 2. 6 3.5 2.7 "i
Sand shiner 18.4 21.6 15.3 8.9 37.6 10.9 24.5 River shiner 6.2 0.5 Spottail shiner
- 1. 0
- 0. 8
- 1. 2 0.2
- 1. 0
- 1. 7 0.1 0.8 0.3 i
Common shiner
- 2. 9 3.4 0.2 1.1 0.8 0.3 0.1 0.8 1.6 0.6 Golden shiner 0.1 Mimic shiner 0.1 0.1 0.1 0.1 Carp 0.5 0.1 0.3 0.1 0.1
=
Longnose dace 3.1
- 0. 7
- 2. 0 1.1 0.1 2.5 3.7 2.1 2.1 1.1 Blacknose dace 0.4 0.3 0.1 0.1 0.4 I
Northern redbelly 3
dace 0.1 Silver redhorse
- 1. 2 0.9 0.1 0.9 0.4 0.1 0.2 i
Shorthead redhorse 0.8 0.1 0.2 0.9 1.1 0.9 0.6 White sucker
- 2. 5
- 3. 9
- 2. 5 7.4 1.4 4.4 32.4
- 2. 6 4.9 1.0 j
Northern hogsucker 0.3
- 1. 7 0.8 1.0 0.9 j
Black bullhead 0.1 0.1 0.1 Trout perch 0.4 0.1 0.9 0.1 0.1
- 2. 2 0.1 Brook silverside 0.1 0.1 0.1 0.2 i
Smallmouth bass 1.7
- 1. 0 0.4 0.3
- 1. 2
- 3. 5 5.8 4.0 5.0
- 2. 0 Largemouth bass O.2 0.1 0.4 0.1 j
Black crappie 0.1 0.6 0.1 0.1 0.1 0.1 0.2 White crappie 0.1 i
Rock bass 0.1 0.2 0.1 0.1 0.1 0.2 5
Bluegill 0.1 0.1 0.3 0.1 0.4 0.1 0.4
[
Yellow perch 3.8 0.1 0.1 0.1 S
Logperch
- 0. 2
- 0. 3 0.2 3.4
- 1. 3 0.1 1.1
]
Johnny darter 5.0
- 2. 6
- 1. 3 6.8
- 1. 3
- 1. 4 9.4
- 2. 9
- 2. 6 0.8 j
Walleye 0.4 0.1 0.1 0.1 Blackside darter 0.1 0.2 Brook stickleback 0.1 1
Shiner spp.
0.3
- 1. 0 0.1 0.6 0.2 4.4 4.4
- 1. 6 Moxostoma spp.
0.3
- 0. 6 16.9 0.6 0.5 5.1 6.3 17.4
- 3. 2 12.8 m
A:
h 2
106 f
3
o A
Table 3.
1983 Monticello. Seining Study - Fish per Hectare - Average - Percent of Catch for the Upstream Survey Area.=
~
Species 5/11 5/24 6/7' 7,/26 8/3 8/18 8/30 9/16 9/29 Average Percent 2.9 0.1
- Northern pike.
.26 Hornyhead chub 256 30 323 605 484 942 336 330.7
- 3. 9 Fathead minnow 239 27 29.6 0.4
'Bluntnose minnow 718 783.
1644 1668 1245 758' 2530 897 437 1186.7 14.2 f
j Spotfin shiner 2870 3572 1585 7346 2624 954 646 1480 1782 2539.9 30.3 743 179 108 303 98 323 628 269 294.6
- 3. 5
- Bigmouth ehiner-Sand shiner 4357 4110 1405 2718 3902 1566
~4575 4081 1648 3151.3 37.6 Spottall shiner 77.
27 135 26.6 0.3 Common. shiner 26 30 27 9.2 0.1 Mimic shiner 45 5.0 0.1 24
- 2. 7 0.1 Carp 51.
60 196 161 45 57.0 0.7 Longnose dace.
Blacknose dace 49 188 359 66.2 0.5 P
Silver redhorse 30 27 90 101 27.6 0.3 E$
Shorthead redhorse 26
-24 27 90 34 22.3 0.3 White sucker 77 49 350 673 67 135.1
- 1. 6 Northern hogaucker 49 27 45 135 28.4 0.3 l
Trout. perch
- 54 6.0 0.1 i
Hr ook silverside-
-26 2.9 0.1
- Smallmouth bass 377 168 220 135 179 34 123.7
- 1. 5
~
Black crappie 77 8.6 0.1 Rock bass' 34 3.8 0.1 l -
Bluegill 34
- 3. 8 0.1 j
Yellow perch 30 27 6.3 0.1 Logperch 1103 24 538 185.0
- 2. 2 l
Johnny: darter 128 196 122 161 314 67 109.8
- 1. 3
( -
Walleye 135 15.0 0.2 Hlackside darter.
242 73 67 42.4 0.5 Shiner spp.
161 135 32.8 0.4 l
Moxostoma spp.
'11,272 4252.4 14.9 l
l l
l
._a
______m__
"I
,b.
I %.
'N$ /,,
. '.? :2.? '. ".:.. ~.
.(,,
\\ $ ' h el k f'.3
...s.,
^
- ? U*I' N :~ U '. -^
Nb Y - l 7 *- ?
' O % l.
- l;..l.'".' * ^. N A 4.E :WM -A.:
-A' T"**.' llA f %'W E S 1' * '
,e U
b.
i 3.**
4=
..i :.
.,s-..
k.;.
7-4; g
t;,
~.
i Table 4 1983 Monticello Seining Study - Fish per liectare - Average - Percent of Catch for Downstream Survey Area.
t
' [.k Species 5/11 5/24 6/7 7/26 8/3 8/18 8/30 9/16 9/29 Average Percent
.f.
llornyhead chub 448 151 111 448 186 72 60 30 30 170.7
- 2. 3
- I a
~3 Fathead minnow 90 108 22.0 0.3 p
Bluntnose minnow 1929 517 334 359 435 18 219 269 568 516.4 7.0 m
brassy minnow 135 15.0 0.2 Spotfin shiner 5113 3143 1206 4365 8506 1345 2033 1196 3289 3355.1 45.7 T
iPgmouth shiner 404 2'/ 8 239 21 100 90 419 172.3
- 2. 3
'q Sand shiner 4889 775 779 1256 145 36 80 30 1286 1030.7 14.0 3
Spotta11 shiner 65 37 20 60 20.2 0.3 g-Common shiner 359 22 90 54 100 60 149 92.7
- 1. 3
.s Mimic shin 3r 37 4.1 0.1 Longnose dace 883 334 135.2 1.8 g.
Blacknose dace 19 2.1 0.1
~7 Silver redhorse 19 30 30 8.8 0.1
- f
- i. -
e St.orthe'ad redhorse 37 30 21 120 478 30 79.6 1.1 White sucker 179 19 60 41 18 30 38.6 0.5 Northern hogsucker 387 93 149 145 36 120 120 116.7 1.6 "g.
Black bullhead 18
- 2. 0 0.1
/
.5 Brook silverside 21 219 26.7 0.4
/.'
Smallmouth bass 45 19 658 538 144 299 90 149 215.8
- 2. 9 q
La rgemouth bass 18 149 18.6 0.3
.(
?
Black crappie 19 60 18 60 17.4 0.2 Rcck bass 72 179 27.9 0.4
. /-
Bluegill 83 108 40 359 65.6 0.9 Logperch 36 4.0 0.1 Johnny darter 186 21 23.0 0.3 a
Wa1leye 30
- 3. 3 0.1 i
j, Shiner spp.
628 538 957 235.9
- 3. 2 Moxostoma spp.
1701 6625 925.1 12.6 p
.Y
, 1' 3
4.
x,
,'r-
"g
- )_.
[.,3
)
N N-j-
______7___________________.....
l
}
p I
I l
l l
Table 5.
1983 Monticello Seining Study - Average Fish per Hectare for 1977 through 1983.
Species 1977 1978 1979 1980 1981 1982 1983 Cisco 3
Northern pike 8
3 1
Hornyhead chub 518 65 92 197 69 251 Creek chub 4
Flathead minnow 30 229 3
35 9
26 Bluntnose minnow 2985 3320 467 431 760 630 852 Brassy minnow 3
7 Spotfin shiner 2909 3563 962 1040 1170 2036 2948 Bigmouth shiner 523 261 167 233 Sand shiner 2661*
4042*
3958*
741 3745 528 2091 Mimic shiner 6
13 4
River shiner 1068 9
31 Spottail shiner 201 329 68 205 9
36 26 Common shiner 197 97 17 6
75 79 51 Carp 14 30 1
1 Longnose dace 185 173 301 205 99 96 Blacknose dace 6
6 34 Northern redbelly dace Silver redhorse 205 24 9
89 37 6
18 Shorthead redhorse 137 14 109 108 43 51 White sucker 1279 23 300 2642 255 238 87 Northern hogsucker 15 187 78 50 73 Black bullhead 2
1 Trout perch 9
5 2
108 6
Brook stickleback 2
Brook silverside 3
28 3
15 Smallmouth bass 57 62 237 552 401 244 170 Largemouth bass 5
38 9
Black crappie 42 5
13 5
3 13 White crappie Rock bass 36 2
3 5
16 Bluegill 6
292 20 20 41 5
35 Yellow perch 5
3 Logperch 647 23 332 129 13 94 Johnny darter 1168 181 98 784 286 125 66 Walleye 9
8 5
4 9
Blackside darter 3
21 Moxostoma spp.
108 170 349 560 1738 155 1089 Shiner spp.
108 41 30 435 214 134 109
e y
A Table 6.
1983 Monticello Seining Study Species Percentage Contribution to Total Catch (Fish / Hectare) for Upstream and Downstream Areas.
Upstream Downstream Sand shiner 37.6%
Spotfin shiner 45.7%
Spotfin shiner 30.3 Sand shiner 14.0 Moxostoma spp.
14.9 Moxostoma spp.
12.6 Bluntnose minnow 14.2 Bluntnose minnow 7.0 Hornyhead chub
- 3. 9 Shiner spp.
- 3. 2 Bigmouth shiner
- 3. 5 Smallmouth bass
- 2. 9 Log perch
- 2. 2 Hornyhead chub
- 2. 3 White sucker
- 1. 6 Bigmouth shiner
- 2. 3 Smallmouth bass 1.5 Longnose dace
- 1. 8 Johnny darter
- 1. 3 Northern hogsucker
- 1. 6 Blacknose dace 0.8 Common shiner
- 1. 3 4
Longnose dace 0.7 Shorthead redhorse 1.1 Blackside darter 0.5 Bluegill 0.9 Fathead minnow 0.4 White sucker 0.5 Shiner spp.
0.4 Brook silverside 0.4 Spottail shiner
- 0. 3 Rock bass 0.4 Silver redhorse 0.3 Spottail shiner 0.3 e
Northern hogsucker 0.3 Johnny darter 0.3 Shorthead redhorse 0.3 Fathead minnow 0.3 Wa1leye 0.2 Largemouth bass 0.3 Northern pike 0.1 Black crappie 0.2 Common shiner 0.1 Brassy minnow 0.2 I.
Mimic shiner 0.1 Mimic shiner 0.1 Carp 0.1 Blacknose dace 0.1 Brook silverside 0.1 Silver redhorse 0.1 Black crappie 0.1 Black bullhead 0.1 Rock bass 0.1 Logperch 0.1 Bluegill 0.1 Walleye 0.1 Yellow perch 0.1 Trout perch 0.1 a
110
i O
Table 7.
1983 Monticello Seining Study Average number of smallmouth bass, white sucker, and Moxostoma spp.
collected per hectare in upstream and downstream areas in 1973, 1974, 1976", 1977, 1978, 1979, 1980, 1981, 1982, and 1983.
Smallmouth bass Upstream Downstream Fish /ha Fish /ha Average 1973 256 92 174 1974 380 152 266 1976 135 1977 101 12 56 1978 101 167 134 1979 9
465 237 1980 237 927 582 1981 61 741 401 1982 668 309 489 1983 124 216 170 White sucker 1973 1881 1416 1648 1974 250 78 164 1976 1501 1977 2401 157 1279 1978 240 65 152 1979 364 236 300 1980 4003 2548 3276 1981 455 55 255 1982 697 257 477 1983 135 39 87 Moxostoma spp.
1973 989 1140 1064 1974 841 797 819 1976 9823 1977 405 494 450 1978 201 125 163 1979 103 179 141 1980 1124 515
-820 1981 2950 814 1882 1982 693 127 410 1983' 1302 1014 1158
7
?
/
1 l1 I
.t Table 8.
1983 Monticello Seining Study Species List of Fish i
Discussed in this Test.
y
_+
5*
Common Name Scientific Name Northern pike Esox lucius Cisco Coregonus artedi Hornyhead chub Nocomis biguttus 7
Creek chub Semotilus atromaculatus y
Fathead minnow Pimephales promelas 5
Bluntnose minnow Pimephales notatus
'T Brassy minnow Hybognathus hankinsoni Spotfin shiner Notropis spilopterus W
Bigmouth shiner Notropis dorsalis E!
Sand shiner Notropis stramineus River shiner Notropis blennius i
=
Spottail shiner Notropis hudsonius J
Common shiner Notropis cornutus r-Golden shiner Notemigonus crysoleucas K
Mimic shiner Notropis volucellus 3
1 Carp Cyrpinus carpio Longnose dace Rhinichthys cataractac 1
Blacknose dace Rhinichthys atratulus g
Northern redbelly dace Chrosomus eos 4
Silver redhorse Moxostoma anisurum Shorthead redhorse Moxostoma macrolepidotum 8
White sucker Catostomus commersoni i
Northern hogsucker Hypentelium nigricans 5
Black bullhead Ictalurus melas
}
Trout perch Percopsis omiscomaycus 3
Brook stickleback Culaea incon3 tans Brook silverside Labidesthes sicculus k
Smallmouth bass Micropterus dolomieui 3
Largemouth bass Micropterus salmoides j
Black crappie Pomoxis nigromaculatus j
White crappie Pomoxis annularis g-Rock bass Ambloplites rupestris 1
Bluegill Lepomis macrochirus Yellow perch Perca flavescens a
Logperch Percina caprodes Johnny darter Etheostoma nigrum
--)
Walleye Stizostedion vitreum j
Blackside darter Percina maculata
[.
4 3
m i
k, 112
- 4
) lYl 6 Northern Statps Power Company 414 Nicollet Mall Minneapolis. Minnesota 55401 Telephone (612) 330-5500 April 3, 1984 PRINCIPAL STAFF 1A 9 pap J/RA 3E
/ ~ ff
' / R t' Mr. J. G. Keppler, Regional Administrator C
Region III
=
g39
_g3 U S Nuclear Regulatory Commission SGA t
799 Roosevelt Road vp-F_f le i
Glen Ellyn, Illinois 60137 Monitcello Nuclear Generating Plant Docket No. 50-263 License No. DPR-22 1983 Environmental Monitoring and Ecological Studies Program Report
+
The enclosed report covers the results of Northern States Power Company's
- I non-radiological environmental surveillance activities for 1983.
One copy of this report is being submitted to you in accordance with Technical Specifications Item 6.7.C.2.
~ml Fred L. Fey General Superintendent Radiation Protection and Chemistry cc: USNRC DCD (18)
G Charnoff
/d 'o76 MPCA Attn: J W Ferman l
Attachment LAPR 16 G84 gdw BWC040284GDWO3
(