• Little Calumet River Near O’Brien Lock
•
•
•
•
•
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and Dam
Rotenone sample area = 2.6 miles of
channel or 150 surface acres of water
Eleven nets (total = 16,800 feet) set
May 20, run and reset May 21 and 22,
and pulled May 23
Water samples for eDNA analysis
collected morning of May 20
DC electrofishing for sport fish for a
total of 20 hours on May 12
No Asian carp captured or seen
No Asian carp DNA detected
Trammel and gill net locations for sampling conducted May
20 – May 23, 2010 by commercial fishermen Ron Brown and
John Ahrling. Nets were 300-600 feet long x 5-12 ft. deep
with bar mesh sizes ranging from 2.5 -3.5 inches.
JA – 01
JA – 02
JA – 03
JA – 04
RB - 03
RB - 05
RB - 07
RB - 01
RB - 02
RB - 06
RB - 04
Rotenone Fish Recovery Summary
Number of individuals
Number of species
Hybrid groups
Total weight recovered (pounds)
Standing stock (lbs./acre)
67,224
38
2
97,720
565
Commercial Net Sample Totals
Species
Number Percent
Common carp
561
59.3
Freshwater drum
174
18.4
Gizzard shad
148
15.6
Channel catfish
33
3.5
Black buffalo
16
1.7
Goldfish
5
0.5
Carp x Goldfish hybrid
5
0.5
Yellow bullhead
2
0.2
Yellow bass
1
0.1
White perch
1
0.1
Electrofishing Sample Totals
Species
Number Percent
Alewife
7
1.1
Black buffalo
2
0.3
Black bullhead
1
0.2
Bluegill
11
1.7
Bluntnose minnow
44
7
Channel catfish
17
2.7
Common carp
216
34.1
Emerald shiner
61
9.6
Fathead minnow
9
1.4
Freshwater drum
5
0.8
Gizzard shad
76
12
Golden shiner
1
0.2
44
3
Goldfish
Green sunfish
Species
Number Percent
Rainbow trout
1
0.2
Rock bass
3
0.5
46
7.3
Weather loach
1
0.2
White bass
2
0.3
White crappie
1
0.2
White perch
24
3.8
White sucker
7
1.1
Yellow bass
2
0.3
Yellow bullhead
2
0.3
7
Yellow perch
4
0.6
0.5
Total number
633
100
Round goby
Rotenone Fish Recovery
Species List
Species
Gizzard shad
Common carp
Ghost shiner
Emerald shiner
Alewife
Freshwater drum
Bluntnose minnow
Goldfish
Round goby
Channel catfish
Rock bass
Pumpkinseed
White perch
Bluegill
Spotfin shiner
Golden shiner
Yellow bullhead
Black crappie
Fathead minnow
White crappie
Number Percent
22298
33.2
9820
14.6
6945
10.3
4342
6.5
3485
5.2
3178
4.7
2374
3.5
2293
3.4
2109
3.1
1959
2.9
1244
1.8
1098
1.6
1059
1.6
783
1.2
464
0.7
434
0.6
366
0.5
333
0.5
325
0.5
319
0.5
Species
White sucker
Yellow perch
Black bullhead
Largemouth bass
Spottail shiner
Black buffalo
Orangespotted sunfish
White bass
Goldfish x Common carp hybrid
Green sunfish
Smallmouth bass
Grass carp
Warmouth
Smallmouth buffalo
Yellow bass
Brown bullhead
Flathead catfish
Grass pickerel
Hybrid sunfish
Number Percent
319
0.5
268
0.4
264
0.4
219
0.3
213
0.3
205
0.3
174
0.3
82
0.1
53
0.1
49
0.1
45
0.1
43
0.1
18
<0.1
12
<0.1
10
<0.1
8
0.0
8
<0.1
2
<0.1
2
<0.1