Asian Carp Sampling Summary - Week of July 11, 2011

A sampling summary for the week of July 11, 2011 is included below.  Note that these data are field summaries that are provisional and subject to revision pending thorough review.

Bottom Line:  Much work was again completed this week.  No bighead or silver carp were captured or observed upstream of the Dispersal Barrier nor were any found in new locations downstream of the Barrier.

Fixed Site Sampling Upstream of the Dispersal Barrier

Site 1: Lake Calumet

Site 2: Little Calumet River

Site 3: Chicago Sanitary and Ship Canal (CSSC), South Branch Chicago River

Site 4: North Branch Chicago River, North Shore Channel

Site 5: North Shore Channel

One USFWS-Carterville electrofishing boat and crew and two commercial fishing boats and crews with IDNR biologists sampled the five fixed sites above the Dispersal Barrier during July 11-14.  Sample effort included a total of 48 electrofishing runs (15 minutes each; 12.0 hours total) and 17 trammel net sets (200-500 yards/set; 5,800 yards total).  A combined total of 5,702 fish representing 41 species and 2 hybrid groups were sampled during the effort.  No bighead or silver carp were captured or seen. 

DC Electrofishing

Species Site 1 Site 2 Site 3 Site 4 Site 5 All sites
Gizzard shad >6.0 in. 39 342 217 457 5 1060
Gizzard shad <6.0 in.   218 98 80 1 397
Common carp 41 565 150 40 50 846
Pumpkinseed 10 355 109 15 233 722
Spotfin shiner   1 424 136 55 616
Bluegill 13 129 94 80 297 613
Golden shiner   24 118 27 87 256
Largemouth bass 43 58 29 10 61 201
Bluntnose minnow 1 1 29 35 88 154
Green sunfish   14 46 16 28 104
White sucker   11 4 45 18 78
White perch 1 53 1     55
Emerald shiner 3 1 41 6   51
Alewife   1 22 4 23 50
Goldfish   38 6 1 2 47
Fathead minnow     24   4 28
Freshwater drum   26       26
Yellow bullhead 1 11 1 6 1 20
Black bullhead   13 4 2 1 20
White bass 4 9 1     14
Channel catfish 11 1   1   13
Yellow perch 6 2     5 13
Black buffalo 2 10       12
Orangespotted sunfish   3 9     12
Blackstripe topminnow       1 11 12
Rock bass         11 11
Smallmouth bass 2 7       9
Round goby 2     3 2 7
Oriental weatherfish     4   3 7
Brown bullhead   1 3 3   7
Brook silverside 1 5       6
Hybrid sunfish     2   3 5
White crappie   5       5
Spottail shiner 1   1   1 3
Yellow bass 1 2       3
Central mudminnow   1   1 1 3
Carp x goldfish hybrid         1 1
Quillback   1       1
Creek chub         1 1
Rainbow trout         1 1
Bowfin         1 1
All species 182 1908 1437 969 994 5490

Trammel Netting

Species Site 1 Site 2 Site 3 Site 4 Site 5 All sites
Common carp 74 39 30 3 21 167
Freshwater drum 15         15
Carp x goldfish hybrid     12   1 13
Black buffalo 7         7
Gizzard shad >6.0 in. 3         3
Smallmouth buffalo 2         2
Goldfish     1     1
Channel catfish 1         1
Largemouth bass 1         1
Grass carp 1         1
Flathead catfish 1         1
All species 105 39 43 3 22 212

Fixed Site Sampling Downstream of the Dispersal Barrier

Site A:  Lockport Pool – Lockport Lock and Dam to Electric Barrier

Site B:  Brandon Road Pool – Brandon Road Lock and Dam to Lockport Lock and Dam

Site C:  Dresden Island Pool – I-55 Bridge to Brandon Road Lock and Dam

Site D:  Marseilles Pool – Rt. 47 Bridge (Morris) to Dresden Lock and Dam

One IDNR electrofishing boat and crew and one USACE – Chicago District electrofishing boat and crew sampled the four fixed sites below the Dispersal Barrier During July 11-20 and two commercial fishing boats and crews with IDNR biologists sampled the same fixed sites with trammel nets on July 14.  Sample effort included a total of 16 electrofishing runs (four 15-minute runs/site; 4.0 hours total) and 16 trammel/gill net sets (200-400 yards/set; 3,600 yards total).  The combined catch among gears was 771 fish representing 42 species and 2 hybrid groups.  No bighead or silver carp were collected or observed in the Lockport, Brandon Road, and Dresden Island pools.  Five silver carp were captured by electrofishing were captured by electrofishing in the Marseilles Pool.  Commercial fishers sampled five bighead and seven silver carp from the Marseilles Pool. 

A catch summary is listed below.

DC Electrofishing

Species Site A Site B Site C Site D All sites
Gizzard shad < 6″ 234 12 33 6 285
Gizzard shad > 6″ 22 21 15 21 79
Common carp 22 33 6 6 67
Bluegill   7 30 17 54
Green sunfish 8 6 27 5 46
Pumpkinseed 13 7 1 2 23
Largemouth bass 2 1 6 7 16
Golden redhorse       11 11
Smallmouth buffalo     7 3 10
Hybrid sunfish 4 2 3   9
Spotfin shiner   1   8 9
Yellow bullhead   3 4   7
Emerald shiner   3   4 7
White sucker   6     6
Silver carp       5 5
River carpsucker       5 5
Smallmouth bass   1 3 1 5
Yellow bass       5 5
Channel Catfish   1 2 1 4
Longnose gar 1   1 1 3
Quillback       3 3
Bluntnose minnow   1   2 3
Longear sunfish     1 2 3
Logperch       3 3
Goldfish   1 1   2
Freshwater drum     1 1 2
Shorthead redhorse       2 2
Orangespotted sunfish     1 1 2
Spottail shiner       2 2
Golden shiner   1   1 2
Flathead Catfish       1 1
Silver redhorse       1 1
Northern hog sucker       1 1
White crappie 1       1
White bass       1 1
Walleye       1 1
Grass pickerel 1       1
Suckermouth minnow     1   1
Warmouth     1   1
Blackstriped topminnow 1       1
All species 307 107 141 125 680

Trammel Netting

Species Site A Site D Site C Site D All sites
Common carp 4 10 17 2 33
Smallmouth buffalo     29   29
Silver carp       7 7
Freshwater drum     6   6
Bighead carp       5 5
Bigmouth buffalo       5 5
Grass carp     1 2 3
Carp x goldfish hybrid   1     1
Channel catfish     1   1
Skipjack herrring     1   1
All species 4 11 55 21 91

Additional Netting For Asian Carp Downstream of the Dispersal Barrier

Two commercial fishing boats and crews with IDNR biologists sampled with trammel nets downstream from Treats Island in Dresden Island Pool on July 15.  Sample effort included six trammel/gill net sets (250-400 yards/set; 1,350 yards total) and the total catch was 27 fish representing 6 species.  No Asian carp were captured during this sampling effort.

A catch summary is listed below.

Species Number
Common carp 15
Smallmouth buffalo 5
Bigmouth buffalo 3
Freshwater drum 2
Grass carp 1
Longnose gar 1
All species 27

eDNA Monitoring Project

One USFWS-Columbia boat and crew obtained 100 water samples (plus six control samples) for eDNA analysis from Lake Calumet and the Calumet River/Little Calumet River on July 12.  Samples were filtered at the USEPA lab in Chicago and forwarded to ERDC in Vicksburg, MS for analysis.  Results of eDNA analysis will be reported on the USACE web site listed below as they become available.

http://www.lrc.usace.army.mil/AsianCarp/eDNA.htm

Barrier Defense Asian Carp Removal Project

Dresden Island Pool:  10-24 miles downstream from Dispersal Barrier

Marseilles Pool:  24-51 miles downstream from Dispersal Barrier

Starved Rock Pool:  51-65 miles downstream from Dispersal Barrier

Five commercial fishing boats and crews and five IDNR observers fished a combined 28,700 yards of net from Tuesday-Friday, July 12-15.  Netting effort focused on the Marseilles Pool near Morris (21,600 yards of net), but also took place in Starved Rock Pool (7,100 yards of net).  A total of 1,409 bighead carp and 584 silver carp were removed during the effort.  The combined harvest for both species was 40,620 pounds and 73% of this total was taken from the Marseilles Pool.  A 2011 cumulative removal summary for all locations combined is included below.

QUICK SUMMARY:    
Number of Days Fished 23 days
Number of Net Crews 115 crew-days
Miles of Nets Fished 103.1 miles
Number of Bighead Carp 10,691 fish
Number of Silver Carp 5,237 fish
Number of Grass Carp 5 fish
Number of Asian Carp (AC) 15,933 fish
Tons of AC Harvested 160.2 tons
Average number AC per 1,000 yards net 81.6 fish

Larval Fish, zooplankton, and Productivity Monitoring

From July 11-15, two INHS boats and crews again sampled larval fish, zooplankton, and water quality from 21 locations on the Illinois River, lower Des Plaines River, and CAWS.  This sampling effort included all of the 21 sites designated for larval fish/productivity sampling.  Samples are currently being processed and results will be made available upon completion of sample processing.

Gear Evaluation Study
One INHS boat and crew sampled with multiple gears in the Dresden Island Pool near I-55 (approximate river mile = 278) and the Marseilles Pool near Morris (approximate river mile = 261) from July 11-15.   A combined total of 1,717 fish from representing at least 41 species and 2 hybrid groups were sampled.  Three bighead carp were sampled in Dresden Island Pool and 32 bighead carp and 12 bighead x silver carp hybrids were sampled from the Marseilles Pool.  All captured Asian carp were adults.

A summary of sampling effort and combined catch for all gears is listed below.

Gear/Method Effort
DC electrofishing 6 x 15-min. runs
Trammel net w/ pounding 4 sets
Small mesh gill net -sinking 4 x 4-hr. sets
Small mesh gill net -floating 4 x 4-hr. sets
Large mesh gill net -sinking 4 x 4-hr. sets
Small mesh hoop net 8 net-nights
Large mesh hoop net 8 net-nights
Trap net 8 net-nights
Mini fyke net 8 net-nights
Small mesh purse seine 4 hauls
Large mesh purse seine 4 hauls
Beach seine 4 hauls

 

Dresden
Marseilles Island All
Species Pool Pool sites
Red shiner 346 4 350
Gizzard shad 268 16 284
Bluntnose minnow 73 110 183
Bluegill 74 91 165
Channel catfish 49 22 71
Steelcolor shiner 60   60
Bullhead minnow 60   60
Common carp 17 31 48
Sand shiner 41   41
Emerald shiner 39 1 40
Bighead carp 32 3 35
Smallmouth buffalo 22 8 30
Largemouth bass 14 11 25
Skipjack herring 14 3 17
White bass 10 6 16
River carpsucker 13   13
Bighead x Silver carp hybrid 12 12
Round goby 7 5 12
Freshwater drum 9 1 10
Spottail shiner 8 1 9
Green sunfish   9 9
Spotted gar 5 2 7
Longnose gar 3 2 5
Goldeye 4   4
Orangespotted sunfish 3 1 4
Quillback 3   3
Flathead catfish 3   3
Brook silverside 3   3
Pumpkinseed   3 3
Rockbass   3 3
Shortnose gar 2   2
Spotfin shiner 2   2
Bigmouth buffalo 2   2
Yellow bullhead   2 2
Black buffalo 1   1
Shorthead redhorse 1   1
Silver redhorse 1   1
White perch 1   1
Smallmouth bass   1 1
Hybrid sunfish   1 1
White crappie 1   1
Sauger 1   1
Rainbow darter 1   1
Unidentified fish 127 48 175
All species 1332 385 1717


 

 

Asian Carp Regional Coordinating Committee