Upper Midwest Environmental Sciences Center
2003 Report
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Table 11.6 |
Mean catch-per-unit-effort and (standard error) for fish collected by large hoop netting in La Grange Pool of the Illinois River using stratified random sampling during 2003. The statistics under ALL pertain to unbiased means over all strata sampled by this gear (as indicated by nonmissing entries below and by Table 2.6). See Methods for definitions of catch-per-unit-effort and standard error. Scientific names for the species listed can be found in Table 1. |
| Common name | ALL | MCBU | SCB |
| Shortnose gar | 0.04 | 0.04 | 0.03 |
| (0.04) | (0.04) | (0.03) | |
| Gizzard shad | 0.06 | 0.06 | 0.08 |
| (0.03) | (0.03) | (0.08) | |
| Grass carp | 0.06 | 0.06 | 0.06 |
| (0.04) | (0.05) | (0.04) | |
| Common carp | 2.81 | 2.65 | 5.35 |
| (0.82) | (0.87) | (1.55) | |
| Bighead carp | 0.11 | 0.10 | 0.17 |
| (0.05) | (0.05) | (0.08) | |
| River carpsucker | 0.06 | 0.06 | 0.03 |
| (0.04) | (0.05) | (0.03) | |
| Smallmouth buffalo | 4.39 | 4.42 | 3.93 |
| (0.98) | (1.04) | (1.63) | |
| Black buffalo | 0.02 | 0.02 | 0.03 |
| (0.02) | (0.02) | (0.03) | |
| Brown bullhead | 0.02 | 0.02 | |
| (0.02) | (0.02) | ||
| Channel catfish | 0.71 | 0.73 | 0.49 |
| (0.20) | (0.22) | (0.22) | |
| Flathead catfish | 0.10 | 0.10 | 0.06 |
| (0.05) | (0.05) | (0.04) | |
| White bass | 0.03 | 0.02 | 0.12 |
| (0.02) | (0.02) | (0.09) | |
| Sauger | 0.00 | 0.03 | |
| (0.00) | (0.03) | ||
| Freshwater drum | 0.42 | 0.44 | 0.06 |
| (0.23) | (0.25) | (0.04) |
Sampling strata:
MCBU - Main channel border, unstructured
SCB - Side channel border
September 27, 2004
Page Last Modified: April 17, 2018