Upper Midwest Environmental Sciences Center
La Grange Pool, Illinois River 2005 Fish Collection Summary
This report is a bullet summary of the Long Term Resource Monitoring Program's (LTRMP) fish collection efforts conducted by the Havana Field Station on La Grange Pool, Illinois River during 2005. Information on changes in fish catch over all years can be obtained from the Graphical Fish Database Browser.
- 240 fish collections were conducted using six gear types (Table
2.6).
- Side channel border received the most sampling effort (Table
2.6).
- In 2005, water levels were lower than normal during April and early
May (typically the peak flood period), but considerably higher than
normal during late May and June. Water levels did not affect sample
allocations. All gear allocations were completed for all sampling
periods (Table 2.6; Figure
1.6).
- 18,327 fish were collected representing 57 species and 4 hybrids (Table
3.6).
- The first collection of lake sturgeon, spotfin shiner, and green sunfish x redear sunfish hybrid from La Grange Pool occurred in 2005.
- Historical fish distribution records for La Grange Pool of the Illinois
River (Smith 1979) document 115 fish species from La Grange Pool.
- The LTRMP species total is 89 species and 9 hybrids (Table 3.6).
- Six nonnative species (and 2 nonnative hybrids) we collected in 2005.
- No Federal or state threatened or endangered species have been collected
by LTRMP monitoring in La Grange Pool.
- Mean catch-per-unit-effort and standard error for stratified random
and fixed-site sampling for each stratum are shown in La
Grange Pool tables. Length distributions for selected species of
fish are shown in Figures 1
to 17.
Content manager: Jennie Sauer
Page Last Modified: April 17, 2018