Upper Midwest Environmental Sciences Center
2003 Report
La Grange Pool, Illinois River 2003 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 2003. Information on changes in fish catch over all years can be obtained from the Graphical Fish Database Browser.
- The Illinois Department of Natural Resources provided funding for all LTRMP fisheries sampling completed in 2003 (all gears, all sampling periods).
- 354 fish collections were conducted using six gear types (Table
2.6).
- Water levels did not affect sample allocations. All gear allocations
were completed for all three sampling periods (Table 2.6; Figure 1.6).
- Peoria Lock and Dam was the only tailwater site sampled in 2003 (Table
2.6). From 1995 until 2002, La Grange Lock and Dam tailwater site
was sampled and data from both tailwater sites were combined for analysis.
- Side channel border received the most sampling effort (Table
2.6).
- 34,607 fish were collected representing 64 species and 4 hybrids (Table
3.6).
- 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 for La Grange Pool collected by LTRMP through
2002 is 85 species and 9 hybrids (Table 3.6).
- 8 non-native species (and 3 non-native hybrids) have been collected
by LTRMP monitoring of La Grange Pool; all of these were collected
in 2003.
- No federal or state threatened or endangered species have been collected
by LTRMP monitoring of La Grange Pool.
- Mean catch-per-unit-effort and standard error for fish collected
by gears using stratified random (Tables
4.6–11.6) and fixed-site sampling (Tables
14.6–21.6) for each stratum are shown.
- Length distributions for selected species of fish are shown in Figures
1 to 17.
Content manager: Jennie Sauer
Page Last Modified: April 17, 2018