|
|
The Long Term Resource Monitoring Program (LTRMP) fish component monitors fish communities to test for changes in abundances and species composition in six regional trend areas of the Upper Mississippi River System. Using these data, we evaluated the ability of the LTRMP to detect changes in the fish community as a consequence of a habitat-enhancement project in La Grange Pool of the Illinois River. In 1996, initial phases of the Chautauqua National Wildlife Refuge Habitat Rehabilitation and Enhancement Project (HREP) south cell construction were completed with the goal of improving fish habitat in the pool. That year, an estimated 46 million fish representing 34 species were produced and discharged from the south...
|
The Illinois River Biological Station monitors fish communities in the Illinois River using two different electrofishing programmes, one using three-phase alternating current [AC; The Long Term Illinois Fish Population Monitoring Program or long-term electrofishing (LTEF)] and the other pulsed direct current [DC; The Long Term Resource Monitoring Program (LTRMP)]. In 2001, we replicated three-phase AC sampling sites with pulsed-DC electrofishing gear to test for differences between the two collection methods and programmes. Electrofishing runs at each site were standardized by length and time, with 48 samples collected for each gear. Our objective was to test for differences in fish catch rates using total catch,...
|
|
