Spatial and Temporal Variability of Channel Catfish Populations in the Upper Mississippi River System.
Abstract
One application of Long Term Resource Monitoring Program (LTRMP) data is to evaluate long term trends in channel catfish (Ictalurus punctatus Rafinesque 1818) populations. This species is an important component of the Upper Mississippi River System (UMRS) fish community because it is numerally abundant, it comprises a significant portion of the total fish biomass, and it is avidly sought by both sport anglers and commercial harvesters. Since 1989, biologists at the LTRMP Field Stations have monitored fish population and community structure at six pools and in multiple aquatic habitat types of the UMRS. These pools include the tailwater, impounded, side channel, main channel, and backwater habitats defined by navigation lock and dam 4, 8, 13, and 26 of the Mississippi River; the Open" Mississippi River near Cape Girardeau, Missouri; and La Grange Pool of the Illinois River near Havana, Illinois. Both Pool 26 (at Alton, Illinois) and La Grange Pool Field Stations are operated by the Illinois Natural History Survey (INHS).
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1998
- Accession Number
- ADA357632
Entities
People
- Todd M. Koel
Organizations
- Illinois Natural History Survey