Multiyear synthesis of the fish component from 1993 to 2002 for the LTRMP

Ickes, B. S., M. C. Bowler, A. D. Bartels, D. J. Kirby, S. DeLain, J. H. Chick, V. A. Barko, K. S.
Irons, and M. A. Pegg. 2005. Multiyear synthesis of the fish component from 1993 to 2002 for
the Long Term Resource Monitoring Program. U.S. Geological Survey, Upper Midwest
Environmental Sciences Center, La Crosse, Wisconsin. LTRMP 2005 T005. 60 pp. + CD-ROM
(Appendixes A E).

ABSTRACT

Fisheries data are collected in the Upper Mississippi River System (UMRS) under the Long Term
Resource Monitoring Program (LTRMP). From 1993 to 2002, monitoring activities were
conducted at six primary study areas in the UMRS, Navigation Pools 4, 8, 13, 26, and the Open
River reach in the Mississippi River and the La Grange Pool in the Illinois. The monitoring
began with LTRMP in 1989 for all study areas except the Open River reach, which began in
1991. Since 1993, LTRMP staff have completed 24,791 samplings in the 6 study areas and
collected more than 3 million fish of 134 species. From 1993 to 2002, the most fish species (98)
were collected in the Open River reach and the fewest species (83) collected in Pool 13. 

KEYWORDS

Fish community structure, habitat, Illinois River, Long Term Resource Monitoring Program,
Mississippi River, native species, nonnative species, stratified random sampling