A summary of fish data in six reaches of the Upper Mississippi River System, 1998


Burkhardt, R. W., S. DeLain, E. Kramer, A. Bartels, M. C. Bowler, F. A. Cronin, M. D.
Petersen, D. P. Herzog, T. M. O'Hara, and K. S. Irons. 2000. 1998 Annual Status
Report: A summary of fish data in six reaches of the Upper Mississippi River System.
U.S. Geological Survey, Upper Midwest Environmental Sciences Center, La Crosse,
Wisconsin, June 2000. LTRMP 2000-P004. 14 pp. + Chapters 1 6 (NTIS # PB2000-106952)

ABSTRACT

The Long Term Resource Monitoring Program (LTRMP) completed 2,664 collections
of fishes from stratified random and permanently fixed sampling locations in six study
reaches of the Upper Mississippi River System during 1998. Collection methods
included day and night electrofishing, hoop netting, fyke netting (two net sizes), gill
netting, seining, and trawling in select aquatic area classes. The six LTRMP study
reaches are Pools 4 (excluding Lake Pepin), 8, 13, and 26 of the Upper Mississippi
River, an unimpounded reach of the Mississippi River near Cape Girardeau, Missouri,
and the La Grange Pool of the Illinois River. A total of 63 75 fish species were detected
in each study reach. For each of the six LTRMP study reaches, this report contains
summaries of (1) sampling efforts for each combination of gear type and aquatic area
class, (2) total catches of each species from each gear type, (3) mean catch-per-unit of
effort statistics and standard errors for common species from each combination of
aquatic area class and selected gear type, and (4) length distributions of common
species from selected gear types.

KEYWORDS

1998 annual report, fish, LTRMP, Mississippi River