A COMPARISON OF FISHERIES TRENDS INDICATED BY THREE
CONCURRENT MONITORING PROGRAMS IN THE UPPER MISSISSIPPI
RIVER.

Mark Stopyro1, Al Stevens2 and Dan Dieterman2
1Minnesota Department of Natural Resources, Long Term Resource Monitoring
Program, 1801 S. Oak St., Lake City, MN 55041  2Minnesota Department of
Natural Resources, Section of Fisheries, 1801 S. Oak St., Lake City, MN 55041

Since the adoption of stratified random sampling by the fish component of the
Long Term Resource Monitoring Program (LTRMP), concerns have been raised
about the detection of trends in abundance and population characteristics of
important species.  This presentation will address questions about the
comparability of trends indicated by data collected by the LTRMP and by the
fisheries management section of the Minnesota Department of Natural Resources
(MN DNR).

We will compare trends in year class strength, relative abundance and population
structure of selected species among three independently and concurrently
collected data sets.  Databases to be included in this analysis are: 1) Long Term
Resource Monitoring Program, Pool 4-MN Field Station, 1990-96; 2) Lake Pepin
(Pool 4) Large Lake Monitoring Program, MN DNR-Section of Fisheries,
1986-96; 3) Major River Surveys, Mississippi River Pools 3, 5-7, and 9, MN
DNR-Section of Fisheries, 1993-96.

Keywords: fisheries trends, LTRMP, Mississippi River, walleye, centrarchids



Mark Stopyro, Minnesota Department of Natural Resources, Long Term Resource
Monitoring Program, 1801 South Oak St., Lake City, MN  55041; Tel: 612-345-3331; Fax: 612-345-3975; E-mail: mark_stopyro@nbs.gov

Poster (no)
Non-student