Upper Midwest Environmental Sciences Center
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Bertrand, B. A. (1997). Changes in the Mississippi River fishery along Illinois, 1976-1996. Journal of Freshwater Ecology. 12:585-597.
In the 1970s the Great River Environmental Action Team (GREAT) proposed a long-range management strategy for the Mississippi River. GREAT predicted that backwater habitat would be lost and the fishery would decline riverwide over a 50-year period unless management changed. Twenty years into that 50-year period, long term data from fisheries monitoring along 581 miles of the river bordering Illinois has been gathered. From 1976-95, 483 electrofishing collections totaling 125,503 fish of 98 species were made at 33 locations. Species richness and catch per unit of effort analyses indicate that certain backwater fish species have declined, while river channel species have increased in number and frequency of occurrence.
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://www.umesc.usgs.gov/data_library/fisheries/fish_passage/bertrand.html
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Page Last Modified:
November 3, 2015
