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Sylvester, J. R. and J. D. Broughton (1983). Distribution and relative abundance of fish in Pool 7 of the Upper Mississippi River. North American Journal of Fisheries Management. 3:67-71.
The distribution and relative abundance of fish species in Pool 7 of the Upper Mississippi River near Dresbach and Dakota, Minnesota were compared in three habitat types on the basis of catches in hoop nets and gill nets. Habitat types included the main channel, side channels, and backwater areas. A total of 36 species was collected. Twenty-four species and 14% of the total number of individual fish caught were collected in the main channel. Thirty species and 33% of the total number caught were captured in the side channel, and 28 species and 53% of the total number caught were collected in the backwater areas. The species caught most frequently were not limited to a particular habitat, but were perhpas relatively more accessible to gill nets and hoop nets in backwater habitats. The low relative abundance of species and individual fish in the main channel suggested a lower habitat diversity there than in the side channel and backwater areas.
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://www.umesc.usgs.gov/URL: http://www.umesc.usgs.gov/data_library/fisheries/fish_passage/sylvester.html
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