Habitat partitioning in a community of darters in the Elk River, West Virginia |
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Authors: | Stuart A Welsh Sue A Perry |
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Institution: | (1) West Virginia Cooperative Fish and Wildlife Research Unit, Biological Resources Division, U.S.G.S., West Virginia University, POB 6125, Morgantown, WV, 26506, U.S.A.;(2) Present address: Everglades National Park, 40001 State Road 9336, Homestead, FL, 33034-6733, U.S.A |
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Abstract: | Microhabitat use and habitat partitioning for 10 darter species (Percidae: Etheostomatini) were studied by direct observation (snorkeling) at five sites in the Elk River drainage, West Virginia, U.S.A. We used canonical discriminant analysis and univariate tests to determine microhabitat variables that were important in segregating species. Darter species were segregated by depth, substrate size, and water velocity. In addition, Percina typically occurred in the water column, whereas species of Etheostoma were benthic and segregated by occurring under, between, and on top of rocks. |
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Keywords: | resource use microhabitat Percina Etheostoma fishes |
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