Southeastern Fishes Council
SFC Abstracts
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Stream Fish Assemblages in Arkansas Uplands: Quantifying Variance in Space and Time by use of Historical Collections
WILLIAM J. MATTHEWS1, HENRY W. ROBISON2, and EDIE MARSH3
1University of Oklahoma Biological Station, Kingston, OK 73439;
2Biology Department, Southern Arkansas University, Magnolia, AR 71753;
3Department of Biology, San Angelo State University, San Angelo, TX 76904
Ichthyological collections made by the authors and others provide a robust data base of information on fish distributions and abundances at sites on streams throughout the Ozark and Ouachita mountains of Arkansas. Collections over time at multiple sites in Piney Creek, Izard County, indicate the magnitude of differences in fish assemblages within one well studied watershed over space (12 locations), time (20+ years), and disturbances (100-year flood). Geographically broad collections throughout the uplands are used to identify centers of local diversity, to relate local diversity to regional diversity, and to suggest use of "hot spots" of biodiversity as a core for conservation of non-game fishes in the state.
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