Effects of Habitat Degradation on Biological Endpoints in the South Fork Broad River Basin, Georgia
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The effects of habitat degradation on biological endpoints were studied at 13 sites in and adjacent to the South Fork Broad river basin. Constrained ordination was used to relate benthic macroinvertebrate and fish data to habitat and environmental data. Benthic macroinvertebrates were primarily influenced by habitat, while fish were affected by stream order and secondarily by habitat. Habitat degradation was related to: a decrease in stoneflies, caddisflies, and the Clingers/Burrowers ratio; a decline in the abundance of darters and suckers; and an increase in the number of sunfish species.