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Assemblage patterns of fish functional groups relative to habitat connectivity and conditions in floodplain lakes

January 1, 2010

We evaluated the influences of habitat connectivity and local environmental factors on the distribution and abundance patterns of fish functional groups in 17 floodplain lakes in the Yazoo River Basin, USA. The results of univariate and multivariate analyses showed that species-environmental relationships varied with the functional groups. Species richness and assemblage structure of periodic strategists showed strong and positive correlations with habitat connectivity. Densities of most equilibrium and opportunistic strategists decreased with habitat connectivity. Densities of certain equilibrium and opportunistic strategists increased with turbidity. Forested wetlands around the lakes were positively related to the densities of periodic and equilibrium strategists. These results suggest that decreases in habitat connectivity, forested wetland buffers and water quality resulting from environmental manipulations may cause local extinction of certain fish taxa and accelerate the dominance of tolerant fishes in floodplain lakes. ?? 2010 John Wiley & Sons A/S.

Citation Information

Publication Year 2010
Title Assemblage patterns of fish functional groups relative to habitat connectivity and conditions in floodplain lakes
DOI 10.1111/j.1600-0633.2010.00438.x
Authors S. Miyazono, J.N. Aycock, L.E. Miranda, T.E. Tietjen
Publication Type Article
Publication Subtype Journal Article
Series Title Ecology of Freshwater Fish
Series Number
Index ID 70036479
Record Source USGS Publications Warehouse
USGS Organization