期刊
TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY
卷 145, 期 3, 页码 450-461出版社
WILEY
DOI: 10.1080/00028487.2016.1143395
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类别
资金
- Oklahoma Department of Wildlife Conservation through Sport Fish Restoration Program [F-81-R]
- Sitlington Enriched Graduate Fellowship from Oklahoma State University
- U.S. Geological Survey, Oklahoma State University
- Oklahoma Department of Wildlife Conservation
- Wildlife Management Institute
- U.S. Fish and Wildlife Service
- Institutional Animal Care and Use Committee at Oklahoma State University
Species distribution models are useful tools to evaluate habitat relationships of fishes. We used hierarchical Bayesian multispecies mixture models to evaluate the relationships of both detection and abundance with habitat of reservoir fishes caught using tandem hoop nets. A total of 7,212 fish from 12 species were captured, and the majority of the catch was composed of Channel Catfish Ictalurus punctatus ( 46%), Bluegill Lepomis macrochirus ( 25%), and White Crappie Pomoxis annularis ( 14%). Detection estimates ranged from 8% to 69%, and modeling results suggested that fishes were primarily influenced by reservoir size and context, water clarity and temperature, and land-use types. Species were differentially abundant within and among habitat types, and some fishes were found to be more abundant in turbid, less impacted ( e.g., by urbanization and agriculture) reservoirs with longer shoreline lengths; whereas, other species were found more often in clear, nutrient-rich impoundments that had generally shorter shoreline length and were surrounded by a higher percentage of agricultural land. Our results demonstrated that habitat and reservoir characteristics may differentially benefit species and assemblage structure. This study provides a useful framework for evaluating capture efficiency for not only hoop nets but other gear types used to sample fishes in reservoirs.
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