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Seasonal influences on food availability and diet of coastal cutthroat trout in relation to riparian vegetation - field data


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This data set includes spreadsheets containing aquatic and terrestrial invertebrate surveys, fish diet analysis, riparian vegetation surveys, water chemistry analysis, substrate surveys, and air and water temperature data. Data were collected during 2001 and 2002 on streams in the Oregon Coast Range - NF Ecola Creek, Camp Creek, and Tucca Creek.


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The goal of this study was to examine seasonal influences of riparian vegetation on aquatic food webs in headwater streams of forested areas of the Oregon Coast Range. Specifically, we (1) compared invertebrate biomass and species composition from benthic, drift, and allochthonous sources among stream sections with deciduous-dominated, conifer-dominated, and mixed (deciduous-conifer) vegetation, (2) determined seasonal variation in prey availability and diet of coastal cutthroat trout (Oncorhynchus clarki clarki) in these riparian communities, and (3) examined fish condition in relation to prey consumption.

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