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Winter and spring diet of the orangebelly darter, Etheostoma radiosum, among tributaries of the Lower Mountain Fork River

May 22, 2019

Little is known about prey use by the orangebelly darter, Etheostoma radiosum, and what is known has been described from relatively large river systems. We examined prey use by orangebelly darters from first- and second-order tributaries in the Lower Mountain Fork River of southeastern Oklahoma. Adult darters (n = 141) were captured from five tributaries in 2015, and stomach contents were examined to determine prey use. Aquatic isopods were the most frequently consumed organism. This differs notably from previous reports that insects, primarily dipterans, were the predominant prey for the species.

Publication Year 2019
Title Winter and spring diet of the orangebelly darter, Etheostoma radiosum, among tributaries of the Lower Mountain Fork River
DOI 10.1894/0038-4909-63-2-146
Authors M. L. Reed, W. W. Hoback, James M. Long
Publication Type Article
Publication Subtype Journal Article
Series Title Southwestern Naturalist
Index ID 70215494
Record Source USGS Publications Warehouse
USGS Organization Coop Res Unit Atlanta