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Abstract

The Strav/berry River has been designated an Extraordinary Resource Water, an Ecologically Sensitive Water Body, and a Natural and Scenic Waterway. As such, it is particularly important that the biodiversity of this river system be documented thoroughly. The purpose of this research was to develop a comprehensive list of the aquatic macroinvertebrates of the Strawberry River and its major tributaries. The information was developed from a thorough literature review and by examining specimens housed in various collections of the Arkansas State University Museum of Zoology and collections of the authors. The latter included 9 collections at 4 sites along the mainstream and 17 collections from 8 tributaries. To date, 313 species of aquatic macroinvertebrates are known to occur in the Strawberry River system. Among the freshwater mussels, 1is listed and 7 are ranked: Leptodea leptodon (Federal list-endangered, SI), Cyprogenia aberti, Lasmigona costata, and Quadrula cylindrica (S2), Cyclonaias tuberculata, Strophitus undulatus, and Villosa lienosa (S3). Of25 stonefly species known to be endemic to the Interior Highlands, 7 occur in this system.

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