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Duncan, R. E. and P. A. Thiel (1983). A survey of the mussel densities in Pool 10 of the Upper Mississippi River. U.S. Fish and Wildlife Service, Fisheries Resource Office, Technical Bulletin 139.

Impoundment, water quality, and other factors have had an impact on the mussel fauna of the Upper Mississippi River. The primary objective of this survey was to quantitatively define the diversity and relative density of the mussel community in Pool 10 of the river. Pool 10 extends from Lock and Dam No. 9 near Lynxville, Wisconsin, to Lock and Dam No. 10 at Guttenberg, Iowa , a total of 32.8 river miles. Of the 309 sites sampled, mussels were found at 224 sites, or 72%. The East Channel near Prairie du Chien, Wisconsin had the richest mussel fauna with an average density of 2.964 mussels per square foot; and only 6% of the sites were nonproductive. The lower end of Pool 10 had the lowest mussel density at 0.655 per square foot and the highest percentage of nonproductive sites, 38%. The mussel density in the main channel border was two times greater than in the main channel and backwater. A total of 12,150 live specimens representing 31 species of freshwater mussels were collected from Pool 10; an additional 7 species were represented only by dead specimens. Threeridge, Amblema plicata, was by far the most abundant mussel species, comprising 52.9% of the catch and having an average density of 0.832 per square foot.