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Mussel Fauna Associated with Wing Dams in Pool 7 of the Mississippi River

1988; Taylor & Francis; Volume: 4; Issue: 3 Linguagem: Inglês

10.1080/02705060.1988.9665179

2156-6941

Andrew C. Miller,

Fish Ecology and Management Studies

ABSTRACT Twenty-three species of freshwater mussels (Mollusca: Unionidae) were collected by divers in May, 1987, at 32 sites on and between wing dams in Pool 7 of the upper Mississippi River. Five species (Amblema plicata, Obliquaria reflexa, Obovaria olivaria, Lampsilis ventricosa and Quadrula pustulosa) comprised 90% of the fauna and were found at 88–100% of the sites. Specimens of Actinonaias ligamentina, Plethobasus cyphyus, and Strophitus undulatus, last reported in 1930, and the endangered Lampsilis higginsi, last reported in 1966, were collected alive.