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- 2 Stream ecology--Ohio River
- 2 Unionidae
- 2 Unionidae--Effect of sediments on
- 2 Unionidae--Mississippi--Big Sunfl...
- 2 Unionidae--Ohio River
- 1 Bivalvia--Effect of habitat modif...
- 1 Black Warrior River (Ala.)
- 1 Dredging--Environmental aspects
- 1 Endangered species--Alabama
- 1 Environmental aspects
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