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Early Life-history and Conservation Status of Venustaconcha Ellipsiformis (Bivalvia, Unionidae) in Minnesota
ABSTRACT The ellipse, Venustaconcha ellipsiformis (Bivalvia: Unionidae), was first recorded in Minnesota from the Straight River in 1987, but we knew little of its distribution in the state, broodingExpand
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Improving fish passage through navigation dams on the Upper Mississippi River System
Improving fish passage through dams is recognized as an important way to restore river ecosystems. The Upper Mississippi River System (UMRS) has a series of29 navigation dams on the Mississippi RiverExpand
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Post-Extirpation Recovery of the Freshwater Mussel (Bivalvia: Unionidae) Fauna in the Upper Illinois River
ABSTRACT Freshwater mussels are recolonizing the upper Illinois River following their extirpation by pollution in the early part the 20th century. From 1990 to 1999, we collected 332 individuals ofExpand
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Relic Populations of the Ebony Shell, Fusconaia ebena (Bivalvia: Unionidae), in the Upper Mississippi River Drainage
ABSTRACT The ebony shell (Fusconaia ebena) is extirpated from much of the upper Mississippi River drainage. Nonetheless, in the past 25 years 94 live individuals were collected at 23 sites in theExpand
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Muskrat (Ondatra zibethicus) Predation on Zebra Mussels (Dreissena polymorpha) Attached to Unionid Bivalves
ABSTRACT Muskrats (Ondatra zibethicus) commonly prey upon unionid bivalves, discarding the empty shells in discrete piles or middens. We found large numbers of live unionids and the shell remains ofExpand
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The Freshwater Mussel Fauna (Bivalvia: Unionidae) of the Knife River, Minnesota, Following a Rotenone Treatment
ABSTRACT Our objective was to determine if salmonid biomass across a large watershed in the Bighorn Mountains of Wyoming was influenced by stream size, channel slope, or abundance of pool habitat. NoExpand