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We will identify regional and area office partners within Reclamation to use available downscaled climate projections, translate projections into biological forecasts for projected changes to populations and habitat, conduct probabilistic scenario planning, and recommend management actions. The research will also identify strategic basins to work in, find personnel to conduct the work, and locate external funding and in-kind services (e.g., non-governmental organizations, State agencies, and other Federal agencies). We will identify fisheries population and fish physiology effects as well as invasive species effects from climate change in Reclamation-managed systems. We will concentrate on effects on species of...
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Invasion of North American waters by Dreissena polymorpha and D. rostriformis bugensis has resulted in declines in native North American Unionoida mussels. Dreissenid mussels biofoul unionid mussels in large numbers and interfere with unionid movement, acquisition of food and ability to open and close their shells. Initial expectations for the Great Lakes were that unionids would be extirpated where they co-occur with dreissenids, but recently adult and juvenile unionids have been found alive in several apparent refugia. These unionid populations may persist due to reduced dreissenid biofouling in these areas, and/or due to processes that remove biofoulers. For example, locations inaccessible to veligers may reduce...
map background search result map search result map Spatial Variation in Biofouling of a Unionid Mussel (Lampsilis siliquoidea) Across the Western Basin of Lake Erie Data Spatial Variation in Biofouling of a Unionid Mussel (Lampsilis siliquoidea) Across the Western Basin of Lake Erie Data