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Survey data was integrated within a GIS by georeferencing observations to an existing national spatial framework (National Hydrography Dataset), which allows for broader transferability to watersheds shared with neighboring states, creating a seamless layer not limited by state boundaries. Addressing the management and conservation challenges for native fishes will require the ability to “data mine” the extensive existing information on distribution and abundance of species available from aquatic survey programs. Results from such syntheses can be used to assess the current conservation status of native fishes, quantify the extent of species invasions, and establish baseline distributions with which to evaluate...
The trace element selenium is an essential element with a narrow window between concentrations needed to support life and those that cause toxicity to egg laying organisms. Selenium bioaccumulation in aquatic organisms is primarily the result of trophic transfer through food webs and is poorly predicted by dissolved concentrations in freshwater bodies. To better understand the hydrologic and biological dynamics that control selenium accumulation into fishes of the Lower Gunnison River Basin (Colorado), ecosystem scale selenium accumulation models were developed from data collected between June 2015 and October 2016.
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Survey data was integrated within a GIS by georeferencing observations to an existing national spatial framework (National Hydrography Dataset), which allows for broader transferability to watersheds shared with neighboring states, creating a seamless layer not limited by state boundaries. Addressing the management and conservation challenges for native fishes will require the ability to “data mine” the extensive existing information on distribution and abundance of species available from aquatic survey programs. Results from such syntheses can be used to assess the current conservation status of native fishes, quantify the extent of species invasions, and establish baseline distributions with which to evaluate...
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Speckled dace (Rhinichthys osculus) status data created for the Western Division of the American Fisheries Society (WDAFS)


    map background search result map search result map Speckled dace (Rhinichthys osculus) distribution and status by HUC8 Speckled Dace Occurrence in the Little Colorado River Basin Speckled Dace Occurrence in the Verde River Basin Dataset for temporal influences on selenium partitioning, trophic transfer, and exposure in a major U.S. river Speckled Dace Occurrence in the Verde River Basin Speckled Dace Occurrence in the Little Colorado River Basin Dataset for temporal influences on selenium partitioning, trophic transfer, and exposure in a major U.S. river Speckled dace (Rhinichthys osculus) distribution and status by HUC8