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Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts Collin Eagles-Smith Metadata Coordinator Forest and Rangeland Ecosystem Science Center Ecosystems U.S. Geological Survey Categories Data (1) Tag Types Place (1) Harvest Set (1) Theme (1) Tag Schemes Geographic Names Information System (1) USGS Thesaurus (1) View Results as: JSON ATOM CSV

Total Mercury Concentrations in Fish Muscle from the Colorado River and Bright Angel Creek, AZ, USA (2015) Mercury is a globally distributed pollutant that threatens human and ecosystem health. Even protected areas, such as national parks, are subjected to mercury contamination because it is delivered via atmospheric deposition, often after long-range transport. In aquatic ecosystems, certain environmental conditions can promote microbial processes that convert inorganic mercury to an organic form (methylmercury). Methylmercury biomagnifies through food webs and is a potent neurotoxicant and endocrine disruptor. This dataset contains data on the length, mass, and muscle total mercury concentration of Brown Trout (Salmo trutta) and Rainbow Trout (Oncorhynchus mykiss) collected from the Colorado River in Glen Canyon National... Categories: Data; Types: Citation; Tags: Arizona, Bright Angel Creek, Colorado River, Glen Canyon National Recreation Area, Grand Canyon National Park, All tags... USGS Science Data Catalog (SDC), mercury contamination, Fewer tags