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Contaminants in larval, juvenile, and adult Pacific lamprey (Entosphenus tridentatus), Oregon, 2017-2021 This data release contains analytical results of organohalogenated compounds and mercury in lamprey and sediment that were collected from rivers in Oregon and along the Pacific northwest coast from 2017 to 2021. In 2017, 20 lamprey were collected off the Washington and Oregon coasts by the National Oceanic and Atmospheric Administration. These ocean-caught juvenile lamprey were parasitizing targeted fish and were bycatch. In 2019, larval lamprey were collected by the Confederated Tribes of Warm Springs of Oregon from 8 sites on the Warm Springs Reservation. Larval lamprey were collected by electroshocking depositional sediment areas. Collocated depositional sediment samples also were collected along with the larval... Categories: Data; Tags: Aquatic Biology, Environmental Health, Oregon, USGS Science Data Catalog (SDC), United States, All tags... Warm Springs Indian Reservation, Water Quality, aquatic biology, biota, contamination and pollution, ecotoxicology, inlandWaters, Fewer tags