title: Aquatic ecology: delivery of pollutants by spawning salmon.
mesh_terms: D025041:Animal Migration; D000818:Animals; D018533:Biomass; D020387:Food Chain; D005618:Fresh Water / Q000737:chemistry; D019015:Geologic Sediments / Q000737:chemistry*; D017683:Oncorhynchus / Q000378:metabolism*; D010140:Pacific Ocean; D011078:Polychlorinated Biphenyls / Q000378:metabolism*; D014873:Water Pollutants / Q000378:metabolism*
chemical_list: D014873:Water Pollutants; D011078:Polychlorinated Biphenyls