A contaminant evaluation of interior least tern and piping plover eggs and chicks of the Missouri River, South Dakota
U.S. Fish and Wildlife Service, Fish and Wildlife Enhancement, South Dakota State Office, 1991 - Nature - 9 pages
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analyzed for selenium background concentrations believed that selenium Bioaccumulation bioavailability bird eggs bluffs bordering bordering the Missouri cadmium cause of nest chicks collected Choteau Creek collected in 1990 concentrations in eggs concentrations in sediments concentrations of selenium concentrations were elevated dry weight selenium eggs and chicks eggs were analyzed Eisler endangered species Fish and Wildlife fledge ratios foods forage fish collected hazards to fish higher in least interior least tern invertebrates least tern eggs Least terns feed marine shales maximum concentrations Mercury concentrations mg/kg dry weight mg/kg selenium mg/kg wet weight Missouri River nest failure normal selenium concentrations organochlorine PCBs were detected piping plover eggs piping plover nesting Piping plovers feed plover and least plover nesting islands plovers in South probability of embryo ranged between 2.28 River in South samples were collected Selenium concentrations ranged shale samples shiners Notropis slack-water areas synoptic review tern and piping tern and plover Toxaphene U.S. Fish