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Title
  • en Contamination status and accumulation characteristics of heavy metals and arsenic in five seabird species from the central Bering Sea
Creator
Accessrights open access
Rights
Subject
  • Other en Bering Sea
  • Other en cadmium
  • Other en mercury
  • Other en seabird
  • NDC 649
Description
  • Abstract en Seabirds are marine top predators and accumulate high levels of metals and metalloids in their tissues. Contamination by metals in the highly productive offshore region has become a matter of public concern. It is home to 80% of the seabird population in the U.S.A., 95% of northern fur seals (Callorhinus ursinus), and major populations of Steller sea lions (Eumetopias jubatus), walruses (Odobenus rosmarus) and whales. Here, the concentrations of eight heavy metals (Hg, Cd, Cr, Co, Ni, Cu, Zn and Pb) and a metalloid (As) in the liver and kidneys of the northern fulmar (Fulmarus glacialis), thick-billed murre (Uria lomvia), short-tailed shearwater (Puffinus tenuirostris), tufted puffin (Fratercula cirrhata) and horned puffin (Fratercula corniculata) collected in the Bering Sea were measured. As proxies of trophic level and habitat, nitrogen (delta N-15) and carbon (delta C-13) stable isotope ratios of breast muscles were also measured. Hepatic Hg concentration was high in northern fulmar, whereas Cd level was high in tufted puffin and northern fulmar. The Hg concentration and d15N value were positively correlated across individual birds, suggesting that Hg uptake was linked to the trophic status of consumed prey. Furthermore, Hg concentration in our study was higher than those of the same species of seabirds collected in 1990.
Publisher ja 公益社団法人 日本獣医学会 en The Japanese Society of Veterinary Science
Date
    Issued2017-04
Language
  • eng
Resource Type journal article
Version Type VoR
Identifier HDL http://hdl.handle.net/2115/70803
Relation
  • isIdenticalTo DOI https://doi.org/10.1292/jvms.16-0441
Journal
    • PISSN 0916-7250
      • en Journal of veterinary medical science
      • Volume Number79 Issue Number4 Page Start807 Page End814
File
Oaidate 2023-07-26