Geographic differences in organic contaminants and stable isotopes (δ13C, δ15N) in thick-billed murre (Uria lomvia) eggs from Alaska
作者： Stacy S. Vander Pol , Keith A. Hobson , Paul R. Becker , Rusty D. Day , Michael B. Ellisor
DOI: 10.1039/C0EM00347F
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摘要: The contents from thick-billed murre (Uria lomvia) eggs collected at four Alaskan colonies in 2002 were analyzed for organic contaminants and carbon (δ13C) nitrogen (δ15N) stable isotopes. Contaminant concentrations the varied below detection limits to 230 ng g−1 wet mass 4,4′-DDE one egg St Lazaria Island Gulf of Alaska. Eggs this colony generally contained higher levels exhibited significantly different patterns compared Bering Chukchi seas. Stable isotope values also geographically; however, these differences appeared be related C N baselines food webs instead prey. correlations inconclusive, suggesting that better information on regional web differential offloading isotopes must obtained before kinds data can fully incorporated into seabird contaminant monitoring programs.
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