Persistent organic pollutants in killer whales (Orcinus orca) of the Russian Far East

被引：4
|
作者：
Atkinson, Shannon [1 ]
Branson, Maile [2 ]
Burdin, Alexander [3 ]
Boyd, Daryle [4 ]
Ylitalo, Gina M. [4 ]
机构：
[1] Univ Alaska Fairbanks, Coll Fisheries & Ocean Sci, 17101 Point Lena Loop Rd, Juneau, AK 99801 USA
[2] Univ Alaska Fairbanks, Dept Biol Sci, Anchorage, AK USA
[3] FEB RAS, Kamchatka Branch, Pacific Inst Geog, Petropavlovsk Kamchatski, Russia
[4] NOAA, Environm & Fisheries Sci Div, Northwest Fisheries Sci Ctr, Natl Marine Fisheries Serv, 2725 Montlake Blvd East, Seattle, WA 98112 USA
来源：
MARINE POLLUTION BULLETIN | 2019年 / 149卷
关键词：
Killer whales; Orcinus orca; Persistent organic pollutants; Contaminants; Russian Far East; POLYCHLORINATED BIPHENYL CONGENERS; PRINCE-WILLIAM-SOUND; SEALS PHOCA-VITULINA; LIFE-HISTORY PARAMETERS; NORTH PACIFIC; ORGANOCHLORINE PESTICIDES; GENETIC DIFFERENTIATION; POTENTIAL TOXICITY; EUMETOPIAS-JUBATUS; GLOBAL TRANSPORT;
D O I：
10.1016/j.marpolbul.2019.110593
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Exposure to persistent organic pollutants (POPs) is a key factor in predicting the collapse of global killer whale (Orcinus orca) populations due to reproductive and immune impacts. Blubber biopsies from killer whales (n = 25) were collected in the Russian Far East in 2002-2004. Biopsies were analyzed for Sigma DDT, Sigma PCB, and HCB concentrations. A subset of biopsies was further examined for additional contaminants, Sigma PBDE, Sigma HCH, Sigma CHLD, mirex, and dieldrin. Mean concentrations were compared across resident (fish-eating) and transient (mammaleating) ecotypes and between sexes. Sigma PCB analytes (resident males 18,000, resident females 1200, and transient males 420,000 ng g(-1) lw) and HCB (resident males 750, resident females 81, and transient males 6200 ng g(-1) lw) differed significantly (p < 0.001). No significant difference was observed between sexes. Notable disparities in contaminant levels between ecotypes support the major toxicological theories of contaminant bioaccumulation and dietary impacts on individual contaminant load.
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页数：8
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