Multi-year assessment (2006-2015) of persistent organic pollutant concentrations in blubber and muscle from Western Arctic bowhead whales (Balaena mysticetus), North Slope, Alaska

被引:8
|
作者
Bolton, Jennie L. [1 ]
Ylitalo, Gina M. [1 ]
Chittaro, Paul [1 ]
George, J. Craig [2 ]
Suydam, Robert [2 ]
Person, Brian T. [2 ]
Gates, Jonelle B. [1 ]
Baugh, Keri A. [1 ]
Sformo, Todd [2 ,3 ]
Stimmelmayr, Raphaela [2 ,3 ]
机构
[1] NOAA, Environm & Fisheries Sci Div, Northwest Fisheries Sci Ctr, Natl Marine Fisheries Serv, 2725 Montlake Blvd East, Seattle, WA 98112 USA
[2] North Slope Borough, Dept Wildlife Management, Box 69, Utqiagvik Barrow, AK 99723 USA
[3] Univ Alaska, Inst Arctic Biol, Fairbanks, AK 99775 USA
基金
美国海洋和大气管理局;
关键词
Bowhead whale; Alaska; Persistent organic pollutants; Temporal trends; POLYBROMINATED DIPHENYL ETHERS; BROMINATED FLAME RETARDANTS; GLOBAL CLIMATE-CHANGE; SEALS PHOCA-HISPIDA; ST-LAWRENCE ISLAND; TEMPORAL TRENDS; ORGANOCHLORINE CONTAMINANTS; POLYCHLORINATED-BIPHENYLS; MARINE ZOOPLANKTON; METAL CONTAMINANTS;
D O I
10.1016/j.marpolbul.2019.110857
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Blubber and muscle were collected from male bowhead whales (n = 71) landed near Utqiagvik (Barrow), Alaska, between 2006 and 2015 and analyzed for lipid content and concentrations of persistent organic pollutants (POPs) in order to determine levels and trends over the collection period. Collection year was a significant predictor of blubber concentrations for most classes of POPs, while for a few classes, animal length (proxy for age) was also a significant predictor. This is the first report on levels of PBDEs in bowhead whales; concentrations of these compounds are low (<= 55 ng/g wet weight). Blubber concentrations were lower than those reported in samples collected between 1992 and 2000, and many POP classes in blubber declined significantly between 2006 and 2015. Concentrations of POPs in bowhead whale tissues, which are subsistence foods for Native Alaskan communities, appear to be declining at rates comparable with previously reported temporal trends in Arctic biota.
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页数:10
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