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

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

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 analyz...

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Veröffentlicht in:Marine pollution bulletin 2019-12, Vol.149, p.110593, Article 110593
Hauptverfasser: Atkinson, Shannon, Branson, Maile, Burdin, Alexander, Boyd, Daryle, Ylitalo, Gina M.
Format: Artikel
Sprache:eng
Schlagworte:
Adipose Tissue - chemistry
Animals
Aquatic mammals
Bioaccumulation
Biopsy
Blubber
Collapse
Contaminants
Delphinidae
Dichlorodiphenyl Dichloroethylene - analysis
Dieldrin
Diet
Dolphins
Eating
Ecotypes
Environmental Exposure
Environmental Monitoring
Female
Females
Fish
Halogenated Diphenyl Ethers - analysis
Hydrocarbons, Chlorinated - analysis
Killer whales
Male
Males
Marine mammals
Mirex
Orcinus orca
PCB
Persistent organic pollutants
Pesticides - analysis
Pollutants
Pollution load
Polychlorinated biphenyls
Polychlorinated Biphenyls - analysis
Russia
Russian Far East
Water Pollutants, Chemical - analysis
Whale, Killer
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Zusammenfassung: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 ΣDDT, ΣPCB, and HCB concentrations. A subset of biopsies was further examined for additional contaminants, ΣPBDE, ΣHCH, ΣCHLD, mirex, and dieldrin. Mean concentrations were compared across resident (fish-eating) and transient (mammal-eating) ecotypes and between sexes. ΣPCB 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 
ISSN:0025-326X
1879-3363
DOI:10.1016/j.marpolbul.2019.110593