Persistent organic pollutants in green sea turtles (Chelonia mydas) inhabiting two urbanized Southern California habitats

MARINE POLLUTION BULLETIN

卷:153

Article

Barraza, Arthur D.^1,7  Komoroske, Lisa M.^2,3  Allen, Camryn D.^2,4  Eguchi, Tomoharu²  Gossett, Rich⁵  Holland, Erika¹  Lawson, Daniel D.⁶  LeRoux, Robin A.²  Lorenzi, Varenka⁵  Seminoff, Jeffrey A.²  Lowe, Christopher G.¹ 

[1] Calif State Univ Long Beach, Dept Biol Sci, Long Beach, CA 90840 USA

[2] NOAA, Natl Marine Fisheries Serv, Southwest Fisheries Sci Ctr, La Jolla, CA USA

[3] Univ Massachusetts, Dept Environm Conservat, Amherst, MA 01003 USA

[4] NOAA, Joint Inst Marine & Atmospher Res, Protected Species Div, Pacific Isl Fisheries Sci Ctr,Natl Marine Fisheri, Honolulu, HI USA

[5] Calif State Univ Long Beach, Inst Integrated Res Mat Environm & Soc, Long Beach, CA USA

[6] NOAA, Long Beach Reg Off, Natl Marine Fisheries Serv, Long Beach, CA USA

[7] Griffith Univ, Australian Rivers Inst, Sch Environm & Sci, Gold Coast Campus, Southport, Qld, Australia

关键词: Chelonia mydas;    Persistent organic pollutants;    Polychlorinated biphenyls;    Organochlorinated pesticides;    Urbanized habitats;    Marine turtles;   

DOI  :  10.1016/j.marpolbul.2020.110979

来源: Elsevier

【 摘 要 】

Within Southern California, east Pacific green sea turtles (Chelonia mydas) forage year-round, taking advantage of diverse food resources, including seagrass, marine algae, and invertebrates. Assessing persistent organic pollutants (POP) in green turtle aggregations in the Seal Beach National Wildlife Refuge (SBNWR, n = 17) and San Diego Bay (SDB, n = 25) can help quantify contamination risks for these populations. Blood plasma was analyzed for polychlorinated biphenyls (PCBs), organochlorinated pesticides (OCPs), and polybrominated diphenyl ethers (PBDEs). PCBs and body size explained much of the separation of turtles by foraging aggregation in a principal component analysis. Turtles from SDB had significantly (p < 0.001) higher total PCBs than SBNWR turtles. Most PCBs detected in turtles were non-dioxin-like PCB congeners (153, 138, 99) that are associated with neurotoxicity. Recaptured turtles' POP levels changed significantly over time indicating significant variation in POP levels through time and space, even among adjacent foraging locations.

【 授权许可】

Free