Comparison of persistent organic pollutants (POPs) between small cetaceans in coastal and estuarine waters of the northern Gulf of Mexico

MARINE POLLUTION BULLETIN

卷:145

Article

Balmer, Brian¹  Ylitalo, Gina²  Watwood, Stephanie³  Quigley, Brian¹  Bolton, Jennie²  Mullin, Keith⁴  Rosel, Patricia⁵  Rowles, Teri⁶  Speakman, Todd¹  Wilcox, Lynsey⁵  Zolman, Eric¹  Schwacke, Lori¹ 

[1] Natl Marine Mammal Fdn, 3419 Maybank Highway Suite B, Johns Isl, SC 29455 USA

[2] NOAA, Environm & Fisheries Sci Div, Northwest Fisheries Sci Ctr, Natl Marine Fisheries Serv, 2725 Mondake Blvd East, Seattle, WA 98112 USA

[3] Naval Undersea Warfare Ctr Div, Environm Branch, 1176 Howell St, Newport, RI 02841 USA

[4] NOAA, Natl Marine Fisheries Serv, Southeast Fisheries Sci Ctr, 3209 Freder St, Pascagoula, MS 39567 USA

[5] NOAA, Natl Marine Fisheries Serv, Southeast Fisheries Sci Ctr, 646 Cajundome Blvd, Lafayette, LA 70506 USA

[6] NOAA, Natl Marine Fisheries Serv, Off Protected Resources, 1315 East West Highway, Silver Spring, MD 20910 USA

关键词: Small cetaceans;    Pollutants;    Photographic-identification;    Remote biopsy;   

DOI  :  10.1016/j.marpolbul.2019.05.017

来源: Elsevier

【 摘 要 】

Small cetaceans continue to be exposed to elevated levels of persistent organic pollutants (POPs). The goals of this study were to use data from remote biopsy sampling and photographic-identification to compare POP concentrations between small cetacean stocks in the northern Gulf of Mexico. During 2015-2017, 74 remote biopsies were collected in St. Andrew Bay and adjacent coastal waters from two species: common bottlenose dolphin (Tursiops truncates) (N = 28, female; N = 42, male) and Atlantic spotted dolphin (Stenella frontalis) (N = 2, female; N = 2, male). Common bottlenose dolphin POP concentrations were significantly higher in St. Andrew Bay than coastal waters. Male St. Andrew Bay dolphins had the highest Sigma DDT (dichlorodiphenyl-dichloroethane) levels measured in the southeastern U.S. (67 mu g/g, 50-89 mu g/g; geometric mean and 95% CI) and showed a significant negative relationship between Sigma DDT and sighting distance from a St. Andrew Bay point source.

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