Antarctic octopod beaks as proxy for mercury concentrations in soft tissues

MARINE POLLUTION BULLETIN

卷:158

Article

Matias, Ricardo S.¹  Seco, Jose^2,3,4  Gregory, Susan^5,6  Belchier, Mark⁵  Pereira, Maria E.^2,3  Bustamante, Paco^7,8  Xavier, Jose C.^1,5 

[1] Univ Coimbra, Marine & Environm Sci Ctr MARE, Dept Life Sci, Fac Sci & Technol, P-3000456 Coimbra, Portugal

[2] Univ Aveiro, Dept Chem, Campus Univ Santiago, P-3810193 Aveiro, Portugal

[3] Univ Aveiro, CESAM REQUIMTE, Campus Univ Santiago, P-3810193 Aveiro, Portugal

[4] Univ St Andrews, Sch Biol, St Andrews KY16 9ST, Fife, Scotland

[5] British Antarctic Survey, Nat Environm Res Council, Madingley Rd, Cambridge CB3 0ET, England

[6] Govt South Georgia & South Sandwich Isl, Stanley, Falkland Island

[7] La Rochelle Univ, Littoral Environm & Soc LIENSs, UMR 7266 CNRS, 2 Rue Olympe de Gouges, F-17000 La Rochelle, France

[8] Inst Univ France IUF, 1 Rue Descartes, F-75005 Paris, France

关键词: Total mercury;    South Georgia;    Cephalopoda;    Toxicology;   

DOI  :  10.1016/j.marpolbul.2020.111447

来源: Elsevier

【 摘 要 】

As the role of mercury is poorly known in Southern Ocean biota, the total mercury (T-Hg) concentrations were evaluated in upper/lower beaks, digestive gland, gills and mantle muscle of Adelieledone polymorpha and Pareledone turqueti, two of the most abundant octopod species around South Georgia. Beaks had the lowest T-Hg concentrations (A. polymorpha: [T-H](Upper) = 27.2 +/- 12.9 ng.g(-1) and [T-Hg](Lower) = 27.5 +/- 20.0 ng.g(-1); P. turqueti: [T-Hg](Upper) = 34.6 +/- 13.9 ng.g(-1) and [T-Hg](Lower) = 56.8 +/- 42.0 ng.g(-1)), followed by gills and muscle. The highest values were recorded in the digestive gland (A. polymorpha: 251.6 +/- 69.7 ng.g(-1) ; P. turqueti: 347.0 +/- 177.0 ng.g(-1)). Significant relationships were found between the concentrations of T-Hg in the beaks and muscle of A. polymorpha (T-Hg in muscle is 10 times higher than in beaks). This study shows that beaks can be used as proxy for T-Hg in muscle for some octopod species, and a helpful tool for estimating total Hg body burden from beaks.

【 授权许可】

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