4.4 Article

Mercury and Organochlorine Pesticides in Tissues of Loggerhead Sea Turtles (Caretta caretta) Stranded Along the Southwestern Mediterranean Coastline (Andalusia, Spain)

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DOI: 10.1007/s00128-020-02822-z

关键词

Mercury; Organochlorine pesticides; Caretta caretta; Loggerhead sea turtle; Marine pollution

资金

  1. Aula del Mar (Malaga)
  2. Spanish Government [MASCA'2008 CGL-2008-4318/BOS, NOVEDAR-CONSOLIDER CSD00C-07-22204]
  3. Ministerio de Ciencia, Innovacion y Universidades (Juan de la Cierva-Incorporacion) [IJCI-2017-34653]

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Nineteen loggerhead sea turtles (Caretta caretta) stranded along the southwestern Mediterranean coastline (Andalusia) were used in this study. A total of 68 samples of fat (n = 18), liver (n = 15), kidney (n = 13), pectoral muscle (n = 19), and brain (n = 3) were analysed for total mercury (Hg) and organochlorine pesticides [OC: n-ary sumation Dichlorodiphenyltrichloroethanes ( n-ary sumation DDT), n-ary sumation Hexachlorocyclohexane ( n-ary sumation HCH), n-ary sumation Heptachlor, n-ary sumation Drins and n-ary sumation Endosulfan]. These loggerhead sea turtles showed tissue Hg and OC concentrations similar to or lower than those reported in other studies. Few growth-related variations in Hg or OC levels in relation to straight carapace length were found, probably because the specimens were mostly juveniles. This study will help to fill the gap on spatio-temporal exposure data and ascertain the real world-wide picture of the contamination levels in loggerhead sea turtles.

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