Toxicology and Risk Assessment Research Group, IMIB-Arrixaca, Faculty of Veterinary, University of Murcia, Campus de Espinardo, 30100, Murcia, Spain.
Bull Environ Contam Toxicol. 2020 May;104(5):559-567. doi: 10.1007/s00128-020-02822-z. Epub 2020 Mar 17.
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: ∑Dichlorodiphenyltrichloroethanes (∑DDT), ∑Hexachlorocyclohexane (∑HCH), ∑Heptachlor, ∑Drins and ∑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.
本研究使用了 19 只在西南地中海海岸线（安达卢西亚）搁浅的红海龟（Caretta caretta）。共分析了 68 个脂肪（n=18）、肝脏（n=15）、肾脏（n=13）、胸肌（n=19）和大脑（n=3）样本，以测定总汞（Hg）和有机氯农药[OC：∑二氯二苯基三氯乙烷（∑DDT）、∑六氯环己烷（∑HCH）、∑七氯、∑Drins 和∑硫丹]的含量。这些红海龟的组织汞和 OC 浓度与其他研究报告的相似或更低。在与直线甲壳长度相关的 Hg 或 OC 水平方面，几乎没有发现与生长相关的变化，这可能是因为标本主要是幼龟。这项研究将有助于填补时空暴露数据的空白，并确定红海龟污染水平的真实全球情况。
