Trace metals have been found in sea turtle blood and tissues and may represent a threat to these endangered species. Essential trace metal (Cu, Zn Cd, Pb, As, and Hg) concentrations were determined in blood of adult female, post-nesting olive ridley turtles Lepidochelys olivacea (n = 35) on Ceuta beach, Sinaloa, Mexico. Essential metals (Zn and Cu) analyzed were found in higher concentrations than toxic metals (Cd and Pb), while As and Hg concentrations were below the limits of detection (0.01 μg g^-1). Low Pb concentrations (0.09 μg g^-1) were previously observed in sea turtles in the Gulf of California. There were no significant correlations found between curved carapace length (61.00–71.00 ± 2.29) vs metal concentrations (p > 0.05). Cd levels were relatively high when compared to other species and populations of sea turtles worldwide and Cd may represent the greatest risk for sea turtles in the Mexican Pacific. Such concentrations of Cd may pose a further risk to sea turtles through bioaccumulation from the nesting female to offspring which may affect embryo development.

在海龟的血液和组织中发现了痕量金属，可能对这些濒危物种构成威胁。在墨西哥锡那罗亚州休达海滩上，成年雌性巢后橄榄色ridrid龟Lepidochelys olivacea（n = 35）的成年雌性血液中测定了必需痕量金属（Cu，Zn Cd，Pb，As和Hg）的浓度。发现所分析的必需金属（锌和铜）的浓度高于有毒金属（镉和铅），而砷和汞的浓度低于检测极限（0.01μgg ^-1）。先前在加利福尼亚湾的海龟中发现低Pb浓度（0.09μgg ^-1）。在弯曲的甲壳长度（61.00–71.00±2.29）与金属浓度之间没有显着相关性（p> 0.05）。与全世界其他种类和种群的海龟相比，Cd含量相对较高，Cd可能是墨西哥太平洋海龟的最大患病风险。此类Cd的浓度可能会通过从雌性筑巢到后代的生物积累而对海龟构成进一步的风险，这可能会影响胚胎的发育。