Sea turtles are exposed to trace elements through water, sediment, and food. Exposure to these elements has been shown to decrease immune function, impair growth, and decrease reproductive output in wildlife. The present study compares trace element concentrations in green turtles in captivity at Sea Life Park Hawaii (n = 6) to wild green turtles in Kapoho Bay, Hawaii, USA (n = 5–7). Blood and scute samples were collected and analyzed for 11 elements via inductively coupled plasma‐mass spectrometry (ICP‐MS). Selenium was significantly greater (p < 0.05) in the blood of captive turtles compared with wild turtles, whereas V, Ni, and Pb were significantly greater in the blood of wild turtles. In scute, V, Cu, Se, and Cr were significantly greater in captive turtles, whereas As was significantly greater in wild turtles. Pelleted food fed to the captive turtles and representative samples of the wild turtle diet were analyzed via ICP‐MS to calculate trophic transfer factors and daily intake values. Wild turtles had greater estimated daily intake than captive turtles for all elements except Cu and Se. Because captive turtles are fed a diet very different from that of their wild counterparts, captive turtles do not represent control or reference samples for chemical exposure studies in wild turtles. No toxic thresholds are known for sea turtles, but rehabilitation and managed care facilities should monitor sea turtle elemental concentrations to ensure the animals' health. Environ Toxicol Chem 2021;40:208–218. © 2020 SETAC. This article has been contributed to by US Government employees and their work is in the public domain in the USA.

中文翻译：

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野生和圈养夏威夷绿海龟 (Chelonia mydas) 血液和鳞片组织中的微量元素浓度

海龟通过水、沉积物和食物接触微量元素。暴露于这些元素已被证明会降低野生动物的免疫功能、损害生长和减少生殖产量。本研究比较了夏威夷海洋生物公园圈养的绿海龟（ n  = 6）与美国夏威夷卡波霍湾的野生绿海龟（n  = 5-7）的微量元素浓度。通过电感耦合等离子体质谱 (ICP-MS) 收集和分析血液和鳞片样品的 11 种元素。硒显着增加（p < 0.05) 与野生鳖相比，圈养鳖血液中的 V、Ni 和 Pb 显着高于野生鳖。在scute中，V、Cu、Se和Cr在圈养海龟中显着增加，而As在野生海龟中显着增加。通过 ICP-MS 分析喂给圈养海龟的颗粒状食物和野生海龟饮食的代表性样品，以计算营养传递因子和每日摄入量值。对于除铜和硒之外的所有元素，野生海龟的估计每日摄入量均高于圈养海龟。由于圈养海龟的饮食与野生海龟的饮食非常不同，圈​​养海龟不代表野生海龟化学暴露研究的对照或参考样本。海龟没有已知的毒性阈值，环境毒物化学2021；40:208-218。© 2020 SETAC。本文由美国政府雇员贡献，他们的工作在美国属于公共领域。