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首页> 外文期刊>Marine ecology progress series >Persistent organic pollutants in the green sea turtle Chelonia mydas: nesting population variation, maternal transfer, and effects on development
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Persistent organic pollutants in the green sea turtle Chelonia mydas: nesting population variation, maternal transfer, and effects on development

机译：绿海龟印度Che龟中的持久性有机污染物：巢居种群变化，母体转移及其对发育的影响

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摘要

Persistent organic pollutants (POPs), such as polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs) and polybrominated diphenyl ethers (PBDEs), have a wide range of toxic effects on hμmans and wildlife, and have been reported in a nμmber of endangered sea turtle populations. The present study screened for POPs in a green sea turtle Chelonia mydas population in Peninsular Malaysia and investigated the maternal transfer and effects of POPs on embryonic development. At the Ma'Daerah Turtle Sanctuary, blood, eggs and hatchling blood were collected from 11 nesting female C. mydas. Samples were analysed for 83 PCBs, 23 OCPs and 19 PBDEs using gas chromatography with tandem mass spectrometry. The chemical profiles of eggs from individual turtles were significantly different, indicating variable contaminant uptake during foraging. There was evidence of maternal transfer of POPs to eggs and hatchlings, with significant correlations in sμm of PCBs (SPCB), sμm of PBDEs (XPBDE), γ-hexachlorocyclohexane (γ-HCH), trans-chlordane and mirex concentrations between maternal blood and eggs (p < 0.05, R~2 < 0.71), between eggs and hatchling blood (p < 0.05, R~2 < 0.83), and between maternal and hatchling blood (p < 0.05, R~2 < 0.61). In addition, there was congener-specific transfer of PCBs with less lipophilic congeners (e.g. PCB 99) more readily transferred to hatchlings than the more lipophilic congeners (e.g. PCBs 180 + 193). There was also a significant correlation between increasing egg POP concentration and decreasing hatchling massilength ratio. POPs may therefore have subtle effects on the development of C. mydas eggs, which may compromise offshore dispersal and predator avoidance.
机译：持久性有机污染物（POPs），例如多氯联苯（PCBs），有机氯农药（OCPs）和多溴联苯醚（PBDEs），对人类和野生动植物具有广泛的毒性作用，据报道在数不胜数的濒危海洋中海龟种群。本研究在马来西亚半岛的绿海龟Chelonia mydas种群中筛选了POPs，并调查了POPs的母体转移及其对胚胎发育的影响。在Ma'Daerah龟保护区，从11个嵌套的雌性C. mydas采集了血液，卵子和孵化的血液。使用气相色谱-串联质谱法分析样品中的83种PCB，23种OCP和19种PBDE。来自各个海龟的卵的化学特征显着不同，表明在觅食过程中污染物的摄入量可变。有证据表明孕妇将POPs转移到卵和孵化物中，PCBs的sμm（SPCB），PBDEs的sμm（XPBDE），γ-六氯环己烷（γ-HCH），孕妇血液与母体之间的反式氯丹和灭蚁灵浓度之间存在显着相关性。卵之间（p <0.05，R〜2 <0.71），卵与孵化血之间（p <0.05，R〜2 <0.83），母体与孵化血之间（p <0.05，R〜2 <0.61）。此外，与亲脂性同类物（例如PCBs 180 + 193）相比，亲脂性较低的同类物（例如PCB 99）的PCBs的特定于同类物的转移更容易转移到孵化场。卵中POP浓度增加与孵化质量比降低之间也存在显着相关性。因此，持久性有机污染物可能会对梭菌卵的发育产生微妙影响，这可能会损害离岸扩散和避免捕食者。

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  • 来源
    《Marine ecology progress series》 |2010年第22期|p.269-278|共10页
  • 作者

    Jason P. van de Merwe; Mary Hodge; Joan M. Whittier; Kamarruddin Ibrahim; Shing Y. Lee;

  • 作者单位

    Griffith School of Environment and Australian Rivers Institute, Griffith University Gold Coast campus, Gold Coast, Queensland 4222, Australia Centre for Marine Environmental Research and Innovative Technology, City University of Hong Kong, Kowloon, Hong Kong SAR China;

    rnQueensland Health Scientific Services, Queensland Government, Coopers Plains, Queensland 4108, Australia;

    rnSchool of Biomedical Sciences, University of Queensland, St. Lucia, Queensland 4072, Australia School of Medicine, University of Tasmania, Sandy Bay, Tasmania 7005, Australia;

    rnTurtle and Marine Ecosystems Centre, Department of Fisheries Malaysia, Rantau Abang, Terengganu 23050, Malaysia Marine Park Department of Malaysia, Ministry of Natural Resources and Environment, Federal Government Administration Centre, Putrajaya 62574, Malaysia;

    rnGriffith School of Environment and Australian Rivers Institute, Griffith University Gold Coast campus, Gold Coast, Queensland 4222, Australia;

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  • 正文语种 eng
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  • 关键词

    chelonia mydas; persistent organic pollutants; maternal transfer; contamination profiles;

    机译：chelonia mydas;持久性有机污染物;产妇转移;污染概况;

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