期刊
MARINE ECOLOGY PROGRESS SERIES
卷 403, 期 -, 页码 269-278出版社
INTER-RESEARCH
DOI: 10.3354/meps08462
关键词
Chelonia mydas; Persistent organic pollutants; Maternal transfer; Contamination profiles
资金
- Australian Research Council [LP0455513]
- Griffith University [EAS/04/04aec]
Persistent organic pollutants (POPs), such as polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs) and polybrominatecl diphenyl ethers (PBDEs), have a wide range of toxic effects on humans and wildlife, and have been reported in a number 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 sum of PCBs (Sigma PCB), sum of PBDEs (Sigma PBDE), gamma-hexachlorocyclohexane (gamma-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 mass:length ratio. POPs may therefore have subtle effects on the development of C. mydas eggs, which may compromise offshore dispersal and predator avoidance.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据