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  • Persistent organic pollutants in the green sea turtle Chelonia mydas: nesting population variation, maternal transfer, and effects on development

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    Author(s)
    van de Merwe, Jason P
    Hodge, Mary
    Whittier, Joan M
    Ibrahim, Kamarruddin
    Lee, Shing Y
    Griffith University Author(s)
    van de Merwe, Jason P.
    Lee, Joe Y.
    Year published
    2010
    Metadata
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    Abstract
    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 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, ...
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    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 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 (SPCB), sum of PBDEs (SPBDE), ?-hexachlorocyclohexane (?-HCH), trans-chlordane and mirex concentrations between maternal blood and eggs (p < 0.05, R2 < 0.71), between eggs and hatchling blood (p < 0.05, R2 < 0.83), and between maternal and hatchling blood (p < 0.05, R2 < 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.
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    Journal Title
    Marine Ecology Progress Series
    Volume
    403
    DOI
    https://doi.org/10.3354/meps08462
    Copyright Statement
    © 2010 Inter Research. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
    Subject
    Oceanography
    Wildlife and habitat management
    Ecology
    Zoology
    Publication URI
    http://hdl.handle.net/10072/33176
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    • Journal articles

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