Maternal transfer of organohalogenated compounds in sharks and stingrays

Weijs, Liesbeth, Briels, Nathalie, Adams, Douglas H., Lepoint, Gilles, Das, Krishna, Blust, Ronny and Covaci, Adrian (2015) Maternal transfer of organohalogenated compounds in sharks and stingrays. Marine Pollution Bulletin, 92 1-2: 59-68. doi:10.1016/j.marpolbul.2014.12.056

Author Weijs, Liesbeth
Briels, Nathalie
Adams, Douglas H.
Lepoint, Gilles
Das, Krishna
Blust, Ronny
Covaci, Adrian
Title Maternal transfer of organohalogenated compounds in sharks and stingrays
Journal name Marine Pollution Bulletin   Check publisher's open access policy
ISSN 1879-3363
Publication date 2015
Sub-type Article (original research)
DOI 10.1016/j.marpolbul.2014.12.056
Open Access Status
Volume 92
Issue 1-2
Start page 59
End page 68
Total pages 10
Place of publication London, United Kingdom
Publisher Elsevier
Collection year 2016
Language eng
Abstract Elasmobranchs can bioaccumulate considerable amounts of persistent organic pollutants (POPs) and utilize several reproductive strategies thereby influencing maternal transfer of contaminants. This study provides preliminary data on the POP transfer from pregnant females to offspring of three species (Atlantic stingrays, bonnethead, blacktip sharks) with different reproduction modes (aplacental, placental viviparity). Polychlorinated biphenyl (PCB) levels were generally higher than any other POPs. Stingrays and blacktip shark embryos contained the lowest POP concentrations while bonnetheads and the blacktip adult female had the highest concentrations. Results suggest that POPs are more readily transferred from the mother to the embryo compared to what is transferred to ova in stingrays. Statistically significant differences in levels of selected POPs were found between embryos from the left and right uterus within the same litter as well as between female and male embryos within the same litter for bonnetheads, but not for the blacktip sharks.
Keyword Atlantic stingrays
Blacktip sharks
Maternal transfer
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2016 Collection
National Research Centre for Environmental Toxicology Publications
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Created: Tue, 03 Feb 2015, 00:37:15 EST by System User on behalf of National Res Centre For Environmental Toxicology