期刊
MARINE POLLUTION BULLETIN
卷 103, 期 1-2, 页码 220-226出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2015.12.016
关键词
Squid beaks; Toxicology; DNA; Mercury levels
资金
- Portuguese Foundation for the Science and Technology (FCT) [IF/00616/2013, IF/01410/2012, SFRH/BPD/81509/2011, SFRH/BPD/79445/2011, SFRH/BD/48908/2008]
- government of Canada through Genome Canada
- Ontario Genomics Institute
- NERC [bas0100035] Funding Source: UKRI
- Natural Environment Research Council [bas0100035] Funding Source: researchfish
- Fundação para a Ciência e a Tecnologia [SFRH/BPD/81509/2011, SFRH/BD/48908/2008, SFRH/BPD/79445/2011] Funding Source: FCT
Cephalopod beaks found in the diet of predators have been major source of scientific information. In this study, we evaluated the usefulness of DNA and contaminants analysis (total mercury - T-Hg) in cephalopod beaks in order to assess their applicability as tools in marine ecology studies. We concluded that, when applying DNA techniques to cephalopod beaks from Antarctic squid species, when using flesh attached to those beaks, it was possible to obtain DNA and to successfully identify cephalopod species; DNA was not found on the beaks themselves. This study also showed that it is possible to obtain information on T-Hg concentrations in beaks: the T-Hg concentrations found in the beaks were 6 to 46 times lower than in the flesh of the same cephalopod species. More research on the relationships of mercury concentrations in cephalopod beaks (and other tissues), intra- and inter-specifically, are needed in the future. (C) 2015 Elsevier Ltd. All rights reserved.
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