The significance of cephalopod beaks in marine ecology studies: Can we use beaks for DNA analyses and mercury contamination assessment?
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- 作者：José ; Carlos Xaviera ; b ; jccx@cantab.net" class="auth_mail" title="E-mail the corresponding author ; Só ; nia Ferreirac ; Sí ; lvia Tavaresd ; Nuno Santosc ; Clá ; udia Leopoldina Mieirod ; f ; Phil N. Trathanb ; Sí ; lvia Lourenç ; oa ; Filipe Martinhod ; Dirk Steinkee ; José ; Secof ; g ; Eduarda Pereiraf ; Miguel Pardald ; Yves Cherelh
- 关键词：Squid beaks ; Toxicology ; DNA ; Mercury levels
- 刊名：Marine Pollution Bulletin
- 出版年：2016
- 出版时间：15 February 2016
- 年：2016
- 卷：103
- 期：1-2
- 页码：220-226
- 全文大小：434 K
文摘
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Cephalopod beaks found in the diet of predators have been a major source of scientific information.
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We evaluated the usefulness of DNA and contaminants analysis (total mercury- T-Hg) in cephalopod beaks.
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We concluded that it does not allow obtaining DNA from beaks but it was possible using flesh attached to those beaks.
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The T-Hg concentrations were 6 to 46 times lower than in the flesh (beaks: from 0.004 to 0.047 mg kg− 1 dry weight)
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No clear relationships were found between T-Hg concentrations in beaks and body mass of the individuals studied.
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This study aims to stimulate more research on the relationships between mercury concentrations in beaks.