Trace elements in striped dolphins (Stenella coeruleoalba) from the Eastern Mediterranean: A 10-years perspective

Efrat Shoham-Frider, Oz Goffman, Yehudit Harlavan, Nurit Kress, Danny Morick, Mia Roditi-Elasar, Edna Shefer, Dan Kerem

Research output: Contribution to journalArticlepeer-review

Abstract

Concentrations of Hg, Se, Cd, Cu, Zn, Fe, Mn and As, in kidney, liver, muscle and blubber from 7 specimens of Stenella coeruleoalba, stranded along the Israeli Mediterranean coast (IMC) from 2006 to 2011 (2011-series) were determined and compared to previous data on S. coeruleoalba from the IMC (2001-series). No differences were observed in essential and toxic elements concentrations, between the two series, except for hepatic Mn which was higher in the latter. Hg/Se molar ratios in blubber, kidney and liver increased linearly with log Hg concentrations, while muscle was more heterogenic in this respect. Means (± SD) of hepatic Hg concentrations (134 ± 89 and 181 ± 200 mg kg− 1, from the 2011 and 2001 series, respectively) were similar to that found in 2007–2009 specimens from Spain, possibly reflecting the relatively high natural background levels of mercury in the Mediterranean Sea.

Original languageEnglish
Pages (from-to)624-632
Number of pages9
JournalMarine Pollution Bulletin
Volume109
Issue number1
DOIs
StatePublished - 15 Aug 2016

Bibliographical note

Publisher Copyright:
© 2016 Elsevier Ltd

Keywords

  • As
  • Hg/Se molar ratio
  • Mediterranean
  • S. coeruleoalba
  • Time-trend
  • Trace elements

ASJC Scopus subject areas

  • Oceanography
  • Aquatic Science
  • Pollution

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