Copper, zinc and cadmium in marine cage fish farm sediments: An extensive survey

Rebecca J Dean, Tracy Shimmield, Kenny Black

Research output: Contribution to journalArticle

95 Citations (Scopus)

Abstract

The diet of cage-farmed Atlantic salmon contains a range of trace metals, some of which have toxic properties, e.g. zinc, copper and cadmium. A survey of metal concentrations (ICP-MS analysis) in surface sediments of ca. 70 stations was carried out in both May and December 2000 around a Scottish fish farm. Additionally, at 13 stations on 2 orthogonal transects centered on the farm, sediments were analysed at I cm intervals to 8 ern depth. Maximum concentrations in surface sediments were 921, 805 and 3.5 mu g g(-1) for Zn, Cu and Cd, respectively, and were found at stations near the fish farm. The calculated losses from the farm (feed input minus fish output) were 87.0%, 4.3% and 14.0% of the background-corrected inventories for Zn, Cu and Cd, respectively, indicating that for Cu and Cd at least, the feed is not the only source. (c) 2006 Elsevier Ltd. All rights reserved.
Original languageEnglish
Pages (from-to)84-95
Number of pages12
JournalENVIRON POLLUT
Volume145
Issue number1
DOIs
Publication statusPublished - 2007

Keywords

  • ECOLOGICAL IMPACT
  • Environmental Sciences
  • ATLANTIC SALMON
  • WILD FISH
  • ORGANIC ENRICHMENT
  • VERTICAL-DISTRIBUTION
  • CONTINENTAL-MARGIN SEDIMENTS
  • TRACE-METALS
  • SALMON SALMO-SALAR
  • MACROBENTHIC COMMUNITY
  • CONTAMINATION

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