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

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 fis...

Full description

Bibliographic Details
Published in:Environmental Pollution
Main Authors: Dean, Rebecca J, Shimmield, Tracy, Black, Kenny
Format: Article in Journal/Newspaper
Language:English
Published: 2007
Subjects:
ECOLOGICAL IMPACT
Environmental Sciences
ATLANTIC SALMON
WILD FISH
ORGANIC ENRICHMENT
VERTICAL-DISTRIBUTION
CONTINENTAL-MARGIN SEDIMENTS
TRACE-METALS
SALMON SALMO-SALAR
MACROBENTHIC COMMUNITY
CONTAMINATION
Atlantic salmon
Salmo salar
Online Access:https://pure.uhi.ac.uk/en/publications/f374de7a-c170-4c10-9dcd-3623f361c1af
https://doi.org/10.1016/j.envpol.2006.03.050
Description
Summary: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.

Similar Items