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 language | English |
|---|---|
| Pages (from-to) | 84-95 |
| Number of pages | 12 |
| Journal | ENVIRON POLLUT |
| Volume | 145 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 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