کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4427410 | 1309157 | 2007 | 12 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Copper, zinc and cadmium in marine cage fish farm sediments: An extensive survey Copper, zinc and cadmium in marine cage fish farm sediments: An extensive survey](/preview/png/4427410.png)
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 1 cm intervals to 8 cm depth. Maximum concentrations in surface sediments were 921, 805 and 3.5 μg 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.
Journal: Environmental Pollution - Volume 145, Issue 1, January 2007, Pages 84–95