The bioaccumulation of cadmium by the Blue Swimmer Crab Portunus pelagicus L.
- Publication Type:
- Journal Article
- Citation:
- Sci Total Environ, 2001, 279 (1-3), pp. 223 - 230
- Issue Date:
- 2001-11-12
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| Filename | Description | Size | |||
|---|---|---|---|---|---|
 | 2004004626.pdf | 533.28 kB |
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The Blue Swimmer Crab (Portunus pelagicus) accumulates only cadmium in the hepatopancreas after being presented elevated levels of the metals Cd, Cu, Zn, As, Fe and Al via a food source, the mussel Trychomya hirsuta. Over 8 weeks, crabs were fed a controlled diet to determine the accumulation of metals. Significant (P = 0.05) Cd accumulation was detected after 4 weeks of feeding. Food mussels were sourced from either 'contaminated' or 'uncontaminated' sites. Mussels from uncontaminated sites had an average Cd level of 0.07 microg/g wet weight and contaminated mussels had an average of 5.2 microg/g wet weight. The usefulness of presenting metals in this way to assess potential bioaccumulators is further considered against other presentation methods.
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