Bibliographic Details
| Title: |
COPPER BIOACCUMULATION BY THE FRESHWATER SNAIL LYMNAEA PEREGRA: A TOXICOLOGICAL MARKER OF ENVIRONMENTAL AND HUMAN HEALTH? |
| Authors: |
Pyatt, F. Brian1 brian.pyatt@ntu.ac.uk, Metcalfe, Matthew R.1, Pyatt, Andre |
| Source: |
Environmental Toxicology & Chemistry. Mar2003, Vol. 22 Issue 3, p561-564. 4p. 3 Charts, 4 Graphs. |
| Subjects: |
Lymnaea, Snails, Copper, Pollution, Bioaccumulation, Biochemistry |
| Abstract: |
Snails (Lymnaea peregra) were exposed to both low and high concentrations of copper (as copper nitrate) under controlled conditions and then were sacrificed and dissected; various tissues/organs were removed and subsequently analyzed by atomic absorption spectrophotometry to determine both the copper concentration and the nature of localization. At low concentrations, bioaccumulation was evident in various tissues/organs; a dose response occurred in tissues derived from both the head and foot. At high concentrations, the copper concentrations of the liver-like body and kidney became massively enhanced. There was some variability in the ranking of tissues/organs with regard to copper bioaccumulation--this was predominantly linked to the copper concentration to which the snails were exposed. Mechanisms of copper bioaccumulation are reviewed and comparisons with other organisms made. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
