Abstract
The effects of prior exposure to unlabelled naphthalene on the processes of uptake, tissue distribution and elimination of [1-14C] naphthalene by mussels (Mytilus edulis) were examined. Mussels collected from Whitsand Bay (S. W. England) in October 1980 were either held unexposed or exposed to unlabelled naphthalene (0.5 μg 1−1) for 4 wk, prior to receiving a 4 h pulse of [1-14C] naphthalene in the medium (7 μg 1−1). After 4 h exposure to [1-14C] naphthalene, the major tissues (digestive gland, gills, kidneys, mantle and remaining tissue) showed exponential depuration curves which could be resolved into two statistically significant components. The kinetics of elimination and the biological half-times of [1-14C] naphthalene in the tissues were determined. Mussels pre-exposed to unlabelled naphthalene had a significantly higher rate of elimination of [1-14C] naphthalene from the gills and kidneys. These results indicate that the toxicant, naphthalene, is actively excreted from the body by the gills and kidneys and the process is enhanced by prior exposure to the toxicant.
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Communicated by J. Mauchline, Oban
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Widdows, J., Moore, S.L., Clarke, K.R. et al. Uptake, tissue distribution and elimination of [1-14C] naphthalene in the mussel Mytilus edulis . Mar. Biol. 76, 109–114 (1983). https://doi.org/10.1007/BF00392727
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DOI: https://doi.org/10.1007/BF00392727