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| Cadmium influx and efflux across perfused gills of the shore crab, Carcinus maenas |  |
| Pedersen, T.V.; Bjerregaard, P. (2000). Cadmium influx and efflux across perfused gills of the shore crab, Carcinus maenas Aquat. Toxicol. 48(2-3): 223-231 |
| In: Aquatic Toxicology. Elsevier Science: Amsterdam. ISSN 0166-445X, meer |
| Abstract |
Cadmium influx across perfused gills of the shore crab Carcinus maenas exposed to 9.0 μM cadmium in the external medium ranged from 0.6 to 2.0 nmol Cd2+ g−1 gill wet wt. per h. Cadmium efflux across perfused gills exposed to 9.0 μM cadmium in the internal medium ranged from 0.3 to 0.9 nmol Cd2+ g−1 gill wet wt. per h. There was no significant difference between cadmium influx and efflux across the gills. Cadmium influx across the gills was not detectable after exposure to lanthanum in the external medium, whereas cadmium efflux was unaffected by external as well as internal lanthanum. Cadmium influx was not affected when the internal medium was changed to Na-free medium, whereas efflux showed a fourfold increase when the gills were perfused with Na-free medium. Low pH in the external medium did not exert any significant effect on cadmium influx and efflux. |
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