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Uptake of copper and lead by a metaltolerant isopod Asellus meridianus Rac.
Author(s) -
BROWN BARBARA E.
Publication year - 1977
Publication title -
freshwater biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.297
H-Index - 156
eISSN - 1365-2427
pISSN - 0046-5070
DOI - 10.1111/j.1365-2427.1977.tb01671.x
Subject(s) - copper , hepatopancreas , biology , lead (geology) , zoology , ecology , chemistry , paleontology , organic chemistry
SUMMARY.Asellus meridianus from sites on the rivers Hayle and Gannel accumulates both copper and lead from experimental solutions: tolerant animals also accumulate copper and lead from metal‐enriched food. Copper‐tolerant animals accumulated up to 6.8 μg mg −1 copper after feeding on a copper‐enriched diet for 12 days whereas non‐tolerant animals showed no evidence of copper accumulation from food and no survivors remained after 8 days. Lead‐tolerant animals accumulated up to 28 μg mg −1 lead during a 14‐day exposure to a lead diet: non‐tolerant animals showed no accumulation of lead from food and no live animals remained after 10 days. A marked difference in the storage forms of copper is observed in the hepatopancreas of copper‐tolerant isopods, as compared with non‐tolerant animals, when samples are taken from natural populations.