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The possible interactive effect of the chlorides of copper and mercury on the euryhaline amphipod Gammarus duebeni in 100% sea water was examined using the following indices: (i) 96 h LC50 values, (ii) urine production rates and (iii) degree of mercury accumulation. Both (a) the interaction of the chlorides of mercury and copper together in solution and (b) the influence of cupric chloride pre-treatment of individuals prior to exposure to mercuric chloride were investigated. Presence of a sublethal level of cupric chloride protected G. duebeni against the toxic action of mercuric chloride. Cupric chloride pretreatment was not so effective. The nature of the interaction between mercury and copper is discussed. 相似文献
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