Influence of Lindane on Survival and Osmoregulatory/Metabolic Responses of the Larvae and Adults of the Estuarine Crab, 'Eurypanopeus Depressus'

摘要

Short-term exposure to sublethal concentrations of the organochlorine insecticide, lindane, caused alterations in ionic and osmotic regulatory abilities and related compensatory metabolic mechanisms in the xanthid crab Eurypanopeus depressus. A lindane exposure concentration of 1.45 micrograms/l reduced hemolymph osmotic concentrations in adult crabs; however, chloride ion regulation was more sensitive, being disrupted at a lindane exposure concentration of 0.70 micrograms/l. Zoeae, megalopae and adults of the crab, E. depressus, appear to possess different response patterns to hypoosmotic stress and lindane exposure.