Abstract
Higher tolerance (acclimation phenomena, adaptation) to oil (Tunisian crude oil) and oil dispersant (Finasol OSR 2, Finasol OSR 5), can be induced in Artemia salina after pre-exposure to these toxicants. The higher tolerance includes acute toxicity (LC 50) and sublethal physiological dysfunctions (respiration). High pre-exposure concentrations lead to rapid induction of acclimation phenomena but the higher resistance is partly lost after exposure of the acclimated animals to clean sea water. Exposure to low concentrations of the toxicants induce a slow appearance of adaptation phenomena, but higher tolerance does not disappear after exposure to clean sea water and is strengthened after the detoxification period.
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