Acute toxicity is usually determined with short-term exposure of fish to a series of concentrations of a chemical. In general, there are acute and chronic endpoints in aquatic toxicity. ![]() Vertebrates (usually fish), representing "secondary consumers"ĮURL ECVAM's work focuses on methods which could replace, reduce or refine the use of fish.crustaceans such as Daphnia spp.), representing "primary consumers/secondary producers" ![]() Algae or plants, representing "primary producers". ![]() The assessment of aquatic toxicity is an important component of the environmental hazard and risk assessment of all types of chemicals, and is therefore included in several pieces of EU chemicals legislation.Īquatic toxicity in general refers to the effects of a chemical on organisms living in water and is determined with organisms representing the three trophic levels:
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