Bioensayos preliminares para evaluar la toxicidad del lindano sobre Simocephalus vetulus (O.F.Muller, 1776) (Crustacea: Cladocera)

Abstract

Lindano is known by its toxicity and its capacity of bioacumulation in organisms, becoming a material dangerous for the human health and the environment. The objective of the present work was to evaluate the acute toxicity of the lindane on the cladoceran Simocephalus vetulus. Cultures were made in camera of incubation in conditions controlled with average differentials (seaweed and in-fusorians). The bioensayos were implemented with a control, 5 dilutions and 3 retorts. The value of CL50 to 48 hours of exhibition as opposed to the different concentrations from lindane was of 11,4 μg/l, which reflects the greater sensitivity of the organism proves in relation to other antecedents.