2000•Indian Journal of FisheriesOpen access

Lethal toxicity of monocrotophos on the juveniles of Anabas testudineus (Bloch) and Etroplus maculatus (Bloch)

T.V. Anna Mercy, B Madhusoodana Kurup, J Rajasekharan Nair, B T Sulekha

Abstract

Studies on the lethal toxicity of the pesticide on two species of fish namely Anabas testudineus and Etroplus maculatus inhabiting the Kuttanad areas revealed that the 48 h LC50 values of monocrotophos on the juveniles of the respective fishes were 102.59 and 3.36 ppm. Anabas was found to be more tolerant than Etroplus. Etroplus maculatus is a sensitive fish that can be used for toxicity monitoring in natural waters.

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Key concepts: Anabas testudineus, Monocrotophos, Biology, Fishery, Toxicity, Toxicology, Fish <Actinopterygii>, Zoology