Lethal toxicity of phosphamidon on the juveniles of Anahas testudineus (Bloch) and Etroplus maculatus (Bloch)


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Authors

  • T V Anna Mercy College of Fisheries, Panangad, Cochin-682 506, India
  • B Madhusoodana Kurup College of Fisheries, Panangad, Cochin-682 506, India
  • J R Nair College of Fisheries, Panangad, Cochin-682 506, India
  • B T Sulekha College of Fisheries, Panangad, Cochin-682 506, India

Abstract

The present study was undertaken to delineate the lethal toxicity of phosphamidon
which is a widely used organophosphate pesticide in the paddy fields in Kuttanad
the rice bowl of Kerala on Anabas testudineus and Etroplus maculatus. these two
species of fishes have important share to contribute to the fishery wealth of
Kuttanad. The 48 h LC^^ values of phosphamidon for Anabas and Etroplus were
found to be 39.34 and 2.97 ppm respectively. From the experimental results it
is apparent that Anabas is much more resistant to phosphamidon than Etroplus.
Anabas being an obligate air breathing fish takes in only les pesticide through the
gill. These LCj^ values can be utilised for sublethal toxicity studies, which will
help to arrive at a maximum allowable toxicant concentration.

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Author Biographies

  • T V Anna Mercy, College of Fisheries, Panangad, Cochin-682 506, India
    College of Fisheries, Panangad, Cochin-682 506, India
  • B Madhusoodana Kurup, College of Fisheries, Panangad, Cochin-682 506, India
    College of Fisheries, Panangad, Cochin-682 506, India
  • J R Nair, College of Fisheries, Panangad, Cochin-682 506, India
    College of Fisheries, Panangad, Cochin-682 506, India
  • B T Sulekha, College of Fisheries, Panangad, Cochin-682 506, India
    College of Fisheries, Panangad, Cochin-682 506, India

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How to Cite

Anna Mercy, T. V., Kurup, B. M., Nair, J. R., & Sulekha, B. T. (2011). Lethal toxicity of phosphamidon on the juveniles of Anahas testudineus (Bloch) and Etroplus maculatus (Bloch). Indian Journal of Fisheries, 47(1), 87-90. https://epubs.icar.org.in/index.php/IJF/article/view/8577