Individual and Combined Acute Lethal Toxicity of Monocrotophos and 2,4-D on the Juveniles of Etroplus suratensis (Bloch) (Pisces: Cichlidae)
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Authors
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Rajasekharan Nair J.R.
College of Fisheries, Kerala Agricultural University, Panangad, Cochin - 682 506
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Anna Mercy T.V.
College of Fisheries, Kerala Agricultural University, Panangad, Cochin - 682 506
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Renu Maria George
2040 Pauline Blvd, IA, Ann Arbor, Michigan, USA
Keywords:
Monocrotophos, 2, 4-D, combined lethal toxicity, Etroplus suratensisAbstract
The 48 h individual and combined lethal toxicity of monocrotophos (insecticide) and 2,4-D (herbicide) on the juveniles of Etroplus suratensis were determined. The 48 h LC of monocrotophos was 5.85 mg.l4 (5.02 to 6.69) and that of 2,4-D was 267.4 mg.l"1 (228.93 to 305.86). The median additive index and its range for the combined toxicity were worked out. The calculated value was -0.185 (-0.541 to 0.083). A simple or strictly additive toxicity is indicated for the mixture of monocrotophos and 2,4-D. This shows an enhanced potential of the individual toxicant for pollution in the natural bodies when they are applied sequentially and even simultaneously.Downloads
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Submitted
2012-07-05
Published
2025-06-10
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Articles
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Copyright rests with the Society of Fisheries Technologists (India).How to Cite
J.R., R. N., T.V., A. M., & George, R. M. (2025). Individual and Combined Acute Lethal Toxicity of Monocrotophos and 2,4-D on the Juveniles of Etroplus suratensis (Bloch) (Pisces: Cichlidae). Fishery Technology, 37(2). https://doi.org/10.56093/ft.v37i2.21203
