Evaluation of piscicidal potential of Moringa oleifera Lam


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Authors

  • Chandan Denath
  • Lopamudra Sahoo

Keywords:

Drumstick, Weed fish, Acute toxicity, Mortality

Abstract

The sub-lethal concentrations of leaves and barks of Moringa oleifera (Drumstick) was evaluated against a weed fish (Puntius sophore) of nursery pond in Tripura and other NE States. The study was conducted using glass aquaria following the static bioassay method. The stocking density of fish (avg. weight: 0.2g/3.5cm) was 6/tank. The leaf and bark extracts were
prepared by soaking it in water (1:5) overnight. The test concentrations were 0, 10, 20, 40, 80, 160, 320 and 640 ml/L and test duration was 48 hr. Fish mortality and water quality were recorded at 12 hr. interval from the commencement of the trial. Fish showed erratic swimming, piping, ataxia, etc. within 15 min. of application of the extracts. Fish mortality was found dosedependent and it was increased with time. The concentration at which all fish were died (LC100) with both the extracts was 320 ml/L. The dose-response curves were best-fitted into logarithmic equations. The equation with leaf extract was y = 25.76ln(x) – 60.50 (R² = 0.97) at 24 hr. and y
= 24.04ln(x) – 43.47 (R² = 0.95) at 48 hr. The 24 hr. LC50 was 73.6 ml/L and 48 hr. LC50 was 50 ml/L for leaves. The equation with bark extract was y = 23.18ln(x) – 46.80, (R² = 0.94) at 24 hr. and y = 17.17ln(x) – 6.23, (R² = 0.96) at 48 hr. The 24 hr. LC50 was 66.7 ml/L and 48 hr. LC50 was 27.2 ml/L for bark. Overall, bark extract was more lethal than leaf extract on P. sophore. From this, it was concluded that, Drumstick plant could be a potential bio-piscicide for nursery pond preparation.

Author Biographies

  • Chandan Denath
    ICAR Research Complex for NEH Region, Tripura Centre, Lembucherra, West Tripura-799210
  • Lopamudra Sahoo
    ICAR Research Complex for NEH Region, Tripura Centre, Lembucherra, West Tripura-799210

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Submitted

2019-10-24

Published

2019-10-24

Issue

Section

Articles

How to Cite

Evaluation of piscicidal potential of Moringa oleifera Lam. (2019). Indian Journal of Hill Farming, 32(1). https://epubs.icar.org.in/index.php/IJHF/article/view/94793