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| Main Authors: | , , , , , |
|---|---|
| Format: | Recurso digital |
| Language: | English |
| Published: |
Zenodo
2012
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| Subjects: | |
| Online Access: | https://doi.org/10.5281/zenodo.19690254 |
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Table of Contents:
- <p class="Default"><span> </span><span>Piscicidal activity of methanolic extract of Cestrum nocturnum leaves against predatory fish <em>Channa punctatus </em>and their behavioural changes were investigated. <em>C. nocturnum </em>leaves extract shows the remarkable piscicidal activity. It shows there was significant negative correlation between LC</span><span>50 </span><span>values and exposure periods when observed till 72 hr. During the toxicity experiment the fish shows the behavioral changes such as suffocation, rapid movement, and spiraling and convulsion period to death. Piscicidal activities show their dependence with concentration and time. This piscicidal activity may be due to their adverse effect on respiratory as well as energy production of fish. During bioassay experiments, a phenomenon of recovery was observed in stupefied fishes when fishes were shifted to untreated water after showing a partial symptom of death at LC</span><span>100 </span><span>dose. This indicates the tolerance and detoxifying capacity of fish to toxic principal. This nature of the fish stupefying property of <em>C</em>. <em>nocturnum </em>extracts could be advantageous in aquaculture for fish catching and releasing into new isolated site. </span></p>