The effects of two pesticides on Clarias gariepinus
Bioassays were carried out to determine the toxicity of two pesticides, Roundup and Gramoxone on Clarias gariepinus. The acute toxicity of both pesticides decreased towards the end of the bioassay period. The calculated safe concentrations for Roundup and Gramoxone are 0.99 ppm - 0.99 ppm and 0.09 ppm - 0.9 ppm respectively. Histological examination revealed that there were pathological changes in the gills and liver even when the fish were subjected to sub-lethal levels
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| Main Authors: | , , |
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| Format: | conference_item biblioteca |
| Language: | English |
| Published: |
1993
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| Subjects: | Aquaculture, Chemistry, Nigeria, fish culture, histopathology, pesticides, toxicity tests, Clarias gariepinus, |
| Online Access: | http://hdl.handle.net/1834/21239 |
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