Effect of simulated acid rain on the survival, mortality, behaviour and morphology of African mud catfish Clarias gariepinus (Burchell, 1822)
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| Format: | Artículo científico |
| Language: | en |
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Universidade Estadual de Maringá
2018
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| _version_ | 1876452676378558464 |
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| author | Moshood Keke Mustapha |
| author_facet | Moshood Keke Mustapha |
| contents | Effect of simulated acid rain on the survival, mortality, behaviour and morphology of African mud catfish Clarias gariepinus (Burchell, 1822) Moshood Keke Mustapha Zainab Olayide Mohammed Agrociencias pH adults stress juveniles fingerlings This study simulated acidic habitat for different life stages of Clarias gariepinus to know the effect on survival, mortality, morphology and behaviour. The fish were exposed to pHs 3, 4, 5, 6 and 8.01 (control) for 35 days. 100% mortality was recorded for all the life stages in pH 3, and 80, 62 and 36% of mortality of fingerlings, juveniles and adults respectively were recorded in pH 4. In pH 5, 30, 26 and 12% mortalities of fingerlings, juveniles and adults respectively were recorded and at pH 6 mortalities of fingerlings, juveniles and adults were 12, 10 and 4% respectively. Control pH mortalities were 10, 6 and 2% for fingerlings, juveniles and adults respectively. Mortality was due to lack of oxygen uptake, stress and circulatory collapse. All these elicited the behavioural responses and morphological abnormalities like erratic swimming, gasping, dark body colouration and lethargy. The study showed that different life stages of C. gariepinus tolerate different acidic pH waters, with high mortalities of the fingerlings, juveniles and adults in pHs 3, pH 4 is sub-lethal to fingerlings, juveniles and adult, pH 5 sub-lethal to fingerlings and sub-optimal for juveniles, and pH 6 optimal for all life stages. 2018 artículo científico 1806-2636 https://www.redalyc.org/articulo.oa?id=303158407022 https://www.redalyc.org/journal/3031/303158407022/ https://www.redalyc.org/journal/3031/303158407022/html/ https://www.redalyc.org/journal/3031/303158407022/303158407022.epub https://www.redalyc.org/journal/3031/303158407022/movil 10.4025/actascianimsci.v40i1.36900 en http://www.redalyc.org/revista.oa?id=3031 Acta Scientiarum. Animal Sciences application/pdf Universidade Estadual de Maringá Acta Scientiarum. Animal Sciences (Brasil) Vol.40 |
| format | Artículo científico |
| id | redalyc_303158407022 |
| institution | Redalyc |
| language | en |
| publishDate | 2018 |
| publisher | Universidade Estadual de Maringá |
| spellingShingle | Effect of simulated acid rain on the survival, mortality, behaviour and morphology of African mud catfish Clarias gariepinus (Burchell, 1822) Moshood Keke Mustapha Agrociencias pH adults stress juveniles fingerlings Effect of simulated acid rain on the survival, mortality, behaviour and morphology of African mud catfish Clarias gariepinus (Burchell, 1822) Moshood Keke Mustapha Zainab Olayide Mohammed Agrociencias pH adults stress juveniles fingerlings This study simulated acidic habitat for different life stages of Clarias gariepinus to know the effect on survival, mortality, morphology and behaviour. The fish were exposed to pHs 3, 4, 5, 6 and 8.01 (control) for 35 days. 100% mortality was recorded for all the life stages in pH 3, and 80, 62 and 36% of mortality of fingerlings, juveniles and adults respectively were recorded in pH 4. In pH 5, 30, 26 and 12% mortalities of fingerlings, juveniles and adults respectively were recorded and at pH 6 mortalities of fingerlings, juveniles and adults were 12, 10 and 4% respectively. Control pH mortalities were 10, 6 and 2% for fingerlings, juveniles and adults respectively. Mortality was due to lack of oxygen uptake, stress and circulatory collapse. All these elicited the behavioural responses and morphological abnormalities like erratic swimming, gasping, dark body colouration and lethargy. The study showed that different life stages of C. gariepinus tolerate different acidic pH waters, with high mortalities of the fingerlings, juveniles and adults in pHs 3, pH 4 is sub-lethal to fingerlings, juveniles and adult, pH 5 sub-lethal to fingerlings and sub-optimal for juveniles, and pH 6 optimal for all life stages. 2018 artículo científico 1806-2636 https://www.redalyc.org/articulo.oa?id=303158407022 https://www.redalyc.org/journal/3031/303158407022/ https://www.redalyc.org/journal/3031/303158407022/html/ https://www.redalyc.org/journal/3031/303158407022/303158407022.epub https://www.redalyc.org/journal/3031/303158407022/movil 10.4025/actascianimsci.v40i1.36900 en http://www.redalyc.org/revista.oa?id=3031 Acta Scientiarum. Animal Sciences application/pdf Universidade Estadual de Maringá Acta Scientiarum. Animal Sciences (Brasil) Vol.40 |
| title | Effect of simulated acid rain on the survival, mortality, behaviour and morphology of African mud catfish Clarias gariepinus (Burchell, 1822) |
| topic | Agrociencias pH adults stress juveniles fingerlings |
| url | https://www.redalyc.org/articulo.oa?id=303158407022 https://www.redalyc.org/journal/3031/303158407022/ https://www.redalyc.org/journal/3031/303158407022/html/ https://www.redalyc.org/journal/3031/303158407022/303158407022.epub https://www.redalyc.org/journal/3031/303158407022/movil |