Assessing Uptake Kinetics and Natural Depuration of Lead and Cadmium in African Catfish Juvenile
This study was carried out to assess the uptake kinetics of two heavy metals lead and cadmium in African catfish juveniles and their ability to depurate during subsequent exposure to clean water. Catfish juveniles with average weight and length of 5.3g and 5.8cm respectively were randomly selecte...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Joint Coordination Centre of the World Bank assisted National Agricultural Research Programme (NARP)
2020-04-01
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| Series: | Journal of Applied Sciences and Environmental Management |
| Subjects: | |
| Online Access: | https://www.ajol.info/index.php/jasem/article/view/194775 |
| _version_ | 1797228046844952576 |
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| author | B.B. Babatunde C.S. Dike C.J. Ibekwe |
| author_facet | B.B. Babatunde C.S. Dike C.J. Ibekwe |
| author_sort | B.B. Babatunde |
| collection | DOAJ |
| description |
This study was carried out to assess the uptake kinetics of two heavy metals lead and cadmium in African catfish juveniles and their ability to depurate during subsequent exposure to clean water. Catfish juveniles with average weight and length of 5.3g and 5.8cm respectively were randomly selected and acclimatized for two weeks. A 24-hour range finding test was carried out. In the definite test, the fish were stocked in 24 tanks containing 5litres of water with lead and cadmium treatment separately labeled according to predetermined concentrations 5, 10, 15, 20, 25 mg for lead and cadmium with 4 fish in each treatment. The water and fish were analyzed for the metals after 5 days to show percentage uptake of the metals from the water. The fish were transferred back into clean water to access the rate of depuration and water was changed continuously. After 4 days the fish were analyzed again to see if they were purged of the heavy metals. Based on these findings catfish have shown to be good accumulators of heavy metals but can be depurated if allowed to swim in clean water. Uptake percentage after the period of exposure to 5mg, 10mg, 15mg, 20mg, 25mg concentrations were 18.68, 10.17, 5.95, 1.41, 8.26 for cadmium and 20.47, 10.17, 8.76, 9.92, 10.08 for lead; Percentage of metals depurated after 4 days were 40.00, 80.70, 90.00, 77.78, 45 for cadmium and 73.045, 20.413, 41.425, 37.580, 61.141 for lead. Lead was readily taken but cadmium was readily depurated.
Keywords: Heavy metals, juvenile catfish, exposure, uptake and depuration
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| first_indexed | 2024-04-24T14:50:28Z |
| format | Article |
| id | doaj.art-9a5184d59ece4c78845a625c06ea3a6e |
| institution | Directory Open Access Journal |
| issn | 2659-1502 2659-1499 |
| language | English |
| last_indexed | 2024-04-24T14:50:28Z |
| publishDate | 2020-04-01 |
| publisher | Joint Coordination Centre of the World Bank assisted National Agricultural Research Programme (NARP) |
| record_format | Article |
| series | Journal of Applied Sciences and Environmental Management |
| spelling | doaj.art-9a5184d59ece4c78845a625c06ea3a6e2024-04-02T19:49:43ZengJoint Coordination Centre of the World Bank assisted National Agricultural Research Programme (NARP)Journal of Applied Sciences and Environmental Management2659-15022659-14992020-04-0124210.4314/jasem.v24i2.3Assessing Uptake Kinetics and Natural Depuration of Lead and Cadmium in African Catfish JuvenileB.B. BabatundeC.S. DikeC.J. Ibekwe This study was carried out to assess the uptake kinetics of two heavy metals lead and cadmium in African catfish juveniles and their ability to depurate during subsequent exposure to clean water. Catfish juveniles with average weight and length of 5.3g and 5.8cm respectively were randomly selected and acclimatized for two weeks. A 24-hour range finding test was carried out. In the definite test, the fish were stocked in 24 tanks containing 5litres of water with lead and cadmium treatment separately labeled according to predetermined concentrations 5, 10, 15, 20, 25 mg for lead and cadmium with 4 fish in each treatment. The water and fish were analyzed for the metals after 5 days to show percentage uptake of the metals from the water. The fish were transferred back into clean water to access the rate of depuration and water was changed continuously. After 4 days the fish were analyzed again to see if they were purged of the heavy metals. Based on these findings catfish have shown to be good accumulators of heavy metals but can be depurated if allowed to swim in clean water. Uptake percentage after the period of exposure to 5mg, 10mg, 15mg, 20mg, 25mg concentrations were 18.68, 10.17, 5.95, 1.41, 8.26 for cadmium and 20.47, 10.17, 8.76, 9.92, 10.08 for lead; Percentage of metals depurated after 4 days were 40.00, 80.70, 90.00, 77.78, 45 for cadmium and 73.045, 20.413, 41.425, 37.580, 61.141 for lead. Lead was readily taken but cadmium was readily depurated. Keywords: Heavy metals, juvenile catfish, exposure, uptake and depuration https://www.ajol.info/index.php/jasem/article/view/194775Heavy metals, juvenile catfish, exposure, uptake and depuration |
| spellingShingle | B.B. Babatunde C.S. Dike C.J. Ibekwe Assessing Uptake Kinetics and Natural Depuration of Lead and Cadmium in African Catfish Juvenile Journal of Applied Sciences and Environmental Management Heavy metals, juvenile catfish, exposure, uptake and depuration |
| title | Assessing Uptake Kinetics and Natural Depuration of Lead and Cadmium in African Catfish Juvenile |
| title_full | Assessing Uptake Kinetics and Natural Depuration of Lead and Cadmium in African Catfish Juvenile |
| title_fullStr | Assessing Uptake Kinetics and Natural Depuration of Lead and Cadmium in African Catfish Juvenile |
| title_full_unstemmed | Assessing Uptake Kinetics and Natural Depuration of Lead and Cadmium in African Catfish Juvenile |
| title_short | Assessing Uptake Kinetics and Natural Depuration of Lead and Cadmium in African Catfish Juvenile |
| title_sort | assessing uptake kinetics and natural depuration of lead and cadmium in african catfish juvenile |
| topic | Heavy metals, juvenile catfish, exposure, uptake and depuration |
| url | https://www.ajol.info/index.php/jasem/article/view/194775 |
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