| assessment of heavy-metal profile of the new calabar river and its impact on juvenile clarias gariepinus. | we have determined the heavy-metal status of the lower reaches of the new calabar river in the niger delta region over a 40-km-long distance, and its impact on the development of catfish (juvenile clarias gariepinus). the total mean concentrations of dissolved trace metals in the river were 0.01, 0.85, 0.56, 2.08, 0.05, 12.0, and 6.59 mg/l for hg, pb, cd, cu, cr, fe, and zn, respectively. the accumulated concentration of trace metals in the muscles of different mature fish caught from the river ... | 2006 | 17193219 |
| heavy metal profile of water, sediment and freshwater cat fish, chrysichthys nigrodigitatus (siluriformes: bagridae), of cross river, nigeria. | cross river serves as a major source of drinking water, transportation, agricultural activities and fishing in cross river state, nigeria. since there is no formal control of effluents discharged into the river, it is important to monitor the levels of metals contaminants in it, thus assessing its suitability for domestic and agricultural use. in order to determine this, three sampling stations designated as ikom (station i), obubra ogada (station ii) and calabar (station iii) were randomly sele ... | 2012 | 23025098 |