![]() The heavy metals were determined using AAS while PCB level was determined using GC-MS. The fish species’ condition factor was determined. Ten adult fish species three each of Argentina silus, Gadus chalcogrammus, Gadus morhua, Atlantic mackerel, Micropogonias undulatus, Urophycis sp., Chrysichthys nigrodigitatus, Oreochromis niloticus, Clupea harengus, Trachurus trachurus, imported into Lagos were purchased. The objective of this study was to evaluate the relationship between condition factor (physiologic wellbeing) of the fishes, PCBs, and heavy metal accumulation.Ten adult fish species three each of Chrysichthys nigrodigitatus, Trachinotus teraia, Liza dumerilli, Tilapia guieensis, Pseudotolithus elongatus, Pomadasys jubelini, Polydactylus quadrifilis, Caranx hippos, Sphyreana barracuda, Arius heudoloti,were acquired at Epe Lagoon. Keuretoe River is contaminated with cadmium and the fishes should not be consumed.įish is an important part of the human diet, are at the top of the aquatic food chain with a high propensity to accumulating contaminants like heavy metals and polychlorinated biphenyls (PCBs) which are toxic to humans. The higher of cadmium pollution was recorded in Station 3 and gourami accumulated higher cadmium than other fishes studied. The Duncan test showed that high cadmium accumulation was found in gourami at Station 2 and in mottled eel at Station 1, the concentrations were significantly different from Cd content in bagrid catfish at all sampling locations. Anova test showed that the sampling locations did not significantly affect the cadmium accumulation in fishes, but the fish species gave significantly effect on the cadmium accumulation in their tissue. The result revealed that the cadmium concentration ranges between 0.0064 ppm and 0.0260 ppm. A total of three individual fishes at every sampling location were collected, the tissues were processed for Atomic Absorption Spectrophotometry (AAS) and data were analyzed by Anova followed by Duncan multiple range test. A total of three sampling locations were determined using the purposive of random sampling. The objectives of present study was to evaluate cadmium (Cd) concentration in some freshwater fishes found in Keuretoe Rivers and to determine the most effective freshwater fishes (Osphronemus goramy, Anguilla marmorata and Hemibagrus nemurus) in accumulating of cadmium. ![]()
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