International Journal of Zoological Research1811-97781811-9786Academic Journals Inc.10.3923/ijzr.2006.77.83Heterobranchus bidorsalis and Clarias gariepinus)]]>SiakpereO. Kori-AkeJ. E.G.AvworoU. M.1200621Experiments were conducted to ascertain the sublethal effects of waterborne cadmium at 0.5 and 1.0 mg L-1 on a freshwater fish Heteroclarias (a hybrid of Heterobranchus bidorsalis and Clarias gariepinus) following a 15 days exposure in a renewal static bioassay system. The effects were assessed by examining the haematological profile. Exposure to cadmium caused a dose-dependent decrease in haemoglobin, haematocrit and erythrocyte counts. These changes are obvious indication of anaemia of the normochromic type. The erythrocytic indices of MCHC, MCH and MCV were similarly decreased apart from one case. Differential leucocyte count and erythrocyte sedimentation rate were also affected. Plasma levels of protein were lowered and glucose levels were elevated in the exposed fish when compared to the control. The results of this study highlight the stress to which freshwater fish are exposed through the uncontrolled discharge of heavy metals in the aquatic environment.]]>Agrawal, S.J. and A.K. Srivastava,19801797100Allen, P.,1994Oreochromis aureus during chronic exposure.]]>53684692Barnhart, R.A.,1969Salmo gairdneri (Richardson).]]>98411418Chambers, M.B., P. Davies and B. Knott,199957283295Blaxhall, P.C.,19724593604Brown, V., D. Shurben, W. Miller and M. Crane,1994Oncorhychus mykiss walbaum and brown trout Salmo trutta L. over extended periods.]]>293846Casillas, E. and L.S. Smith,1977Salmo gairdneri).]]>10481491Christensen, G.M., J. T. Fiandt and B.A. Poeschl,1978Salvelinus fontinalis) blood.]]>125160Cuthbert, K.C., A.C. Brown and M.J. Orren,197642203208Ellis, A.E.,19811981pp: 147-170pp: 147-170Fagbenro, O.A.,199251117Gardner, G.R. and P.P. Yevich,19702721852196Guyton, A.C.,19918th Edn.,pp: 1014pp: 1014Heath, A.G.,19912nd Edn.,Pages: 359Pages: 359Hibiya, T.,1982pp: 147pp: 147Iwama, G.K., G.L. Greer and P.A. Arkin,1976Oncorhynchus kisutch) in response to acute exposure to dehydroabietic acid (DHAA) at different exposure levels.]]>33285289Kori-Siakpere, O.,1996Clarias isheriensis (sydenham) exposed to sublethal concentrations of water borne lead.]]>89398Larsson, A.,19751975pp: 258pp: 258Larsson, A., C. Haux and M.L. Sjobeck,19859250281Mackay, W.C. and D.D. Beatty,1968Catastomus commersonii and the northern pike Esox lucius.]]>46797803Martinez, M., J.D. Ramo, A. Torreblanca and J. Diaz-Mayans,1999Artemia parthenogenetica.]]>172315325Nordberg, M.,197815381404Nussey, G., J.H.J.V. Vuren and H.H.D. Preez,1996Oreochromis mosambicus S.]]>264755Omoregie, E., E.B.C. Ufodike and I.R. Keke,1990Oreochromis niloticus exposed to sublethal concentrations of gammalin 20 and actellic 25 EC.]]>53336Parrish, P.R.,19851985pp: 31-57pp: 31-57Rand, G.M. and S.R. Petrocelli,19851985pp: 31-57pp: 31-57Singh, S.R. and B.R. Singh,1982Mystus vittatus (Bloch).]]>816Sprague, J.B.,1973528630Soivio, A. and A. Oikari,1976Esox luscious L.]]>8397411Smit, G.L., J. Hattingh and A.P. Burger,197915673677Swift, D.J. and R. Lloyd,1974Salmo gairdneri (Richardson) exposed to hypoxia.]]>6379387Svobodova, Z., B. Vykusova and J. Machova,19941994pp: 39-52pp: 39-52Merwe, M.V.D., J.H.J.V. Vuren and H.H.D Preez,1993Clarias gariepinus (Burchell 1822) a preliminary study.]]>367786Wedemeyer, G.,1972Oncorhynchus kisutch) and steelhead trout (Salmo gairdneri).]]>2917801783Wedemeyer, G. and W.T. Yasutake,197789119119Zachariassen, K.E., T. Aunaas, J.F. Borseth, S. Einarson, T. Nordtug, A. Olsen and G. Skervo,19911007779Blaxhall, P.C. and K.W. Daisley,19735771781