Journal of Fisheries and Aquatic Science 2 ( 4 ): 275 - 284 , 2007
Francis O. Arimoro, Chukwuji M.A. Iwegbue and Ogheneghalome Osiobe
Research Journal of Environmental Sciences 2 ( 3 ): 209 - 220 , 2008
Chukwujindu M.A. Iwegbue, Godwin E. Nwajei and Francis O. Arimoro
Research Journal of Environmental Sciences 1 ( 5 ): 220 - 228 , 2007