Abstract
The length-weight relatonship and condition factor of four mormyrid species namely Mormyrus rume, Hyperopisus bebe, Campylomormyrus tamandua and Gnathonemus petersii from Anambra river were investigated from October 2002 to March 2004. In al400 species M. rume, 384 H. bebe417 C. tamandua and 335 G. petersii were sampled for the study Length-weigh relationship showed that the exponent “b,\' were 3.067, 2.459, 3.201 and 3.114 for M. rume, H. bebe, C. tamandua and G. petersii respectively. The mormyrid species studied with exception of H. bebe exhibited isometric growth and the correlation coefficients were positive and highly sgnificant (P Keywords : Mormyrids, Length-weight relationship, Condition factor Animal Research International Vol. 3 (1) 2006 pp. 426-430
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