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E3 Journal of Agricultural Research and Development

E3 Journal of Agricultural Research and Development Vol. 2 (2) pp. 044-052, May 2012; © E3 Journals; ISSN 2276-9897

Preliminary studies of the length-weight relationships and condition factor of five fish species from Ibiekuma stream, Ekpoma, Edo state, Nigeria

1 Department of Animal Science, Faculty of Agriculture, Ambrose Alli University, Ekpoma
2 Department of Computer Science, Faculty of Physical Sciences, University of Benin, Benin City, Nigeria.
*Corresponding Author E-mail:
Accepted 3 March 2012


This study examined the length - weight relationships and condition factor of five freshwater fishes: Papyrocranus afer, Parachanna obscura, Malapterurus electricus, Tilapia mariae and Oreochromis niloticus from Ibiekuma Stream, Ekpoma, Nigeria. The results of the length - weight analyses showed that all the fishes exhibited negative allometric growth pattern with regression exponent b values less than 3, while the correlation coefficients (r) obtained which ranged from 0.850 to 0.963 revealed a high degree of positive correlation. The analyses also showed that the condition factor of P. afer and P. obscura were less than 1, and implied that these fishes were not in good physiological state of well-being in the stream, but the values for M. electricus, T. mariae and O. niloticus were greater than 1 and implied that they were in good physiological condition. Other complementary investigations of the length-weight relationships and condition factor of these fishes and indeed of the morphometrics and general biology of the fishes of this stream are advocated.

Keywords: Length - weight relationships, condition factor, fish species, Ibiekuma Stream

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