Farmers’ perceptions of climate change and its implication on livestock production in mixed-farming system areas of Bale highlands, Southeast Ethiopia; Challenges and extents of Soil and Water Conservation measures in Guba-Lafto Woreda of North Wollo, Ethiopia; Evaluation of milk production performance of lactating Fogera cows fed with urea and effective micro-organisms treated rice straw as basal diet.

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

OBASOHAN, E. E1 * , IMASUEN, J. A1 , ISIDAHOME, C. E1 , OBASOHAN, E. E2
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: ewaensohan@yahoo.com.
Accepted 3 March 2012

Abstract

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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