African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6578

Full Length Research Paper

Allometry and condition factors of African pike “Hepsetus odoe” actinopterygii in a lake

ADEDOKUN, Mathew Adewale1*, FAWOLE, O. O.2 and AYANDIRAN T. A.2
1Fisheries Technology Department, Oyo State College of Agriculture, P. M. B. 10 Igboora, Oyo State, Nigeria. 2Pure and Applied Biology Department, Ladoke Akintola University of Technology, P.M.B 4000 Ogbomoso, Oyo State, Nigeria.
Email: [email protected]

  •  Accepted: 24 June 2013
  •  Published: 04 July 2013

Abstract

The physiological growth of length and weight variables and the general welfare of Hepsetus odoe in Ogbomoso reservoir were investigated. The relationship regression coefficient indicated that the fish sampled showed allometric growth with regression factor of 0.88 in the natural population of fish. The mean K for 133 specimens was 1.5, while 1.5 and 1.6 were K based on sexes (male and female) respectively. Also, 1.789 ± 0.44 (F IV) and 1.880 ± 0.31(M IV) were the highest means K in female and male gonad development stages. The general well being of the sampled fish is affected by both gonads maturity and sexes (p>0.05) while habitat affinity, seasonal variations and size range do not (p<0.001).

 

Key words: Length-weight relationship, condition factors, resident water body, Hepsetus odoe.