Abstract: The growth pattern of Oreochromisniloticus and Sarotherodongalilaeus in Lake Geriyo of Adamawa State was investigated. One hundred (100) samples of each species were collected from fishermen catches at the landing site. They were transported to the Department of Fisheries Laboratory for identification, sexing morphometric measurement. The results showed that 58.0% and 56.0 % of the O.niloticus and S.galilaeus were female respectively while 42.0% and 44.0% were male respectively.. The length-weight relationship of O.niloticus showed a strong regression coefficient (r = 0.944) (p<0.05) for the combined sex, (r =0.903) (p<0.05) for female and (r=0.986) (p<.05) for male with b-value of 2.5, 3.1 and 2.8 respectively. The S.galilaeus also showed a regression coefficient of r=0.970; p<0.05 for the combined sex, r=0.953; p<0.05 for the female and r= 0.979; p<0.05 for the male with b-value of 3.4, 3.1 and 3.6 respectively. O.niloticus showed an isometric growth pattern both in male and female. The condition factor in O.niloticus are 1.93 and 1.95 for male and female respectively while that of S.galilaeus is 1.95 for both sexes.Positive allometric was observed in both species except the male O.niloticusthat showed negative allometric growth pattern. From the results of this study, the growth pattern of the two species indicated a good healthy environment.
Keywords: Lake Geriyo, Length-weight relationship, Oreochromisniloticus, Sarotherodongalilaeus.
Title: Growth Pattern and Condition Factor of Oreochromis Niloticus and Sarotherodon Galilaeus in Lake Geriyo, Adamawa State
Author: H. A., ADEDEJI, M. D.HYGINUS, T.A. IDOWU, O. A. SOGBESAN
International Journal of Life Sciences Research
ISSN 2348-313X (Print), ISSN 2348-3148 (online)
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