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ISSN 2311-3219 - An International Triannual Journal
2020 | Volume 8 | Issue 1
Veterinary / Animal Sciences | Research article
Length-Weight Relationship of Tilapia zillii Fish Species Collected from Egbe Reservoir, Ekiti State, Southwest Nigeria
Olatunde Oginni*
Department of Animal and Environmental Biology, Adekunle Ajasin University, Aungba Akoko, Ondo State, Nigeria
Abstract
Sustainable exploitation is vital to biodiversity conservation, employment and food security. Tilapia zillii (Coptodon zillii) is an important species in the fishery of the Egbe reservoir, Ekiti State, Southwest Nigeria. To enhance its sustainable management, a study of its length and weight distribution and the length-weight relationship was carried out. Fish samples were collected from the catch of artisanal fishermen operating in the reservoir. Mean fish length and weight were 23.7 cm and 260.7 g, respectively. Catch lengths were higher than length at maturity recorded for the fish. The sex ratio was 1.00:1.38 in favor of males. The condition factor was 1.93, 1.94 and 1.91 for both sexes, females and males, respectively. While the b values were 3.196, 2.692 and 3.682 for both sexes, females and males, respectively. The results showed sexual dimorphism in the growth pattern of the fish in the water body. The current exploitation level as revealed from the catch lengths indicates that Tilapia zillii fish species is not under threat in the water body. It is therefore capable of contributing to gainful employment and animal protein security in its environment.
A R T I C L E I N F O
Received
December 17, 2019
Revised
February 21, 2020
Accepted
February 24, 2020
Published
April 10, 2020
*Corresponding Author
Olatunde Oginni
E-mail
olatundeoginni@yahoo.com
Phone
+2348033615462
Keywords
Tilapia zillii
Egbe reservoir
Length-Weight
Condition Factor
