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Abstract
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Article Information:
Length-Weight Relationships and Condition Factors of Twenty-One Fish Species in Ologe Lagoon, Lagos, Nigeria
C.A. Kumolu-Johnson and P.E. Ndimele
Corresponding Author: NDIMELE, PRINCE EMEKA
Submitted: 2010 June, 16
Accepted: 2010 August, 19
Published: 2010 October, 09 |
Abstract:
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This study describes the length-weight relationships (LWR) and condition factors of 21 fish species
from 15 families of ecological and economic importance, found in Ologe Lagoon, Lagos, Nigeria. A total of
1353 specimens were caught by local fishing gears from January, 2007 to December, 2007. The slope (b) values
obtained for the 21 fish species ranged from 2.012 to 2.991, and diferred significantly (p<0.005) from 3, which
indicates that most of the fish species have negative allometric growth. Liza falcipinnis was the only species
with isometric growth (b = 2.99). The condition factors (K) of the fish species ranged from 0.12 in Polydactylus
quadrifilis to 16.29 in Eutropius niloticus and about 86% of these condition factors fall outside the range
recommended as suitable for matured fresh water species in the tropics. This indicates that Ologe Lagoon may
be unfavourable to fishes in the lagoon. 5 new records (Hyperopisus bebe occidentalis, Eutropius niloticus,
Bathygobius soporator, Trachinotus goreensis, Uranoscopus cadenati) of length-weight relationships, which
were not in FishBase was also reported.
Key words: Allometric growth, ecological importance, economic importance, isometric growth, length, Ologe Lagoon, weight
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Cite this Reference:
C.A. Kumolu-Johnson and P.E. Ndimele, . Length-Weight Relationships and Condition Factors of Twenty-One Fish Species in Ologe Lagoon, Lagos, Nigeria. Asian Journal of Agricultural Sciences, (4): Page No: 174-179.
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ISSN (Online): 2041-3890
ISSN (Print): 2041-3882 |
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