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Abstract
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Article Information:
The Length-Weight Relationships of Brackish Water/Marine Fish Species Assemblage in a Niger Delta Mangrove Creek, Nigeria
B.J. Oribhabor, A.E. Ogbeibu and M.T. Udo
Corresponding Author: Oribhabor Blessing Julius
Submitted: 2011 September, 08
Accepted: 2011 September, 30
Published: 2011 November, 15 |
Abstract:
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The fish species assemblage in a Niger Delta mangrove creek, Nigeria, of 25 species from 16
families comprising a total of 1163 individuals were determined for the parameters of length-weight
relationships, from November, 2004 to June, 2006. The fish samples were collected from three stations at flood
tides. The fishing gears used were hooks and lines, and cast net. The estimated values of the exponent (b)
ranged between 0.97 (Epinephelus aeneus) and 5.67 (Dasyatis margarita). The mean value of ‘b’ for all the
species was 3.16 (SD = 0.093). Apart from b values of E. aeneus (0.97), L. goreensis (2.15), T. guineensis
(4.25) and D. margarita (5.67) which were significantly different from 3, indicating allometric growth pattern,
the other species had ‘b’ values not significantly different from 3, indicating isometric growth pattern. The
regression coefficient (r) ranged from 0.22 for E. aeneus to 0.99 for T. lepturus. Except for E. aeneus, the r for
the length-weight relationships of the fishes is high which indicate increase in length with increase in weight.
Except for E. aeneus, L. agennes and D. margarita, analysis of variance (ANOVA) showed that there was
highly significant regression (p<0.001; 0.01; 0.05) of weight on length for the fish species. This study adds
more information to the existing data on the management and culture of fish species in Buguma Creek which
has the first Brackish Water Experimental Fish Farm in Nigeria.
Key words: Fish species, length weight relationships, mangrove creek, Niger delta, Nigeria, ,
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Cite this Reference:
B.J. Oribhabor, A.E. Ogbeibu and M.T. Udo, . The Length-Weight Relationships of Brackish Water/Marine Fish Species Assemblage in a Niger Delta Mangrove Creek, Nigeria. Current Research Journal of Biological Sciences, (6): 616-621.
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ISSN (Online): 2041-0778
ISSN (Print): 2041-076X |
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