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Abstract
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Article Information:
A Study of the Length-Weight Relationship and Condition Factor of Callinectes amicola (De Rochebrune, 1883) from Okpoka Creek, Niger Delta, Nigeria
J.F.N. Abowei and A.D.I. George
Corresponding Author: Abowei Jasper
Submitted: 2009 August, 17
Accepted: 2009 Sept., 24
Published: |
Abstract:
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The length - weight relationship and condition factor of Callinectes amicola from Okpoka Creek in
the Niger Delta area of Nigeria was studied for a period of one year. The exponent ‘b’ values for all the sexes
ranged from 2.336 and 2.56 (males), 2.367 and 2.536 (females) and 2.352 and 2.548 (combined sexes)
respectively. Growth generally exhibited a negative allometry in all the sexes as shown by the mean exponents
(b=2.448) for male, female (b=2.451), combined sex (b=2.449). Generally, the regression equations revealed
high correlation in all the sexes as the correlation coefficient (r) values for male (0.951), female (0.971) and
combined sexes (0.961) are very close to r = 1. The monthly K values of the males ranged from 0.0984 and
0.1503 (mean = 0.1214). The estimated K value for both sexes combined was 0.1260. Similarly, estimated K
values for the females ranged from 0.0889 – 0.1524.The overall mean K value for the females was 0.1229. The
minimum K value (0.0984) for the male was observed in February. The female C. amnicola minimum K value
(0.0889) and Kmax (0.1580) values were obtained in November.
Key words: Callinectes amicola, length-weight relationship, condition factor, Okpoka Creek, Nigeria, ,
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Cite this Reference:
J.F.N. Abowei and A.D.I. George, . A Study of the Length-Weight Relationship and Condition Factor of Callinectes amicola (De Rochebrune, 1883) from Okpoka Creek, Niger Delta, Nigeria. International Journal of Animal and Veterinary Advances, (2): Page No: 66-72.
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ISSN (Online): 2041-2908
ISSN (Print): 2041-2894 |
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