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Abstract
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Article Information:
The Condition Factor, Length – Weight Relationship and Abundance of Ilisha africana (Block, 1795) from Nkoro River Niger Delta, Nigeria
J.F.N. Abowei
Corresponding Author: Abowei Jasper
Submitted: 2009 October, 09
Accepted: 2009 November, 02
Published: 2010 January, 10 |
Abstract:
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The condition factor, length-weight relationship and abundance of Ilisha africana from Nkoro River in the Niger Delta area of Nigeria was studied for a period of one year (January-December 2008). From a sample size of 113 specimens, K value was 0.999 and the exponential equation was Wt = 0.05998 (TL)2.719, indicating an isometric growth pattern. The highest catch w as recorded in February (1.61), followed by March (1.00), January (0.90), December (0.60) and June (0.10). April, May, July, August, September, October and
November recorded no catch during the study. The highest condition factor value (1.58) was recorded in February and the low est (0.00) in Septem ber. The highest catch per unit effort (1.13) was recorded in stations 2 and 4, followed by station 1 (1.12) and station 3 (0.72 each). Ilisha africana in Nkoro river is in a stable environment and w as more abundant in the dry season months of February, March, January and December.
Key words: Abundance, condition factor, Ilisha africana, length-weight relationship, Nkoro River, Nigeria,
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Cite this Reference:
J.F.N. Abowei, . The Condition Factor, Length – Weight Relationship and Abundance of Ilisha africana (Block, 1795) from Nkoro River Niger Delta, Nigeria. Advance Journal of Food Science and Technology, (1): Page No: 6-11.
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ISSN (Online): 2042-4876
ISSN (Print): 2042-4868 |
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