Length-weight Relationship and Condition Factor of <i>Protopterus</i> <i>annectens</i> in River Rima Sokoto, Nigeria

Hassan Faruk Maradun; Sani Shinkafi Nasiru; Mubarak Ahmad; Lawal Ibrahim Kasim

doi:7080278

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Length-weight Relationship and Condition Factor of Protopterus annectens in River Rima Sokoto, Nigeria

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Volume 6, 2019
Issue 2 (June)

Pages: 19-22 | Vol. 6, No. 2, June 2019 | Follow on

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Authors

[1]

Hassan Faruk Maradun, Aquaculture and Biotechnology Programme, National Institute for Freshwater Fisheries Research, New Bussa, Nigeria.

[2]

Sani Shinkafi Nasiru, Natinal Agricultural Extension and Research Liaison Services, ABU Zaria, Nigeria.

[3]

Mubarak Ahmad, Department of Fisheries Technology, Hassan Usman Katsina Polytechnic, Katsina, Nigeria.

[4]

Lawal Ibrahim Kasim, Department of Agricultural Education, Federal College of Education (Technical) Bichi, Kano, Nigeria.

Abstract

Length-weight relationship of Protopterus annectens (Owen) in River Rima Sokoto Nigeria was conducted from August to October, 2007. A total of 80 fish samples of Protopterus annectens were used for the experiment and the samples were obtained from River Rima at Kwalkwalawa fish landing site along the main campus of Usmanu Danfodiyo University Sokoto. The samples were collected weekly from the fishermen from August to October, 2007 and taken to laboratory, examined fresh, while those that could not be treated immediately were preserved in a freezer until the next day. The total length of the fih sssamples in the experiment ranged from 21.8cm to 43.1cm with a mean value of 28.27±4.00 and weigh between 73.2g and 337.4g with a corresponding mean value of 135.46±44.89. The results obtained showed that the growth pattern of the fish was negatively allometric with b value of 1.5793. The condition factor (K) of the fish ranged from 0.35 to 0.95 with mean value of 0.62±0.16. There was strong correlation between the length and weight of the fish. The mean condition factor (K) of the fish was 0.62±0.16, an indication that the fish was in good condition.

Keywords

P. annectens, Length-weight Relationship, Condition Factor, Allometric Growth

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