SHORT COMMUNICATION: SEASONAL CHANGES IN LENGTH-WEIGHT RELATIONSHIP AND CONDITION FACTOR OF NILE TILAPIA, OREOCHROMIS NILOTICUS (LINNAEUS, 1758) (CICHLIDAE) IN LAKE NAIVASHA, KENYA

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KEYOMBE JAMES LAST; MALALA JOHN O.; WAITHAKA EDNA; LEWO RUTH M.; OBWANGA BENSON OJOWI

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Journal: INTERNATIONAL JOURNAL OF AQUATIC BIOLOGY Year:2017 | Volume:5 | Issue:1 Page(s): 7-11

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Title

SHORT COMMUNICATION: SEASONAL CHANGES IN LENGTH-WEIGHT RELATIONSHIP AND CONDITION FACTOR OF NILE TILAPIA, OREOCHROMIS NILOTICUS (LINNAEUS, 1758) (CICHLIDAE) IN LAKE NAIVASHA, KENYA

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Keywords

ALLOMETRY

CONDITION FACTOR

LENGTH-WEIGHT RELATIONSHIP

OREOCHROMIS NILOTICUS

Abstract

The study compared the LENGTH-WEIGHT RELATIONSHIP and CONDITION FACTOR (K) of Nile tilapia(Oreochromis niloticus) in Lake Naivasha, Kenya, between the wet and dry seasons. Fish sampleswere collected monthly by gill netting from February to December 2015. A total of 372 samples ofO. niloticus were analysed. The b values in the LENGTH-WEIGHT RELATIONSHIPs were observed as 3.077and 3.366 in the wet and dry seasons, respectively. The values of b exhibited positive allometricgrowth which were the important indication that the species was growing faster in weight than length.The K values of the fish ranged 1.18-4.1 during the wet season and 0.8-3.0 during the dry season.All mean monthly K values were found to be greater than 1, the highest being in June (2.33±0.05)and lowest in February (1.31±0.28), an indication of a healthy status and general well-being of the O. niloticus population in Lake Naivasha. The study concluded that seasonal variation has no greatinfluence in the LENGTH-WEIGHT RELATIONSHIP and CONDITION FACTOR of O. niloticus in Lake Naivasha.

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APA: Copy

KEYOMBE, JAMES LAST, MALALA, JOHN O., WAITHAKA, EDNA, LEWO, RUTH M., & OBWANGA, BENSON OJOWI. (2017). SHORT COMMUNICATION: SEASONAL CHANGES IN LENGTH-WEIGHT RELATIONSHIP AND CONDITION FACTOR OF NILE TILAPIA, OREOCHROMIS NILOTICUS (LINNAEUS, 1758) (CICHLIDAE) IN LAKE NAIVASHA, KENYA. INTERNATIONAL JOURNAL OF AQUATIC BIOLOGY, 5(1 ), 7-11. SID. https://sid.ir/paper/713295/en

Vancouver: Copy

KEYOMBE JAMES LAST, MALALA JOHN O., WAITHAKA EDNA, LEWO RUTH M., OBWANGA BENSON OJOWI. SHORT COMMUNICATION: SEASONAL CHANGES IN LENGTH-WEIGHT RELATIONSHIP AND CONDITION FACTOR OF NILE TILAPIA, OREOCHROMIS NILOTICUS (LINNAEUS, 1758) (CICHLIDAE) IN LAKE NAIVASHA, KENYA. INTERNATIONAL JOURNAL OF AQUATIC BIOLOGY[Internet]. 2017;5(1 ):7-11. Available from: https://sid.ir/paper/713295/en

IEEE: Copy

JAMES LAST KEYOMBE, JOHN O. MALALA, EDNA WAITHAKA, RUTH M. LEWO, and BENSON OJOWI OBWANGA, “SHORT COMMUNICATION: SEASONAL CHANGES IN LENGTH-WEIGHT RELATIONSHIP AND CONDITION FACTOR OF NILE TILAPIA, OREOCHROMIS NILOTICUS (LINNAEUS, 1758) (CICHLIDAE) IN LAKE NAIVASHA, KENYA,” INTERNATIONAL JOURNAL OF AQUATIC BIOLOGY, vol. 5, no. 1 , pp. 7–11, 2017, [Online]. Available: https://sid.ir/paper/713295/en

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