A preliminary assessment of the length-weight relationship and condition factor of Hydrocynus vittatus and Oreochromis niloticus in Lake Kariba, Zimbabwe

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dc.contributor.authorMabika, Nen_US
dc.contributor.authorGwazani, Ren_US
dc.contributor.authorChipumuro, Men_US
dc.contributor.authorZengeya, Ten_US
dc.contributor.authorSaunyama, Len_US
dc.date.accessioned2024-09-24T10:42:10Z
dc.date.available2024-09-24T10:42:10Z
dc.date.issued2024-02
dc.description.abstractBackground: Hydrocynus vittatus and Oreochromis niloticus are two economically important fish species in Zimbabwe. The length-weight relation can be employed to assess the health and well-being of fish so as to assist fish farmers. The objective of the study was to investigate the length-weight relationship and condition factor of these fish species. Methods: Thirty-four fish of each species (Hydrocynus vittatus and Oreochromis niloticus) were collected by seine netting in the Sanyati Basin, Lake Kariba in August 2019. The total length (TL) and standard length (SL) were measured in centimetre (cm), and the body weight (BW) was measured in grams (g). The body weight (BW) was measured using a digital top-loading electronic weighing balance. Results: The value of the exponent b in the LWR for H. vittatus was 2.984, indicating negative allometry (b<3). The exponent value of O. niloticus in the LWR was 3.04 (b>3) implying positive allometry. The r2 values for H. vittatus and O. niloticus were 92.3% and 97.3% respectively, indicating that there was a high degree of positive correlation. The condition factor for both fish species were greater than 1.60 implying good physiological conditions for both fish species. Conclusions: This study provides preliminary information on length-weight parameters of O. niloticus whose data was previously not available in the take.en_US
dc.identifier.affiliationsDepartment of Biological Sciences and Ecology, University of Zimbabwe, Harare, Zimbabween_US
dc.identifier.affiliationsDepartment of Livestock, Wildlife and Fisheries, Great Zimbabwe University, Zimbabween_US
dc.identifier.affiliationsDepartment Mathematics and Computer Science, Great Zimbabwe University, Zimbabween_US
dc.identifier.affiliationsDepartment Mathematics and Computer Science, Great Zimbabwe University, Zimbabween_US
dc.identifier.affiliationsDepartment Mathematics and Computer Science, Great Zimbabwe University, Zimbabween_US
dc.identifier.citationMabika N, Gwazani R, Chipumuro M, Zengeya T, Saunyama L. A preliminary assessment of the length-weight relationship and condition factor of Hydrocynus vittatus and Oreochromis niloticus in Lake Kariba, Zimbabwe. International Journal of Scientific Reports. 2024 Feb; 10(2): 42-46en_US
dc.identifier.issn2454-2156
dc.identifier.issn2454-2164
dc.identifier.placeIndiaen_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/234374
dc.languageenen_US
dc.publisherMedip Academyen_US
dc.relation.issuenumber2en_US
dc.relation.volume10en_US
dc.source.urihttps://doi.org/10.18203/issn.2454-2156.IntJSciRep20240046en_US
dc.subjectIsometric growthen_US
dc.subjectFeeding intensityen_US
dc.subjectBiomassen_US
dc.subjectMorphometric comparisonen_US
dc.titleA preliminary assessment of the length-weight relationship and condition factor of Hydrocynus vittatus and Oreochromis niloticus in Lake Kariba, Zimbabween_US
dc.typeJournal Articleen_US
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