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https://hdl.handle.net/20.500.12348/2549
Observations on gillnet catches of Kariba tilapia, Oreochromis mortimeri from Bumi Basin of Lake Kariba, Zimbabwe
dc.creator | Mhlanga, W. | |
dc.date.accessioned | 2019-01-31T06:56:22Z | |
dc.date.available | 2019-01-31T06:56:22Z | |
dc.date.issued | 1998 | |
dc.identifier | na_2312.pdf | |
dc.identifier.citation | NAGA 21 (1): 57-60 | |
dc.identifier.uri | https://hdl.handle.net/20.500.12348/2549 | |
dc.description.abstract | Gillnet catches of Oreochromis mortimeri (Trewavas) were studied in the Bumi Basin of Lake Kariba in 1988 and 1989. Total length (TL) was positively correlated with standard length (SL). The linear relationship between TL and SL was TL=1.91 + 1.22 SL (r super(2)=0.982). The relationship between SL and weight in g (W) was of the form W = 0.12 SL super(2.67). Maximum standard length (L sub(max)) was 33 cm and asymptotic length (L sub( infinity )) was 34.7 cm. Monthly ratios of male to female varied between 0.6:1 and 13:1. The mean ratio was 57.4% male: 42.6%female. Monthly condition factors varied between 3.19 and 5.11 in males, and between 3.18 and 5.14 in females. Catches were higher in 1989 compared to 1988 and possible reasons for these differences are discussed. | |
dc.format | application/pdf | |
dc.language | En | |
dc.publisher | ICLARM | |
dc.rights | CC BY 4.0 | |
dc.source | NAGA | |
dc.title | Observations on gillnet catches of Kariba tilapia, Oreochromis mortimeri from Bumi Basin of Lake Kariba, Zimbabwe | |
dc.type | Journal Article | |
dcterms.bibliographicCitation | Mhlanga, W. (1998). Observations on gillnet catches of Kariba tilapia, Oreochromis mortimeri from Bumi Basin of Lake Kariba, Zimbabwe. NAGA 21 (1): 57-60 | |
cg.coverage.country | Zimbabwe | |
cg.identifier.worldfish | 2312 | |
cg.subject.agrovoc | fishing nets | |
cg.subject.agrovoc | freshwater | |
cg.subject.agrovoc | tilapia | |
cg.subject.worldfish | fresh water | |
cg.contributor.affiliation | Lake Kariba Fisheries Research Institute | |
cg.identifier.status | Open access | |
cg.description.theme | Sustainable aquaculture | |
worldfish.location.area | Africa |
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Sustainable aquaculture [2702]