Growth parameters and total mortality in Oreochromis niloticus (Linnaeus) from Nyanza Gulf, Lake Victoria
Getabu, A. (1992). Growth parameters and total mortality in Oreochromis niloticus (Linnaeus) from Nyanza Gulf, Lake Victoria. Hydrobiologia 232(1): 91-97. https://dx.doi.org/10.1007/BF00014617
In: Hydrobiologia. Springer: The Hague. ISSN 0018-8158; e-ISSN 1573-5117, more
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| Keywords |
Oreochromis niloticus (Linnaeus, 1758) [WoRMS]
Fresh water |
| Abstract |
Length-frequency data collected from fish landings in the Kenya waters of Lake Victoria were used to estimate the growth parameters, total mortality rate and growth performance index in Oreochromis niloticus. The asymptotic length, (Linfinite) and the ratio of the total mortality rate (Z) to the growth constant (K), were estimated to be 64.6 cm and 3.219 respectively. K was 0.254y-1, Z was 0.818 y-1 and the growth performance index Phi' = Log10K + 2 log10 Linfinite = 3.025, which is rather high as compared to other tilapia populations in natural waters. |
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