Length-frequency data collected from fish landings on Lake Naivasha were used to estimate the growth parameters: total mortality (Z), growth performance index (¢'), exploitation rate and recruitment pattern in Oreochromis ...

To verify that increments observed in the otoliths of R. argentea were deposited daily, fish were immersed in tetracycline hydrochloride (TC) of 100 - 600 mg V between 2-24 hours. TC was found to be incorporated within ...