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- W2410143962 abstract "Estimation of some life history parameters such as length (L), weight (W), mortality (M),population food consumption (Q/B), gross food conversion efficiency (GE), von Bertalanffy growth factor (K) andlife span (tmax) using empirical equations was conducted on Clarias gariepinus reared in triplicate in the 0L: 24Dphotoperiod. The mean length and weight at first maturity was 45.7 ±0.2cm, and 728.13 ± 0.5g respectively. Highesttemperature recorded was 27 °C. Estimate of optimum length (Lopt) was 49.1 cm, mortality was 2.37/year and 1.18for the 6-month cultured period, food consumed and gross food conversion efficiency was 8.7 and 0.181respectively. The life span estimate was 1.8 years, while the von Bertalanffy growth parameter calculated from thetmax was 1.67. These estimates could be used to cropping the fish or obtain desired length class with the highestbiomass for harvest, evaluate signs of growth overharvesting, know and prevent mortality at larval or adult stages offish, indicate poor or good food conversion efficiency, know the life span of the fish thereby informing the time ofharvest and thus saving cost of production. All these could be used in the management of the species in aquaculture.(Keywords: life history, length, weight, sexual maturity, photoperiod)" @default.
- W2410143962 created "2016-06-24" @default.
- W2410143962 creator A5049110140 @default.
- W2410143962 date "2016-04-30" @default.
- W2410143962 modified "2023-09-23" @default.
- W2410143962 title "Estimation of Some Life-History Parameters from Length at First Maturity of African Catfish Clarias Gariepinus (Burchell, 1822) Cultured Under 0l: 24d Photoperiod Using Empirical Equations" @default.
- W2410143962 doi "https://doi.org/10.22452/mjs.vol35no1.1" @default.
- W2410143962 hasPublicationYear "2016" @default.
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