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Mohamed Daoudi
Laboratory of Sciences and Technics of Animal Production (LSTAP), Abdelhamid Ibn Badis University, National road N 11, Kharouba, Mostaganem, 27000, Algeria Department of Marine Science and Aquaculture, Abdelhamid Ibn Badis University, National road N
Agriculture, Biological Sciences & Forestry

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Growth of African Catfish (Clarias gariepinus) in Illizi South-East Algeria Ibrahim Elkhalil Behmene; Benabdallah Bachir Bouiadjra; Mohamed Daoudi; Abdelkader Homrani
Journal of Aquaculture and Fish Health Vol. 10 No. 3 (2021): JAFH Vol. 10 No. 3 September 2021
Publisher : Department of Aquaculture

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jafh.v10i3.24439

Abstract

These observations are intended to provide information on the growth of the African catfish (Clarias gariepinus) living in the Oued Takhamalte-Illizi South-East Algerian. The basic data are the frequencies of the fish sizes resulting from the experimental fisheries carried out in October 2019 in Oued Takhamalte South-East of Algeria. The ELEFAN I program incorporated into FiSAT II software was used. The Powell-Wetherall method provides an L∞ of the order of 53.84 cm and a Z/K of 3.254 with a correlation coefficient R = - 0.944. This asymptotic length is greater than the maximum observed value (Lmax = 50 cm) and the Taylor approximation (L max/0.95 = 52.63 cm). The corresponding K value (0.28/year) seems the most suitable for the growth of a species, for this we opted for the parameters obtained by the sub-program « area of equal responses» of the program ELEFAN I (L∞ = 53 cm and K = 0.28/year) for the continuation of our study. The reduced gap test proves that there is a significant difference between the observed slope (b = 2.41) and the theoretical slope (P = 3), which makes it possible to affirm that the height-weight relationship in both sexes of C. gariepinus shows minor allometry, meaning that the weight grows slower than the cube of length.
Co-Authors Abdelkader Homrani Benabdallah Bachir Bouiadjra Ibrahim Elkhalil Behmene