ABSTRACT To improve the ecological resilience of local aquatic ecosystems by diversifying fish resources, a study was carried out from March to May 2024 in the bimodal humid forest zone of South Cameroon. For this purpose, a survey of fish farmers was carried out to collect viable data on the fish species farmed in the area and their ecological features. The specificity of the common carp motivated its choice for this study. Therefore, 110 Cyprinus carpio fingerlings, weighing 4.4 ± 0.2 g and with an average total length of 6.03 ± 0.1 cm, were purchased from the CIG AIO (Groupement d'Initiative Commune Aquaculture Intégrée de l'Ouest) farm in Batié (West Cameroon) and conveyed to South Cameroon using a polyethylene oxygen bag. After acclimation, fingerlings were randomly distributed in triplicate in the Fastangs and Hapas fish tanks at densities of 18 individuals/m3. Fish growth and water physicochemical quality variables were monitored weekly throughout the experiment. The Hapas recorded significantly (p < 0.05) higher conductivity values (127.6 ± 6.4 μS/cm). The survival rate was 95.5 % in Fastank and 95.0 % in Hapas. The highest values of average daily weight gain 0.39±0.22 g/d, and specific growth rate (14.33±2.144 %/d) were observed in Hapas, with the lowest in Fastank. Regardless of the infrastructure, the condition factor (K) was greater than 1, indicating fish overweight. The common carp has demonstrated good acclimation in the study area. We therefore recommend that its inclusion in pisciculture in the bimodal humid forest zone of Cameroon is a necessity. Keywords: Acclimation, Common Carp, Hapa, Fastank, Fish Farming, Humid Forest Zone
Donhachi et al. (Fri,) studied this question.
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