Abstract: Background and Objective: The reproduction of Chloroscombrus chrysurus was influenced by abiotic and biotic modifications of the environment. The research aimed to explain the stages of Chloroscombrus chrysurus on ovogenesis. Materials and Methods: In the field, captured animals are immediately conditioned with ice. The fish caught were weighed to the nearest gram and dissected. The gonads of each specimen were removed, observed and described then they were fixed by immersion in formaldehyde 10% for histological studies. Results: The macroscopic analysis of the gonads made it possible to establish in the female a scale of sexual maturity which comprises six stages. Considering the evolution of the ovary during the first five stages, it was done in three phases: The formation phase which corresponds to the first two stages, the growth phase which was represented by stages III and IV. The phase of ovigerous females which third phase. The oocytes from the oogonia, following the phenomena of previtellogenesis and vitellogenesis were transformed into the follicle and then the telolecithal egg. Embryonic development took place from this egg. Conclusion: In Chloroscombrus chrysurus female, the gravid stages III to V prove to be the crucial stages during which the accumulation of reserve necessary for embryonic takes place and can used be as farmed fish. PubDate: 21 December, 2023
Open Access journal
