Koussovi, GuillaumeAdjahouinou, Clément DogbèNiass, Farokh2023-04-262023-04-262021-06Koussovi, G., Adjahouinou, C. D., Niass, F., Diédhiou, P. M., Bonou, C. A., & Montchowui, E. (2021). Reproduction and embryonic development in the African freshwater prawn Macrobrachium macrobrachion (Herklots, 1851). International Journal of Aquatic Biology, 9(3), 148-158.doi.org/10.22034/ijab.v9i3.1079https://datad.aau.org/handle/123456789/1613International Journal of Aquatic biology Vol. 9 No. 3 (2021): JuneThe current study aimed to determine parameters and conditions for successful reproduction of Macrobrachium macrobrachion (Herklots, 1851) in a controlled medium and describing its embryonic development. A total of 122 adult specimens were collected from the delta of Ouémé River and stored in polyethylene tanks with 1:2 male-female sex ratio. This broodstock was fed on pelleted food (Biomar Efico) once a day. For the embryogeny monitoring, eggs were sampled each hour through the first two days after spawning and then every 2 hours till hatching. Spawning happened at a mean temperature, dissolved oxygen concentration and pH of 27.80±0.56°C, 5.83±0.45 mg/L and 7.41±0.34, respectively. The eggs incubation meantime was 12±1 days with nine main embryonic development stages. Hatching lasted on the average 21.00±1.94 h and led to larvae with a mean size of 2.30±0.90 mm. Mean fecundity was 13062.4±5489.93 eggs and 14715.2±6108 eggs, respectively for the first and second seasons with a highly significant difference between them. The best hatching rates were obtained with salinities equal to 2 and 4"°. The results constitute the first database for larval breeding of M. macrobrachion speciesenFood proteinLarvae CrustaceanEmbrayonic developmemtAquacultureUniversité Cheikh Anta DiopAGRISANSénégalArticle