Influence of egg size on growth and survival of early stages of Siberian sturgeon (Acipenser baeri) under small scale hatchery conditions

• Published in: Aquaculture
• Main Authors: Gisbert, E., Williot, Patrick, Castello Orvay, F.
• Other Authors: UNIVERSITE DE BARCELONE ESP, Partenaires IRSTEA, Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Ressources aquatiques continentales (UR RABX), Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2000
• Subjects: CEMAGREF; RABX; [SDE]Environmental Sciences; Siberian sturgeon
• Online Access: https://hal.inrae.fr/hal-02579173; https://doi.org/10.1016/S0044-8486(99)00287-2

[Departement_IRSTEA]GMA [TR1_IRSTEA]12 - MILEAU / REPIGE International audience A study was conducted to determine the relationships between egg and newly hatched larvae sizes and growth and survival of Siberian sturgeon (Acipenser baeri) during early stages of development. Eggs (mean size 2.8 - 4.1 mm) were obtained from 20 cultured 13-14 years old females. Mortality during the endogenous feeding phase were less than 3.6% and occured among morphologically deformed fish. First feeding age (9-11 days post-hatch) correlated significantly with egg and newly hatched larvae size (P0.05). We conclude that under generally favourable rearing conditions, egg size has no direct implications for larval survival of Siberian sturgeon.