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

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 th...

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Bibliographic Details
Published in:Aquaculture
Main Authors: Gisbert, E., Williot, P., Castello Orvay, F.
Other Authors: UNIVERSITE DE BARCELONE ESP, CEMAGREF BORDEAUX RABX
Format: Article in Journal/Newspaper
Language:English
Published: 2000
Subjects:
ACIPENSER BAERI
LARVE
MORTALITE
CROISSANCE BIOLOGIQUE
TAILLE
OEUF
LARVAE
MORTALITY
PRUNING
EGGS
Siberian sturgeon
Online Access:https://irsteadoc.irstea.fr/cemoa/PUB00008262
Description
Summary: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.

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