抄録
The rearing of early life stages is often the most difficult aspect of fish cultivation. Lack of information on ecophysiological requirements for development and growth hinders the design of appropriate rearing systems and feeding protocols. Larvae are often adapted to specific temperature, salinity and oxygen regimes. Such environmental data from natural habitats can provide insight into optimal rearing conditions but findings may be counter intuitive. The dependence of most marine larvae on live prey also presents difficulties in larval rearing. Biochemical and physiological studies are fundamental to the development of weaning diets for larvae. Data on ontogenetic changes in larval feeding and physiological responses to environmental parameters are especially important for cultivating fish in high density closed systems. Appropriate or optimum rearing conditions can be evaluated with the use of condition measures developed for assessing the status of wild populations of fish larvae and juvenile fishes.
