Live Feeds in Marine Aquaculture
By Josianne Stottrup
The past two decades have witnessed a dramatic expansion in the culture of marine finfish and crustaceans. Marine larviculture without live feed, or crustacean cultures without microalgae, are rarities in commercial aquaculture. The development of commercial formulated feeds remains today’s upcoming challenge. In the meantime, the industry
continues the struggle to produce stable quantities of high-quality live feeds. The different species used in marine aquaculture differ in their biology and culture requirements, providing ample challenges for the novice and requiring expertise in a commercial enterprise.
This book includes information on the biology and culture of copepods as well as of the better-known traditional live feeds such as rotifers and Artemia. Enrichment techniques for rotifers and Artemia have greatly improved their nutritional value for marine fish species and have contributed to the expansion of the industry. Nutritional defects, however, are still evident in some species and in other cases subtle differences such as decreased tolerance to low temperatures observed during the juvenile stages in marine fish are attributed to poor nutritional diets during the larval stages. With the increasing emphasis on fish welfare and the need to produce high quality fish both for the aquaculture industry and for stocking purposes, larval nutrition will continue to be a main focus area for research within marine aquaculture.