Effects of lipid emulsions and temperature on the hatchery performance of Chilean scallop Argopecten purpuratus (Lamarck 1819) larvae

Abstract

The main constraint for scaling up production of scallop Argopecten purpuratus is the lack of informa- tion on the nutritional requirements and feeding regimes in the early stages. Research is currently focused on the development and use of enriched microalgal diets orarti¢cial diets for juvenile and adult bivalves. The e¡ect of diet fatty acids on larval and juvenile stages has recently been studied by manipulating the fatty acid composition by lipid supplementation of the diet (Coutteau, Caers, Malle, Moore, Manzi & Sorgeloos 1994; Caers, Coutteau, Lombeida & Sorgeloos1998), and Coutteau, Castell, Ackman & Sorgeloos (1996b) have demonstrated the up take and assimilation of lipide mulsions by larval and juvenile stages of several bivalve species through fattyacid analysis of the animal and their diets