Lipid nutrition during early development of yellowtail flounder (Limanda ferruginea).

摘要

Yellowtail flounder (Limanda ferruginea) is a candidate species for cold-water aquaculture development in Atlantic Canada. This study is the first examination of the dietary lipid requirements of yellowtail flounder larvae.; Specifically, marine fish require the dietary polyunsaturated fatty acids docosahexaenoic acid (DHA, 22:6n-3), eicosapentaenoic acid (EPA, 20:5n-3) and arachidonic acid (AA, 20:4n-6) for normal growth and development. Consequently, in Chapter Two (Part A) an experiment was designed to study the role of dietary ratios of these fatty acids on the early growth, survival, lipid composition, and pigmentation of yellowtail flounder.; In Chapter Two (Part B) I examined the changes in growth and lipid composition that occurred when larvae of differing nutritional status were fed one diet of enriched Artemia.; In Chapter Three the lipid composition of mal-pigmented (MP) and normally pigmented (NP) newly settled yellowtail flounder were compared in order to elucidate a possible connection between lipids and pigmentation development. (Abstract shortened by UMI.)