This proceedings volume includes selected papers presented at the international symposium `Live Food Organisms in Marine Larviculture' held in Nagasaki, Japan, September 1-4 1996. This international symposium focused on live food organisms for the larval rearing of marine animals. Recent achievements in the fundamental biology (such as physiology, ecology, taxonomy, life cycle and nutrition) of live planktonic animals used as feed in aquaculture were combined with recent technological advances on larval rearing methods. This volume also provides future directions for the application of basic science to the rearing of aquatic animals.