the need to find alternatives to the present aquatic feed resources is urgent while aquaculture production shows steady and rapid growth global fish catches are stagnating or even slightly decreasing the world production of both fish meal and fish oil have according to the international fishmeal and fish oil organisation iffo statistics slipped remarkably from the record levels years ago increasing demand of fish meal and particularly fish oil rich in omega fatty acids for human use has led to increasing prices and a reduced availability for the aquaculture sector