In this monograph, experts provide current knowledge on nutrient requirements and effects of deficiencies on commercially important aquaculture species. The information presented affects the development of more cost-effective feeds, the increased use of and market demand for agricultural and aqua-cultural products and by-products, and the potential for decreased pollution. This monograph is useful to students, nutritionists, food technologists, feed formulators and manufacturers, oilseed producers, and aquaculturists.