Nutritional requirements and feeding of selected coolwater fishes: A review

A review was made of published and unpublished studies on nutritional requirements, diets, and feeding of selected coolwater species of fishes: yellow perch (Perca flavescens), European perch (P. fluviatilis), walleye (Stizostedion vitreum), smallmouth bass (Micropterus dolomieui), northern pike (Esox lucius), muskellunge (E. masquinongy), and the northern pike x muskellunge hybrid. The published information on nutritional requirements was meager, including only preliminary studies of iodine and vitamin A. Most of the results of the feeding trials were unpublished and lacked experimental control so that the effect of diet was not always clearly demonstrated; however, the results were tabulated and summarized. Results indicated that considerable research is needed. The compositions of diets were given when available.