Scope for Metabolism and Growth of Sockeye Salmon, Oncorhynchus nerka, and Some Related Energetics

Abstract

The extent of metabolic and feeding requirements for fingerling sockeye salmon (Oncorhynchus nerka) are compared over the tolerable range of temperature. Scope for growth, derived from the difference between maximum and maintenance rations, is shown to relate to temperature in a manner similar to that for maximum growth rate. Metabolic scope is compared with scope for growth, supporting the general concept of scope for activity developed by Fry (1947).