An Overview of Alaska Lake-Rearing Salmon Enhancement Strategy: Nutrient Enrichment and Juvenile Stocking

Abstract

Among the fundamental factors limiting the productive (rearing area) capacity of salmon nursery lakes is the quantity of nutrients needed for protoplasmic growth. Other essential factors include light and heat; however, without nutrients primary production is limited, which in turn, regulates Zooplankton production. In addition, differences in the capacity of a lake to produce food (i.e. Zooplankton) results in distinctive capacities of a lake to support planktivores such as juvenile sockeye salmon (Oncorhynchus nerka).