The number of salmon in a particular stock that the Alaska Department of Fish and Game has determined should be allowed to escape the fishery to spawn to achieve the maximum yield for human use. This determination is based on biological information about the fish stock in question. Commercial harvest Harvests of fish that are used for commercial purposes. Cost recovery harvest Harvests of salmon by hatchery operators in specially designated areas to fund the operation of hatcheries and other enhancement activities. Enhancement of runs Hatcheries and other means of artificial propagation to create salmon runs or make existing salmon runs larger.
Enhancement includes remote fish stocking, fertilization of lakes, and other techniques.
The portion of a salmon run that is not harvested and survives to reach the spawning grounds or hatchery. Harvest outlooks are the best available estimates of upcoming harvest levels. Prepared by local biologists, outlooks are based on formal run forecasts, when available. At other times outlooks are based on historical average catches, subjectively adjusted based on recent trends and local knowledge. The number of salmon in a particular stock that should be allowed to spawn to achieve sustainable runs based on biological needs of the stock, as well as social and allocative implications in managing for this level or other relevant considerations.