Species Profiles: Life Histories and Environmental Requirements of Coastal Fishes and Invertebrates (Pacific Northwest) - Chinook Salmon

摘要

Species profiles are literature summaries of the taxonomy, morphology, range, life history, and environmental requirements of coastal aquatic species. They are prepared to assist in environmental impact assessment. The chinook salmon (Oncorhynchus tshawytscha), which make up 9% to 13% of the commercial salmon catch, are the most highly prized and represent the most dollar value of the Pacific salmon. They are also a highly prized sportfish, reaching weights of 8.2 to 9.1 kg (18 to 20 lb) or more during their fourth year. They are anadromous fish that spend 1 year to 18 months in freshwater and then migrate to saltwater.