Non-Migrant: No. All populations of this species make significant seasonal migrations.
Locally Migrant: Yes. At least some populations of this species make local extended movements (generally less than 200 km) at particular times of the year (e.g., to breeding or wintering grounds, to hibernation sites).
Locally Migrant: Yes. At least some populations of this species make annual migrations of over 200 km.
Anadromous; migrates up to several hundred km upstream to the stream in which they were spawned. Different races differ in the timing of adult migration and spawning. Oregon coastal chinook stocks vary in ocean migration; some stocks migrate north, some migrate south, and one stock has a mixed north and south migration (see Nehlsen et al. 1991). There are two basic behavioral forms, stream-type and ocean-type (see Salo 1991). Stream-type chinnok is typical of Asian populations and of northern populations and headwater tributaries of southern populations in North America; spends one or more years as fry or parr in fresh water before migrating to sea, performs extensive offshore oceanic migrations, returns to natal river in spring or summer, several months prior to spawning; occasionally males mature without ever going to sea. Ocean-type is typical of populations on the North American coast south of 56 degrees north latitude; migrates to sea during first year of life (normally within 3 months of emerging from spawning gravel), spends most of ocean life in coastal waters, return to natal river in fall, a few days or weeks before spawning.