All species of salmon adapt to some degree to their home streams, making it hard to produce concise data. This table is designed largely to compare the similarities and differences between the species. Pink Oncorhynchus gorbuscha Chum Oncorhynchus keta Chinook Oncorhynchus tsawytscha Season which eggs hatch Spring Spring Spring Spring Spring Length of stay in fresh water 1 year 1-3 years 1 is common Virtually none. Often straight to ocean Little. No particular season.
Data is quite variable.
Some rear to smolt size in estuary. Top of page.