Habitat:
Rainbow trout are primarily a freshwater fish, although sea-run populations, often known as steelhead, exist in some areas. It is unclear whether this migration to sea water is genetic or simply opportunistic, but it appears that any population of rainbow trout is capable of migrating to or surviving in the sea if the need arises.
Well-oxygenated, clean fresh water, with a temperature of around 55 °F is preferred, although a range from 15 °F to 70 °F is tolerated. Rainbow trout tend to thrive better in lakes than in streams or rivers, although large fish are often present in remote headwaters. |