Bull Trout Life Cycle

See the preceding discus- sion of salmon life cycle and the following discussion of habitat needs BIOLOGICAL DATA FOR SPECIES COVERED BY THE HCP - D.
Bull trout life cycle. Become an expert on bull trout. The maximum recorded lifespan for a rainbow trout is 11 years. Male and female bull trout on a redd September 2008.
When the bull trout matures it travels around in the streams and rivers close its nesting grounds. The gestation period is about 225 days. The gestation periods is is 270-280 days.
What is the life cycle of a bull trout. Bull trout can live up to 20 years. Learn about where they live their life cycle and.
In Flathead Lake where they achieve trophy sizes of up to 25 pounds the Bull Trout life cycle has been studied extensively. The life cycle and freshwater habitat of bull trout are similar to that of salmon genus Oncorhynchus. The life cycle of the bull trout can be separated into five periods of development Moyle and Cech 2000.
Bull Trout can be identified by the lack of black markings on their fins their pale greyishgreen color and the white slash on their fins. They can live for a very long time sometimes upwards of 20 years. SALMONIDS AND THE RIPARIAN ECOSYSTEM.
Life cycle Rainbow trout including steelhead forms generally spawn in early to late spring January to June in the Northern Hemisphere and September to November in the Southern Hemisphere when water temperatures reach at least 42 to 44 F 6 to 7 C. They spawn in the fall after temperatures drop below 48 degrees Fahrenheit in streams with abundant cold unpolluted water clean gravel and. Some bull trout live as adults in rivers like the Blackfoot River in western Montana fluvial lifestyle.