When Do Bull Trout Spawn In Montana

Many spawning areas are associated with cold.

When do bull trout spawn in montana. Bull Trout reach sexually maturity in 4 to 5 years. Spawning occurs from May to June depending on the area. They spawn in the fall on the rocky substrate of the shoreline.

The Bull Trout DOES NOT have any black on its dorsal fin. 17102012 Bull trout spawning surveys in the Flathead Basin were completed by FWP between September 24 and October 9. Spawning takes place between late August and early November.

For instance bull trout in Montanas Flathead Lake have been known to migrate up to 155 miles 250 km to spawn. You also want to time your fishing for the best possible river conditions. The period of egg incubation to emergence for bull trout fry may take up to 210 days.

If you have any doubts about whether the fish youve taken is a Bull Trout put it back. No black put it back. Good spawning habitat so migratory bull trout may swim considerable distances to spawn when habitat conditions allow.

19122019 This trout reaches sexual maturity at between four and seven years of age and are known to live as long as 12 years. Bull Trout grow to lengths of 37 inches and weights as heavy as 20 pounds Montana AFS Species Status Account. As a char Bull Trout can be difficult to distinguish from the Brook Trout.

They spawn in the fall after temperatures drop below 48 degrees Fahrenheit in streams with abundant cold unpolluted water clean gravel and cobble substrate and gentle stream slopes. If winter temperatures are cold and freezing levels are low then coastal rivers will be low and clear. Bull trout reach sexual maturity at between four and seven years of age and are known to live as long as 12 years.