Brook Trout Life Cycle

Brook Trout Salvelinus fontinalis- In the last three months of the year mature brook trout aged 2 to 5 years make their way to suitable spawning locatio.

Brook trout life cycle. This along with sharp saw-like teeth helps in battles with other males as they jostle for breeding position. In these waters brook trout are stocked at smaller sizes then they grow for a year. In late summer and early fall as the length of the day begins to shorten the Brook Trout begin to migrate out of the lakes and up the larger streams into the smaller headwater steams.

It is during a brook trouts. The male fertilizes the eggs and then the female covers them with gravel. In ideal conditions brown trout may live for anything from eight to twelve years becoming sexually mature in their fourth year.

Like sugar maple leaves the fins and bellies of male brook trout turn orange in fall. In this area they rarely grow to be larger 12 and most are considerably smaller than that. By the end of their first summer juvenile brook trout are typically about three to four inches 7 to 10 centimeters long.

Males develop an upward hook in the lower jaw as they age called a kype. The trout life cycle resembles that of brown trout and Chinook salmon. The male fertilises them with milt sperm.

Other populations have anadromous life cycles and travel to the ocean for their adult life returning to freshwater to spawn. After one year they are considered adults and depending on their environment will be able to breed within ten years. 2014-09-24 The Life Cycle of a Brook Trout.

Brook trout spawn in the fall and hatching occurs in January. This is the stage that we will release into a stream here in Fairfax Vermont. Ideal spawning grounds for brook trout.