Rainbow Trout Reproduction Facts

Another form of rainbow the Kamloops or Kootenay trout of Idaho may exceed 136 kg 30 pounds.

Rainbow trout reproduction facts. Young rainbow trout often are eaten by a variety of piscivorous fish-eating fishes such as sculpins smallmouth bass and larger trout. Maturation begins as early as one year with average survival of three to four years. They will also eat fish.

The eggs develop over the winter at a slow rate so that they spawn in time for early spring. Females dig a small nest known as a redd in the gravel of a stream. Spawning season for rainbow trou.

Rainbow trout are carnivores that eat insects crustaceans and small fish. Trout begin spawning at the age of 3 or 4. As the redd is completed she and a male will release the eggs and milt into the nest and fertilisation occurs.

Rainbow Trout typically spawn in the spring and early summer seeking out stream riffles downstream from pools lake inlet or outlet streams or main river channels and tributaries. Steelhead and rainbow trout are solitary fish leaving the group of juveniles once they have hatched from eggs. Rainbow trout may weigh about 28 kg 6 pounds steelhead and rainbows in large lakes from about 45 to 25 kg 10 to 55 pounds.

A good flow of clean well-oxygenated water is necessary for successful egg development. Maximum known longevity is 11 years but 7 year olds are typically the oldest in most populations. To build this nest called a red the female turns her body to the side and flaps her tail creating a depression in the gravel.

The steelhead often referred to as steelhead trout is a. The largest trout tend to get the best habitat. Once the nest is ready a male moves in to court her showing off by shaking his body.