Rainbow Trout

Rainbow Trout

World Record: 48 lbs
Lake Diefenbaker, Saskatchewan
Sept 5 2009
Length: 20-30 inches
Found in: Lakes & Rivers
Cold Waters 17C

Identification

The rainbow trout has an elongated, laterally compressed body with a rounded snout, which becomes extended and the lower jaw turns up in breeding males. The back, upper sides and the top of the head are steel blue, blue-green, and yellowgreen to almost brown. The sides are silvery, white or pale yellow-green to grey, and marked with a pink blush to red band and many small black spots. The underside is silvery, white or grey to yellowish. The dorsal and caudal fins have radiating rows of black spots, while the remaining fins are buff with few spots.

Habitat

The habitat of stream-dwelling rainbow trout is usually small to moderately large, shallow rivers with moderate flow and gravel bottoms. The lake-resident trout are usually found in moderately deep, cool lakes with adequate shallows and vegetation for good food production. For a lake population to be self-sustaining, there must be a gravelly river to which the adults can migrate during the spawning season.

Rainbow trout spawn in the spring immediately after the ice melts. The female digs a nest in the gravel by turning on her side and beating her tail up and down. The eggs usually hatch in approximately 4 – 7 weeks.

Diet

Northern pike lurk at the edge of weed beds and attacks unwary creatures that enter its domain, such as fish, crayfish, frogs, mice, muskrats and young waterfowl. It is an opportunist that can be best described as an omnivorous carnivore, as it feeds on whatever is most readily available.