No. Rainbow trout is a cold-water pond-farmed fish of the genus Pacific salmon in the family Salmonidae. Rainbow trout is an important cold-water fish that is widely farmed around the world. It is so named because mature individuals have a brownish-red longitudinal stripe along the lateral line that resembles a rainbow. Native to the northern part of North America and the west coast of the Pacific Ocean, it mainly lives in low-temperature freshwater and has high water quality requirements for aquaculture waters. The rainbow trout is a food fish that has been moved into several countries, but has become an invasive species in some areas.

Appearance

Rainbow trout have a wide, bright red iridescent band of purplish-red and peach along the lateral line of the sexually mature individual, running straight to the base of the caudal fin, which is especially colorful during the breeding season. It looks like a rainbow, hence the name. The body of the fish is fusiform, slightly laterally compressed. There is a blubbery fin with beautiful body color. There is a longitudinal brown-red band on the side of the body, resembling a rainbow. The body is laterally compressed, the mouth is large, slit, end position.

The muzzle is rounded and blunt, and the upper jaw is finely toothed. The dorsal fin is short at the base, and there is a small blubber fin after the dorsal fin. The pectoral fins are medium and slightly pointed at the end. Ventral fin smaller, away from the anal fin. Scales are small and rounded. Dorsum and top of head bluish-green, yellowish-green, and brown, sides of body and belly silvery-white, white, and grayish-white. Small black spots are irregularly distributed on the head, sides of the body, dorsum and fins.