The Rainbow trout

The Rainbow trout belongs to the Salmonidae family. On average, it measures 35 to 70 cm and weighs 500 g to 6 kg. In this species, a maximum lifespan of 11 years has been observed. Rainbow trout reproduce naturally from late March to early July. Fertility is about 2000 eggs per kg. Depending on the region, it is fished from March to September.
Rainbow trout have a streamlined, laterally compressed and slender body. It has a small head and a slightly split mouth. Its body is arched at the level of the dorsal fin. It should also be noted that there is an adipose fin common to all Salmonids. Its scales are small and thin. Generally, the entire body is punctuated by small black spots, many on the back and sides, as well as on the dorsal and caudal fins. The back is olive green and the sides are silvery. The color of the belly varies from white to yellowish. Nevertheless, the general coloring of the body varies greatly depending on the age, habitat and physiological stage of the fish. The particularity of rainbow trout lies in the presence, all along the body, of an iridescent longitudinal band, predominantly pink. During the breeding season, the female is generally rounder because of the ovarian volume, while the males appear to be more elongated. They become darker and their colors more vivid.