Boganid char (Salvelinus boganidae)
In 1979 it was found also in Chukotka — in the famous and mysterious Elgygytgyn Lake. Later the species was also found in the Baranie Lake in Chukotka.
Outwardly, the Boganidian char is somewhat similar to the Taranetz’s char: the general tone of the body is from silver-gray to olive, with large pink spots on the sides. The spawning colors of the lake chars are often dim, consisting of gray, olive and pink tones; the belly and the caudal peduncle may be brown-red. By the males, the kype is appearing on the lower jaw.
In the lakes of the Taimyr Peninsula reaches the length of 70 cm, weight 2.7 kg, age 16 years. In the lake Elgygytgyn the maximum length is 1.2 m, weight 15-16 kg, age 31 years. The feeding is observed only in the lakes. From the lakes of the Taimyr Peninsula it enters the rivers for spawning; in Chukotka, it spawns in the lakes. The young fish from the Lake Elgygytgyn in the first years of life enter the inflowing brooks. This char inhabits the entire lake to the depth of at least 100 meters. In the lakes of Taimyr it is the euriphage with predominance of fish diet, in Chukotka in the Lake Elgygytgyn it is active predator. The growth is extremely variable and generally slow. The sizes of coeval fish may vary in length by 1.5-3.2 times, by weight – by 5-45 times. Two groups of specimens are present in the population: fast-growing, eating long-fin char, and slow-growing, consuming mainly small-mouth char. The fecundity varies widely – from 1,150 to 11,800 eggs and increases with the size of the fish.
The Boganid char of Chukotka is listed in the Red Book of the North-East of Russia.