In different areas of Russia called the speckled hen, petrohol, spectracom.
It’s a nickname very well, because the body of the trout decorated with red, black and white speckled. Color and brightness depend on water and soil, food and even the time of year; during spawning, the colour is more saturated.
Speak for themselves names such as Rudd (this fish are bright red, like the feathers, fins), Chub (it has a thick head with a wide and flat forehead). But the Beluga, the largest (up to 4 m) commercial fish of the sturgeon family, it got its name by the color of the belly. In the Russian language as the name of a fish, the word Beluga is already known in the XVI–XVII centuries In the same “Story about the Ruff Ershovite” the Beluga is the name of one of the judges. (The phrase “roars like a Beluga” refers not to the fish, and the Beluga whale to the Dolphin.)
Freshwater fishes live in the internal waters, almost not containing salts. The figures on the left depict some commercial fish that live in streams, ponds, lakes and rivers. Continue reading