Bony fish. Part two

Salmon are predators with large toothy mouths, mostly passing fish. The Far Eastern reservoirs are especially rich in salmon. Chum salmon, pink salmon, sockeye salmon, and red salmon go to spawn from the ocean into the rivers. Salmon and trout roe in the rivers of the European north. Mainly lake whitefish are valuable salmonids. Among them are the omul from Lake Baikal, the Peipsi whitefish, the Pereslavl "royal" herring — grouse from Lake Baikal. Pleshcheyeva et al. The smallest whitefish are mined in the lakes of the north-west of the country. The entire life of ripuses, lake whitefish, takes place in the water column, even their eggs are floating. These fish are widely used to colonize reservoirs of hydroelectric power plants, where large fluctuations in water levels are fatal for fish breeding or feeding in shallow waters.

The order is carp-like. It mainly includes freshwater fish, among them crucian carp, tench, carp, roach, bream, rapeseed, ide, etc. Of the passing fish, kutum, rybets, roach (Caspian roach), taran (Azov roach) are of commercial importance. Small representatives of the order serve as food for many commercial species, such as whitefish, whitefish, minnow, char. The largest of the cyprinid fish, the catfish, which lives up to 100 years or more, reaches a mass of 300-400 kg.

The pike squad. The representative pike is a large predator, an inhabitant of rivers, lakes and ponds. Pike are voracious and grow rapidly, reaching a weight of 1 kg by the age of three.

The order is perch-like, or spiny-feathered. It includes marine and freshwater fish of various shapes and lifestyles. Perch, ruff, and walleye are more famous than others. Walleye fry were released in many reservoirs, where they became commercial fish. Numerous species of gobies are widely known among the marine spiny-finned.

The order is cod-like, or soft-feathered. Distinctive features are three dorsal fins with soft rays and a small chin tendril. Marine species — cod, navaga, haddock. In fresh waters, one species is burbot, a cold—loving fish that spawns in rivers in winter.


The brush-feathered subclass

Brush-finned fish were known from bone remains only to paleontologists. It was believed that these fish became extinct about 50 million years ago. However, in 1939, an unknown fish was caught in the Indian Ocean off the southern tip of Africa. The English ichthyologist Smith established that this fish belongs to a subclass of carpetfishes. The fish was named latimeria. Her discovery has been a zoological sensation these days. The most famous porn site Noodle Magazine - Uncensored porn.