In the late 17th century Peter the great, meaning “to be firmly on the Azov and Black seas”, has a boatload of “Fortress” to explore the shores of the Black sea. Sailors measured the depth and made sketches of the coastline. Thus was made the first Russian map of the Black sea. Although, according to historians, the geography of the Black sea was well known to the ancient Greeks. They laid here the trade routes and built beautiful cities.
The black sea is an inland sea, belonging to the basin of the Atlantic ocean. With the ocean this body of water through the channels sequentially connects the Marmara, Aegean and Mediterranean seas. Over the Atlantic, and originate those cyclones, which bring the black bad weather. Through the narrow Straits hindered the water exchange between the seas and so the tides on the black sea coast is virtually invisible. Only occur under the action of strong winds and wind-effected processes can raise or lower the water level 30 cm On the North-East of the shallow Kerch Strait links the Black sea with the sea of Azov.
The radiant variety of its shades from blue to emerald-blue sea in all languages of the world is called “black”. The sea on the map resemble an oval, stretching from West to East on the 1150 km and from North to South nearly 580 km Severskoe location between the extreme southern point of the Crimea and the Turkish coast, which are separated by only 228 km maximum depth of 2210 m. the sea Continue reading
Two types exist in nature: pond and river. These species have noticeable differences from each other. First, pond carp has darker scales, and secondly, larger rivers, broader and also has a kind of hump, that is, a pronounced transition from the back to the head. Moreover, all States that pond look thicker and movable, produced significantly more offspring, and river a brother on the contrary is cunning, so to talk about fish. By the way, it should be noted that river and much faster growing, and are considered to be stronger. Pond carp is not just a certain fish.
These individuals have different forms and scales. The last species is considered the most beautiful of all. It is covered with scales of Golden hue, tall and long body, a broad fin on the back gray. Has a large caudal fin brownish, and the lower fins are mostly grey, less common purple. Eyes also differ in color Golden and black pupils. It is a bit like carp, but You will immediately see the difference, because on the lips of carp has a small mustache, and the body is longer in contrast all from the same carp.
In his pharynx has pharyngeal teeth, five on each side, katariinankatu carp for grinding the food. If You caught the lighter an individual, then it is a young fish that are not yet fully formed. The young differs in having a more hump back, a little skinny. Continue reading
Body soma is elongated, in front rounded, posterior – laterally flattened, without scales, with soft skin, mucus secreting. Eyes small, located closer to the head. Snout broad, flattened, rounded. There are front and rear nostrils, separated from each other. Mouth wide, lower jaw slightly curled up, as slightly longer than the upper. Teeth soma and resemble brushes are in the sky and jaws. On the upper lip of the fish grows 2 large moustache, extending to end of pectoral fin. Chin soma there are 2 pairs of short whiskers, with whiskers in front three times shorter than the back. The body is very dark on the back, on the sides dark green with spots on the belly light. It is interesting that in large bodies of flowing water, the color is lighter catfish, in ponds with muddy stagnant water is almost black. The fin on the back short, close to head, is over the pectoral fins. Anal fin rather narrow, but long, connected to a rounded tail. In the pectoral fins of the outer beam is converted into a prickle, sometimes with a notch.
Som is growing rapidly, particularly in the southern river deltas. To 1 year in the Delta of the rivers Volga and Ural catfish reaches a length of up to 45 cm and weigh up to 600 grams, to 10 years — 125 cm and 18 kg, respectively. Continue reading