Crab black sea: the size, what it eats, description

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2018-10-24 17:00:38

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There are ten thousand species of crabs (decapod), and twenty species of them inhabit in the Black sea. They have a pretty decent size, unusual shape and habits. Most of them dwell in shallow coastal areas, hiding in the algae. Let's look at what types of crabs found in the Black sea.

Stone crab

Stone crab-the biggest crab of the black sea. He prefers to dwell in areas where deep. Of course, it can also be found near the shore, but only in desolate and deserted places. Black sea crab, the size of which can reach nine to ten inches, it feeds on carrion, like other varieties, it is itself strong and aggressive, so may at any time be agile and fast predator. Ambush crabs can watch small fish, worms, snails. His claws are very strong, he snaps the shells of mollusks and hermit crabs, like seeds.

Crab black sea has a special type of muscle. They are at the molecular level are quite different from the muscles of man and animal. Interesting is the fact that the color of the carapace of the crab is always the same color stones, surrounded by which he lives. Typically, this is a red-brown color, but the stone crabs live among yellow Sandstone, are very light. They guard their refuge in the rocks, as well as contiguous territory from other creatures. Females carrying eggs under the abdomen. At one time they lay eggs 130,000.

The habitat of this species is very large. Stone crabs are not only found in the Black sea, but also in the Mediterranean, on the Atlantic coast. Until the eighties of the twentieth century its numbers were quite impressive. This kind was even considered as industrial. Now its population has decreased significantly, it moved into the category of endangered species.crab black sea

Nevertheless, people are Amateur fishing. Day stone crabs are found at depths, and at night come into the shallows. That is where they are caught, blinding light of the lanterns. The number of stone crab has significantly decreased due to the deterioration of habitat and uncontrolled fishing, because he has good taste.

Hairy crabs

The Hairy crab black sea is very similar to the stone, only its size in half. And the armor a dark purple top is covered with a thick layer of yellow setae-hairs. The crab prefers to dwell in the black sea near the shore under rocks. His diet is not very different from other crabs. He is a danger to gastropods, since it splits their sturdy shell like a walnut.

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Marble crab

The marble Shell of the crab can be dyed from dark brown to blue-green, it is dotted with a large number of light strips that resemble marble. Because of the dark color and long limbs it is sometimes called a spider crab. This is the only crab of black sea, which runs out of the water and travels through the coastal cliffs and rocks.crabs of the black sea

At Night they can climb over the rocks to a height of five meters, and on gentle slopes to get away for five or ten yards from the water. But only sensing danger, they automatically run and hide in the nearest hole or thrown into the water.

The black sea crabs eat? In addition to algae, they eat the remains of their fellows, and various other organics. They do not disdain even the scraps from the human table. Marble crabs are also few, and therefore belong to endangered species.

Herbal or Mediterranean crab

Herbal crab black sea also lives in shallow water, but prefers a rich herbaceous undergrowth, but may live among the rocks. His green shell reaches eight centimeters. Meeting with a predator, it is not particularly relies on its claws, and instantly runs away. But he can run very quickly, though, and sideways. Its speed reaches up to one meter per second.

Purple crab, or vodalus

Crabs Black sea is very interesting. Among them there is one more remarkable crab Bogolub. It is quite slow, it can be found not only in shallow waters but also at depths up to fifteen meters. Purple crab loves privacy. It can burrow in the sand for weeks to be there without air and food.

Crab-water beetles

Crab-water – another fan to burrow into the ground. It is small in size, but his hind legs are a little squished, like a blade. With their help, he throws the sand. In addition, these kind of fins crabs successfully used in the process of swimming.the black sea eat crabs

Note that this is the only species that can swim. All the other crabs of the Black sea do not know how.

Blue crab

Blue crab is the most rare species of sandy soils. He appeared in the waters of the Black sea in the sixties of the twentieth century. And he arrived from the Mediterranean. He brought him to ballast water ships of the US East coast. However, the Black sea was too cold for them. The young crab can survive at these temperatures, and therefore it occurs very rarely.

Crab-invisible

Crab-invisible - amazing instance. It is unique in thatit is almost impossible to detect among the seaweed. Lean and long-legged creation – a true master of disguise.black crab the size

He placed on his shell tiny clumps of algae and wanders unnoticed.

Crab-pea

There is a very small crab-pea. As a rule, he lives among mussels, and sometimes even settles inside the shell from a living mollusk. These crabs can be found in shallow water in the rocks, only to see them is extremely difficult because the adult is placed on desyatiletnij coin.

Instead of an epilogue

The Black sea has become home to over twenty species of crabs in those places where the shore is rocky right at the water's edge begin the thickets of algae. In such places inhabited by many residents of the underwater world, including crabs. They chose to themselves and sandbanks.types of crabs

And the small members can be detected only if you take a bunch of seaweed and rinse them in the basin, only then show themselves crab-pea – the smallest representative of the family and the great the master of disguise.


Article in other languages:

BE: https://tostpost.com/be/nav-ny-gramadstva/15266-krab-charnamorsk-pamery-chym-s-lkuecca-ap-sanne.html

DE: https://tostpost.com/de/news-und-gesellschaft/15145-krabbe-schwarzmeer-ma-e-was-isst-beschreibung.html

ES: https://tostpost.com/es/noticias-y-sociedad/15117-el-cangrejo-del-mar-negro-dimensiones-que-come-la-descripci-n-de.html

KK: https://tostpost.com/kk/zha-aly-tar-o-am/15312-krab-ara-te-z-m-lsher-nemen-tama-tanady-sipattamasy.html

PL: https://tostpost.com/pl/aktualno-ci-i-spo-ecze-stwo/15762-krab-black-sea-wymiary-ni-ywi-opis.html

PT: https://tostpost.com/pt/not-cias-e-sociedade/15627-caranguejo-do-mar-negro-dimens-es-que-se-alimenta-descri-o.html

TR: https://tostpost.com/tr/haber-ve-toplum/15299-yenge-karadeniz-boyutlar-ne-yiyor-a-klama.html

UK: https://tostpost.com/uk/novini-ta-susp-l-stvo/15475-krab-chornomors-kiy-rozm-ri-chim-harchu-t-sya-opis.html






Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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