Uglovaty shrimp: description, interesting facts, important for humans

When Buying in a store of frozen shrimp or ordering from them the signature dish at the restaurant, we are unlikely to reflect how they live and what are these little creatures. And because each view is unique. For example, pohvala shrimp breaking records for the survival and increase the population. Its meat is to man most useful, the most tender and delicious. Therefore, catch these crustaceans on a gigantic scale. However, the number uglovaty shrimp is not reduced. On the contrary, their population is slowly growing, so that even removed the restriction on their catch. We offer you to familiarize yourself with the features of these amazing creatures who have adapted well to live in such a bleak world for them.

Habitat

Uglovaty shrimp can exist only in cool waters, where the temperature is not below of -0.1 °C and not higher than a 1.7 °C (according to others from a 1.7 °C and +3.5 °C. the Optimal conditions for these molluscs found in the sea of Okhotsk, where there is very high concentration. Uglovaty shrimp due to this is often called Okhotsk. In addition, a lot of them in the Bering sea, the Gulf of Navarino and the Anadyr, Koryak coast. Meet uglovoye shrimp from the American coast in Puget Sound, off the Asiatic coast, in the southern part of Sakhalin to Aniva Bay in the area from the Chukchi sea to the Peter the Great Bay. They prefer to stay where there are strong currents near the muddy bottom at depths of 20-90 m, at least 120 m and 140 m. However, it is inherent in vertical migration, passing haphazardly. That is, shrimp can climb in the water column to a height of 10 m or to stay closer to the bottom. The most regular they have daily migration. In the evening, they rise and fall in the morning.

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Uglovaty shrimp: description

This sea dweller is a mollusk that belongs to the infraorder of Crustacea and to the order Decapod. In fact, the legs of shrimp instead of 10 more. So, 5 pairs of thoracic limbs she needs to move, 3 pairs of head for hunting and protection, tail and legs for swimming. In males the first pair of head feet became an institution for reproduction.

Size pohvastat shrimp depends on her age. So, in a year and a half it is equal to 40-50 mm, in 2.5 years – 75 mm, and 3.5 years – 80-90 mm. While its weight is 8 grams. Shrimp live an average of 5 years, but under favorable the circumstances, can make it to 7 years. The name “uglovaty” she was given because her tail is at an angle to the line of the body. Skeleton as such, these crustaceans no, it replaces the shell. On the head they located eyes and long antennae antenna through which the shrimp feel and smell. Under them are antennule by which they recognize the chemicals.

Reproduction

Not only “growth”, but also gender throughout life changes uglovaty shrimp. The photo above shows what she undergoes morphological changes. These molluscs are essentially dioecious, that is, they have female and male. But they belong to a group of living beings called protodioscin hermaphrodites. “Pretentiously” in Greek is translated as "first man". This means that these clams are born males and about 3 years transformed into females, but at this age they can still act like males. Next mens functions prawns lose. Mating ritual they have short. The female releases into the water odorous pheromones that attract males. Mating lasts less than a minute. Uglovoye shrimp spawn in the spring. Their eggs are very small, the color blue. One female can lay only 30 eggs, but in General they deposited hundreds of thousands.

Lifestyle

Uglovaty shrimp as a species survives due to its size. Of eggs from late may to July hatch into tiny larvae. In the process of growth they are seven times shed the old that has become a close shell and covered with a new one.

Shrimp are predators. Their diet consists of small plankton organisms. Day shrimp mostly hiding in the mud. Outside, they expose only their antenna and Antonella. Their caudal legs are so arranged that enable them in case of danger bounce back that knocks predators preying on them and saves their lives.

Role in the biological chain

Uglovaty shrimp plays a huge role in the biosystem of the seas and oceans. Its larvae, feeding on plankton representatives, themselves also part of it and are the main food for many marine species. Grown-up shrimp-a favorite food of cod and Pollock. In the stomachs of large individuals sometimes find up to 70 eaten their shrimp. And the dead fish eat some kinds of shrimp. Uglovaty a scavenger is not. She eats only fresh and ecologically clean food. Maybe that's why its meat has high taste qualities.

Significance

Not only tasty, but also useful for human health meat is famous for uglovaty shrimp. Reviews on gourmet dishes from her always positive. Prepare salads, cheesecroquettes, various side dishes.

In the meat of shrimp include vitamins (especially vitamin E), trace minerals (zinc, potassium, iodine, calcium), fatty acid omega-3. Regularly eating shrimp in food, can reduce blood “bad” cholesterol, improve skin, hair, nails, improve heart function, boost immunity. As a diet food, their meat is offered to those who want to lose weight and suffering from diseases of the thyroid gland caused by iodine deficiency.

Sell shrimp fresh and frozen. Catch them at depths of up to 120 meters using bottom trawls. With good weather and quality fishing equipment for a half-hour production could reach more than a ton. Many vessels, engaged in catching shrimp, carry a mini-processing factories. Shrimp there once boiled, glaziou, packaged in a freight container and freeze. Therefore, buying in the store like this product, you can be sure its excellent quality.