When buying frozen shrimps from a store or ordering a specialty from them in a restaurant, we hardly think about how they live and what these little creatures are. But each of them is unique in its own way. For example, an angled shrimp hits records for survival and population growth. Its meat is the most useful for man, the most delicate and delicious. Therefore, these crustaceans are caught on a giant scale. Nevertheless, the number of angustail shrimps is not decreasing. On the contrary, their population is gradually growing, so they even lifted the limit on their catch. We suggest you familiarize yourself with the peculiarities of these amazing creatures, who have adapted to live well in such an uncomfortable world for them.
The angled shrimp can exist only in cool waters, the temperature of which is not lower than -0.1 ° C and not higher than -1.7 ° C (according to other data from -1.7 ° C to +3.5 ° C. These clams have been found in the Sea of Okhotsk, where their concentration is very high, Uglich shrimp is often called Okhotsk, and there are many of them in the Bering Sea, in the Anadyr and Navarinskiy Gulfs, near the Koryak coast, and there are angular shrimp off the American coast in the Gulf Puget Sound, off the Asian coast, in the southern part Sakhalin to Aniva Bay, in the area of the Chukchi Sea to the Gulf of Petra Velikogo. They prefer to stay where there are no strong currents near the muddy bottom at a depth of 20-90 meters, at least 120 m and even 140 m. However, it is inherent in the vertical migration of passing That is, shrimps can rise in the water column to a height of 10 m or stay closer to the bottom.The most regular is their daily migration .In the evening they rise, and in the morning they descend.
Ugluvost shrimp: description
This marine creature is a mollusk, belongs to the infra-crust of Crustaceans and to the detachment of the Desyatinoids. In fact, the legs of the shrimp are not 10, but more. So, 5 pairs of thoracic limbs are necessary for her to move, 3 pairs of head for hunting and protection, and tail legs for swimming. In males, the first pair of head legs became an organ for reproduction.
The size of the angular shrimp depends on its age. So, in a year and a half it is 40-50 mm, in 2.5 years - 75 mm, and in 3.5 years - 80-90 mm. At the same time, its weight reaches 8 grams. Shrimp live on average 5 years, but under favorable circumstances, they can last up to 7 years. The name "angular-tailed" was given to her, because her tail is at an angle to the body line. The skeleton itself does not have these crustaceans, it is replaced by a shell. They have eyes on their heads, as well as long antennae, with which the shrimps touch and smell. Below them are the antennae, through which they recognize chemicals.
Not only its "growth", but also sex during the life changes the angular shrimp. The photo above shows how it undergoes morphological changes. These mollusks are inherently dioecious, that is, they have female and male individuals. But they belong to a group of living beings called protandric hermaphrodites. "Protandrichesky" from the Greek translates as "first a man". This means that these mollusks are born male, and about 3 years old they become female, but at this age they can still act like males. Then the male functions of the shrimp are lost. The marriage ritual is short. The female releases into the water fragrant pheromones, which attract males. Mating lasts less than a minute. Spawning shrimp in spring. Their eggs are very small, in color blue. One female can lay it all down to 30 eggs, but in general they are deposited hundreds of thousands.
Uglohvosta shrimp as a species survives due to its strength. From the eggs from the end of May to July, the tiny larvae hatch. In the process of growth, they drop the old one seven times and become covered with a new shell.
Shrimp are predators. Their diet consists of small organisms of plankton. During the day shrimps are mostly hiding in the mud. Outside they expose only their antennas and Antonella. Their tail legs are so arranged that they are given the opportunity to jump back in case of danger, which destroys predators hunting for them, and saves their lives.
The role in the biological chain
Uglohvosta shrimp plays a huge role in the biosystem of the seas and oceans. Its larvae, eating representatives of plankton, themselves are also included in its composition and are the main food for many marine species of animals. Grown shrimps are the favorite food of cod and pollock. In the stomachs of large specimens, up to 70 shrimps eaten are sometimes found. A dead fish is eaten by some types of shrimp. Uglohvostaya scavenger is not. She eats extremely fresh and environmentally friendly food. Perhaps, that is why her meat has such high taste qualities.
Meaning for man
Not only tasty, but also healthy for people's health, meat is famous for its angled shrimp. Gourmet reviews of dishes from it are always only positive. From it prepare salads, cheese croquettes, all kinds of side dishes.
In the shrimp meat there are vitamins (especially a lot of vitamin E), trace elements (zinc, potassium, iodine, calcium), omega-3 fatty acid. Regularly eating shrimp in food, you can achieve a decrease in blood "bad" cholesterol, improve the skin, hair, nails, improve the heart, improve immunity. As dietary food, their meat is offered to those who seek to lose weight and suffer from thyroid disease caused by iodine deficiency.
Sell shrimp in fresh form and frozen. They catch them at a depth of 120 meters with the help of a bottom trawl. With good weather and high-quality fishing equipment for half an hour, production can be more than a ton. Many ships engaged in catching shrimp, have on their boards mini-plants for their processing. Shrimps there immediately boil, glaze, packaged in a container and frozen. Therefore, when buying such a product in the store, you can be sure of its excellent quality.