Sturgeon is a large entrance, or semi-anadromous freshwater fish related to the sturgeon family. The body had arranged longitudinal rows of bony scales corymbose and fins - long
rays. There are 19 species of sturgeon. Basically - is communicating fish that average reach 3 m in length and weigh about 200 kg. Some of the most successful fishermen managed to catch white sturgeon specimens whose weight was more than 800 kg.
Fish prevalent in the Caspian, Azov and Black seas and in the rivers flowing mainly through the territory of Russia. Sometimes you can see fairly large representatives of this type, despite the fact that their number is considerably lately decreased. In the Caspian Sea, the Persian sturgeon can be caught, Russian, spike and sturgeon. In the Baltic Sea and the rivers of the Baltic Sea is found predominantly German sturgeon in the basin of the Arctic Ocean usual starlet. In the spring sturgeon come to spawn in the rivers of the lakes of Siberia, where he caught in large numbers, especially in the basin of the Yenisei, Ob and Amur. One of the most extensive areas of habitat is the Atlantic sturgeon. It is possible to catch in Europe (France, Spain, the Nordic countries of the Adriatic Sea), America, Turkey, Romania, Bulgaria and China.
History sturgeon is a mixture of legends, facts and rumors. But that only emphasizes the uniqueness of the fish, because many believe that it is the same age of dinosaurs and mammoths. If true, the fish could survive all the disasters that have occurred around the globe. In China, there is a belief that the end of his life sturgeon turns into a dragon. And according to the Phoenician archaeological finds dating back to 2400 BC, sturgeon caviar already in the old days used to canned food during long sea voyages.
Aristotle mentions the sturgeon in their descriptions of ancient feasts. There's the sound of the victorious march of the black sturgeon caviar was served at the table of winners. But in Europe about sturgeon heard only after the advent of Alexander the Great, Aristotle's pupil. He was carrying the eggs of sturgeon as army provisions. Herodotus in his writings about the Scythian tribes who eat mostly sturgeon. I mentioned this wonderful fish and in the books of Arab chroniclers. Marco Polo and Olearius described in detail the catch of sturgeon in the Caspian Sea.
Currently, sturgeon mainly inhabits the Caspian Sea. Mass-fishing in recent decades has led to a significant reduction of its population. Saves sturgeon only the very rich fertility, which allows him to survive in this merciless and total catch. In the spawning period of eggs is about 1/5 of the mass of the fish's body and the number of eggs of several million.
The sturgeon industry is valued not only for fat tender meat and a large number of eggs, but also for the spinal chord - vyazigu that eat, as well as the swim bladder, which is prepared from fish glue. Sturgeon meat is sold fresh, frozen, smoked, salted and dried form.
The composition and caloric content of sturgeons
100g of sturgeon contains 10 grams of fat, 16 g protein. Caloric sturgeon average and approximately 164 kcal per 100g of product.
The protein contained
in fish is almost completely absorbed by the human body. The sturgeon meat contains phosphorus, amino acids, calcium, potassium, magnesium, iron, molybdenum, chromium, and chlorine. A solution contained in the fish more than the other products. Fish rich in vitamins B2, C, B1, RR et al. Sturgeon fish oil in the order of 10-15%.
Useful properties of sturgeon
The sturgeon are present in large quantities useful fatty acids that help to reduce cholesterol levels. Regular consumption of this fish is an excellent prevention of myocardial infarction. We also know that in any marine fish iodine is present, which is a must to complete the work of the thyroid gland.
The sturgeon meat contains highly digestible protein with a balanced composition of polyunsaturated fatty acids and amino acids, which are so necessary for people with nervous and cardiovascular diseases.
Vitamin A is contained in the sturgeon, necessary for people with poor eyesight, vitamin D, phosphorus and calcium are beneficial for pregnant women and children, trace elements and vitamin E - to people with weakened immune systems and the elderly. It turns out that caviar and sturgeon meat is beneficial to all segments of the population.
Because of the relatively high caloric sturgeon, its excessive use can lead to obesity, allergic reactions, and aggravation of diabetes mellitus.