Everyone knows that fish is a valuable and nutritious product that is at least a couple times a week should be present in our diet.
Historically, in our country the most popular freshwater fish. In some regions this situation has continued until now. Still, if there is some kind of stream, maybe a lake or pond, the fishing for many people is not only a favorite pastime, but sometimes even feed his own family.
As for the fish of the sea, on sale now has a huge range. Exotic fish species and non-fish seafood is widely available in retail chains. If earlier to enjoy clams or oysters in some fancy restaurants now, things are better… And it is quite justified, because the merits of sea fish countless.
First, a major plus. which distinguishes the inhabitant of the seas from their river congeners, is the high content of complete protein. Fish protein as meat, contains all essential amino acids, and is absorbed more quickly and easier. Depending on the breed marine fish percentage of protein ranges from 20 to 26 per cent. For comparison – in the river it rarely reaches 20 percent. Continue reading
SHARK . superorder of cartilaginous fish. Includes 8 units and approx. 350 species distributed in all oceans. The most diverse and numerous sharks in the tropics, but occur also in temperate and even in cold waters. Live in the water column and near the bottom, at great depths and in the coastal shallows. Ascend rivers for hundreds of kilometers (eg. the Amazon) that inhabit lake Nicaragua and some others. In Russian waters approx. 10 species, including katrenova shark (spiny dogfish), polar shark, mackerel sharks and hammerhead sharks .
The body of sharks is well adapted to fast and maneuverable swimming. It has an elongated, torpedo-like shape and ends in a large tail fin. DL. body from 15-20 cm (some kind of old-fashioned recourses and weasel sharks) to 20 m (with a weight of 12-14 tons) of whale shark . Since the density of the body of sharks is greater than the density of water, they must constantly move, not to go to the bottom. Best swimmers – Mako speeds up to 60 km/h; when the throw to the prey speed increases. Jaws are armed with a large number of sharp teeth, easily cut through any sacrifice. Continue reading
Mako shark (Isurus oxyrhinchus) – the champion of the fastest sharks, reaching up to 4 meters long and weight more than half a ton. Belongs to the category of very dangerous to humans shark species, due to its size and aggressive disposition. Show all..
Giant hammerhead shark (Sphyrna mokarran) – can reach a length of over 6 meters and its weight about half a ton. In different regions of the world registered a lot of cases of these sharks aggression against people, so it ranked as top ten most dangerous sharks. It should be noted, however, that these predatory fishes have not met in the waters of the Mediterranean sea. Apparently, they are too rarely visit these fertile for people, or even completely lost interest in them. Be that as it may, several years of encounters with giant hammerhead sharks in the Mediterranean sea. Continue reading