shilbovy giant catfish is the largest fish of Southeast Asia, it is up to three meters long and weigh up to two hundred kilograms.This species of shark catfish in the Mekong River, which extends for about four and a half thousand kilometers.Because of the active fishing habitat, the giant catfish shilbovy is on the verge of extinction and is listed in the Red Book.In most countries where the usual catfish, his catch is prohibited, as a unit, a private fishing of Mekong giant is allowed only in Thailand.
European catfish - even bigger fish than its Asian cousin.The body length of this large fish up to five meters, and European catfish can weigh up to four kilos.Its main habitat - Russia and Eastern Europe, but i
n the south and in the northern countries, this giant is not found.Adults catfish feed on fish, shellfish and aquatic animals, but can attack on humans, such cases are not uncommon.In winter catfish virtually inactive and did not even eat, and get off before freeze-up in groups of a few individuals in anticipation of the heat.
In South America, too, is found a giant arapaima is a Brazilian.It can reach three to four meters and weigh up to two kilograms.Its origin is extremely ancient and arapaima is a real living fossil that has reached our days from the time of the dinosaurs.Another feature of this fish is that it can breathe atmospheric air.This allows it to burrow into the mud during the drought, and wait for a better time for an active life.Brazilian arapaima - not disappear, but rather a rare fish, and in some parts of its habitat catch arapaima is prohibited.Despite the relative rarity to see this giant fish can be not only in South America - Brazil arapaima is widespread in various zoos and aquariums large and also have been introduced in the waters of Malaysia and Thailand.
All of these fish can be called giants of their habitat, but they do not compare to beluga.This fish sturgeon family is six, and according to unconfirmed reports - nine meters in length and is the largest among those who comes to fresh water.Beluga lives in the Black, Azov and Caspian seas, but regularly swims in rivers such as the Volga, Terek, the Danube, Dniester and the Dnieper, and far enough.Fishing prohibited it - this fish is endangered and listed in the Red Book.