What is an ice fish?

Icefish is an animal that exists around the continental shelf of Antarctica in the South Ocean. Scientifically are referred to as notothenoidi. Icefish is located at any other place of the planet, which makes them endemic. In the whole area, these types of fish are most important and are 95 percent of all sea life. There are eight different families with 43 different types of genera. Overall, ice fish is 122 species, all found in the South Ocean. Although new are discovered constantly. Other fish can only survive in moderate and tropical climate and die in the South Ocean. When the water temperature drops below the freezing point in the blood, the tryba is killed. Icefish have what scientists refer to as "antifreeze proteins". These glycoproteins bind to the ice crystals that are formed in their bloodstream, and prevent an animal from dying.

Although most animals live in a temperature zone of 28.4 ° F (about -2 ° C) and 39.2 ° F (about 4 ° C), someThe species in the Ice Fish family can survive in a warmer climate. Examples of Nototheniidei were located near South America and New Zealand, where the water temperature reaches 50 ° C (about 10 ° C). Weak water cannot freeze until it gets 28.4 ° F (about -2 ° C), which means that the animal dies below these temperatures despite its "antifreeze proteins".

Since the ice fish has no vessel, an organ that is filled with gas and allows fish to rise and fall into the ocean, they are pushed into the world of fish living. This means that they are known as bentic fish. Some of the fish, however, adapted to evolution, but the development of larger lipid deposits, types of fat. In addition, Nototheniidei also lost some of its bone structures and thinned the density of these bones. This helps to reduce the weight of the fish, which has made them better to control their buoyancy.

Icefish are also unique in using oxygen in the blood. Most fish and other animals require approximately 45 percent of hemoglo in the bloodbinu. This is a material that binds to oxygen and provides energy for the animal. Due to the tendency of cold water containing high oxygen levels, many notothenoids have only one percent of hemoglobin. Instead, oxygen spreads through the blood circulation directly by plasma.