What is skates?

Skate is a cartilage fish that is most related to beams and sharks. Unlike beams and sharks, every kind of skate is completely harmless to people. Like the rays, skates tend to slip along the bottom of shallow ocean areas, eat mostly small fish and crustaceans.

There are about 200 types of skates in the world and sometimes it is difficult to distinguish from rays. Some have more rounded bodies than often a diamond or diamond -shaped beam, but others have a very similar shape. Some primary differences can be seen in the tail of skates that lack the spine. Male skates can be seen for their enlarged scales near their eyes and on the tip of their wings.

Skate reproductive behavior also differs from beam behavior. Skates lie eggs in a small formation called Maar Doll handbag. Rays, on the other hand, gives birth to young. In addition, skate usually has prominent dorsal fin, which is usually missing. They can then move with the appropriate speed. Skates are considered extremeI obedient to me and her little teeth are not a threat to people. Several beams, although they are also considered relatively harmless, can stab their tails or bring electric shocks.

different types of skates can be found in most of the world's oceans and show an extraordinary size scattering. Small skates, for example, are only one to two feet long (30.48-60.96 cm). Some skates are much larger - the largest skates in North American waters are called non -meaginative, large skates. It is impressive in size, up to eight feet (2.44 m) length and can weigh up to £ 200 (90.72 kg).

Skate may vary in color and has two round marks, about half the body that look like eyes. Skates can be gray, brown or multicolored and often mixed very well with the floor of the sand ocean. This camouflage helps skate to hide from the main predators, large sharks. Skate has a small defense against the foodAllocia, except that he is hiding and hopes that it will not be recorded.

Sometimes skates are harvested for food, but many kinds of sharks are much more likely to be too hunted. In fact, in 2007, several ecologists joined to theorized that both the populations of the skates and the beams have increased significantly by continuing to destroy the best predators, such as sharks. The growing number of skates and beams burdened their own food sources, resulting in a decrease in the population of some of the favorite types of molluscs such as shells.