Fish-moon, fish, sun, fish-head.
Fish-moon, fish, sun, fish-head – all the names of one pelagic fish, family loewenich, or the moon-fish (Molidae). In this family includes five types moon-fish, the most common of them view – Mola Mola.
Fish – the moon is the largest of modern bony fish, adult which on average is about 3 m in length and 150 kg in mass. In the Guinness book of world records recorded data about fish caught in 1908, near Sydney, the length of her torso was 4.26 m, and the weight 2235 kg
Although there is evidence that in the Atlantic ocean, near the coast of the USA (new Hampshire), was slowlen instance by a 5.5 m, the mass of which remained uncommitted.
The habitat of fish-moon tropical, subtropical and temperate waters of the world ocean. However, to spawn this fish-the sun is sent only in the tropical waters of the Atlantic, Indian and Pacific oceans. Some adult fish may include warm currents and to penetrate in lukewarm water.
In the waters of the Atlantic ocean, the fish can be seen near Newfoundland, Iceland, UK, in the Baltic sea and along the coast of Norway and the Kola Peninsula. You can also meet this fish in the sea of Japan and the Kuril Islands.
Fish – moon amazes with its unusual appearance. Her body squeezed from both sides, it is very tall and short. If you look at the fish in the profile, it seems that it is round and reminds the disk of the full moon, and Anfas fish more like a millstone mill. As if to look at this giant, he recalled the well-known us fish flounder. Thanks to this appearance of this fish and received its name (the moon, the sun, head).
The body of the fish covered with skin that is thick enough and there elastic as cartilage. The skin of the fish protected small bony knobs, which perform the function of scale, because the true scale of this fish is deprived. Due to this structure of the skin, fish-the moon is not afraid of direct blows from a gun, he just bounces off such a reservation. The colouring of the coat variety, you can see the fish brown, silver-gray, white, sometimes with patterns.
The tail fin of a fish is absent, and instead of it – lumpy pseudo-tail. This peculiarity is connected with a full reduction of the pelvic girdle. The dorsal and anal fins are large and fused together. Fish-moon floats, lying on his side, in turn, sorting out his fins, and small pectoral fins thus stabilize the position of the body.
To steer (to control the direction of motion), fish produce a stream of water from the mouth or gills. With this body shape, fish-the moon is a very bad swimmer, she uses the passive movement. However, while it enjoys the features of their anatomy – making from the water his large dorsal fin triangular scares people-hunters who inexperience can take her by the shark.
Basically this fish swims at a depth of 100-400m. But there are some instances that rise to the surface of the water. Many researchers believe that float on the water surface only sick fish. As proof, given the fact that stomach content caught on sea surface fish are very few.
Fish in the storm goes in shallow water. This feature fish-moon was observed by local residents of the offshore Islands, and believe it appeared in the waters of the coast is a bad omen, as it is a sign of the coming storm. On the other hand is a reliable precursor fishermen.
The fish’s head ends with a small mouth, like a parrot’s beak. This big bill form the four fused front teeth. Fish sucks production – zooplankton. In the throat are pharyngeal teeth, which is quite long and function grinding food.
Confirmation of this can be found by viewing the data on the study of the contents of the stomach. It found crustaceans, small squids and Grebenikov and jellyfish. But there are data about active fishing mining and well-known Russian scientist – ichthyologist the Vedenskiy, told that witnessed unprecedented hunting fish-moon on mackerel. During her fish-sun accelerates with the speed with which only may, at his body and jumps out of the water, flopping on the surface and stunning sacrifice.
Fish skeleton consists mainly of cartilage, the vertebra is less in comparison with other bony fish, for example, in the form of mola mola – there are only 16. Adult fish-moon no swim bladder.
The brain is very small with 4 g and explain apathetic behavior of fish. So, for example, a person is free to approach it in the water at close range and it will not be frightened. Fish-moon with the friction of pharyngeal teeth can produce sounds. About what ichthyologist Alfred Brehm wrote: “In irritable moon-fish grunts like a pig”.
Despite its passive behavior, fish-moon turns for help to the animals-sweepers: fish and birds. In order to clear your skin from parasites she is looking for habitat for fish-sweepers. For their involvement in the process of cleaning it gives the sign, rising to the surface of the water almost vertically with your head and waiting for the fish-cleaner will clean it from parasites.
In the same way it can rise to the surface with sticking out of the water dorsal fin and beak, attracting the attention of sea birds that cleanse her skin from a particularly stubborn parasites.
These fish singles, very rarely you can find a pair, and even more the flock. Spawning begins with July and ends in October. Mating takes place on the surface of the water. The number postpone eggs one individual is huge – 300 million, which indicates a high degree of destruction of embryos. The size of each egg approximately 0.1, see
If you put all the eggs in a row, you can get a chain length of 300 km at the birth of fry moon-fish they 6 million times smaller than the amount of his mother. Considering the limited habitat of fish-moon it can be assumed that the survival rate of juveniles, is very low.
In its lifecycle all the moon-fish pass through several stages of development, the development is with the metamorphosis, because all the forms are different and not like each other. Born from an egg, larvae reminiscent of gloryhol (rounded body, big head).
Then on the body the larvae that have not died and grew, there are a wide bone plates, jogs which gradually turn into a long, sharp thorns. Along with the growth of larvae disappears tail fin and swim bladder, and all the fish teeth are fused into a single plate.
Larvae of fish and young individuals swim as all bony fish. The fry is not very similar to adult fish, and until recently it was regarded as separate species.
Fish-the moon is difficult to move in the deep ocean, so it can easily become prey for sharks, whales, sea lions and other predators. Hunting on them, predators try first of all to bite fins that generally immobilize apathetic fish.
The population of the moon-fish threatened and people: in many countries of Asia meat of the fish is considered to be curative in connection with what is and is their large-scale fishing. According to the latest data, which received the scientists – their meat toxic, because, as pufferfishes contains poison tetrodotoxin, which often leads to death.
But there are still fans who just eat its meat boiled or fried. In their reviews Alfred Brehm wrote: “the Meat is very tasty, like glue, with a disgusting smell; if it seethe, it can be used as a glue”.
But if you eat the liver, milk or eggs of these fish then definitely people will have serious poisoning, which can lead to death. But for the man in the natural environment of their dwelling, these fish are not dangerous and many lovers of the underwater beauty of the specially sent to Indonesia (Bali), in order to see her and in natural conditions swim beside her.
For lovers of aquariums can make a sad conclusion – fish-moon to be kept in a closed system – captivity (the aquarium, swimming pool) are not suitable, because no adapts quickly and dies. It is connected with impossibility to ensure the real living conditions of these fish.
Because the study of behaviour and lifestyle of these organisms carried out in a very superficial way, of the five existing types is studied only one.