Главная 7 Aquarium fish 7 Little-studied predator of the depths – house shark (goblin)

Little-studied predator of the depths – house shark (goblin)

One of the most unusual representatives of the chordian fish class lives in the deep waters of the ocean – it is a brownie shark. He belongs to the order of the Lam-like and is of interest due to its specific appearance.

Individuals are characterized by large size, able to grow up to three to five meters and weigh 120-140 pounds. Pink color dominates (due to the proximity of blood vessels) with blue on the ribs and fins. The main distinguishing feature is a long protruding nose, resembling a blade.

They predator probes the ground, catches the approach of other fish, oriented in space.

Goblin Shark is a rare species of fish.

Despite the fact that the species appeared about 80 million years ago, information about fish appeared only in 1898. David Starr Jordan caught a marine inhabitant, he also gave the primary characteristics.

Only a year later, were zoologists able to compile a scientific description and classify a shark.

The first adult was found near the coastline, near Japan. It is in this country that she received the name goblin sharks in honor of the folklore character with a big nose. In Russia, this name did not stick.

The word goblin was not used in Soviet times, so the predator became a brownie shark.

If you liked the video – share with friends:

Over the entire period, only 45 individuals caught in the ocean or discarded on land were found. After careful study, the features of the structure were identified:

  • torso in the form of a spindle, which makes it easy to maneuver in the water;
  • fins rounded, dorsal smaller than ventral and anal;
  • the protruding pointed outgrowth on the head is highly sensitive, thereby compensating for poor vision;
  • the third eyelid is not developed, the eyes are small, glow in the dark;
  • the cover is thin, translucent, the vessels are located very close, so that skin respiration is possible;
  • jaws are mobile, nostrils are located in the upper part.

The predator has powerful jaws.

The brown shark is still being studied, since the information collected for all the years is limited and does not reveal all the secrets of the life of these toothy representatives. Only once was it possible to obtain a living specimen, which was sent to the University of Tokyo.

The results of keeping the fish in captivity are sad, the individual died a week later.

Predators prefer to live in warm or temperate waters, so the shark-brownie can be found in almost all the world’s oceans with the exception of the Arctic. The accumulation of these animals was noted not far from Japan, it was there that the predator was most often caught. The species is present in the waters of New Zealand and North America, in the western parts of the Indian and Atlantic oceans.

Occurs in the Bay of Biscay and the Gulf of Mexico.

If you liked the video – share with friends:

The fish feels great at a depth of 300 meters, but it does not descend below 1,300 meters. In connection with the global warming of the oceans, the brownhouse shark began to occur in more shallow waters, which is unusual for this species.

Due to the fact that the species lives on the bottom, it is extremely difficult to carry out research work at such a depth. Based on a few data, scientists were able to collect some information about the habits of these creatures. Predators swim alone, do not form flocks and do not come into contact with other shark species.

The life expectancy of a deep-sea inhabitant remained unknown.

In terms of breeding experts adhere to the version that viviparous sharks. This is an assumption, since only male representatives were able to catch, no one saw the pregnant female.

The development of the embryo takes place in the mother’s body, and when the babies appear, they immediately become independent. The shark does not need to care, protect, feed and train the hunt.

These sharks inhabit the depths of the oceans.

Due to lack of information it is impossible to establish how many individuals are left. It is believed that this species is not numerous, although not endangered. The brown shark was taken under the protection of the International Union for Conservation of Nature and was listed in the Red Book as a “rare and poorly studied species.”

This measure is aimed at saving the predator from the barbaric activities of poachers. Hunters are eager to get the deep inhabitants for their jaws.

Large and sharp teeth are in great demand among collectors.

Since impenetrable darkness reigns at the bottom of the ocean, deep-sea sharks get food with the help of their long, super-sensitive nose. This wedge-shaped outgrowth is covered over the entire surface with cells capable of capturing the energy fields of the nearby fish.

With the help of such a device and a keen sense of smell, the predator easily discovers food.

If you liked the video – share with friends:

In the internal structure, there is a large liver (occupies the fourth part of the body), which not only serves as an alternative to the swimming bladder, but also a store of useful substances. Thanks to this feature, the shark can go without food for up to several weeks.

True accumulation of nutrient reserves in the liver inhibits predator maneuverability in water.

Sharks eat fish

The shark feeds on fish, zooplankton, crabs, squid, mollusks that live within the range. Unfortunately, this is only the assumptions of scientists, because experts did not succeed in exploring the contents of the gastrointestinal tract.

However, it is no doubt found that the brown shark is an important part of the food chain.

The enemies of the predators were not found. Even if the shark and there are ill-wishers, they are unable to strongly influence the number.

This species occupies a dominant position in the food hierarchy.

The deep world remains a mystery to scientists. Each of its monastery is unique and brownie shark is no exception.

Despite the fact that the predator is not used in the economy and does not have practical benefits for humans, it is of high importance for science.

If you liked the video – share with friends:

О admin

x

Check Also

Neon red (Paracheirodon axelrodi) – content, breeding

Family haratsinovye (Characidae). Homeland neon red is Brazil, Venezuela and Colombia. It mainly inhabits shallow ...

Black Barbus (Puntius nigrofasciatus) – content, breeding

Black Barbus (Pethia nigrofasciata / Puntius / Barbus nigrofasciatus) Gunther / Gunter, 1868, introduced to ...

Blades (Gasteropelecidae) – types, content, breeding

Blades – family Wedge Brute (Gasteropelecidae) The family Gasteropeletsid includes three genera: Carnigiela (Carnegiella), Gasteropelekusov ...

Neon blue (Paracheirodon innesi) – content, breeding

Neon blue or ordinary (Paracheirodon innesi) Myers, 1936. Refers to the order Cyprinids (Cypriniformes), sub-order ...

Glass catfish (Kryptopterus vitreolus) – content, dilution

Glass catfish (Kryptopterus vitreolus) NG KOTTELAT, 2013. Previously mistakenly identified as (Kryptopterus bicirrhis). Kryptopterus: from ...

Tetra Palmeri (Nematobrycon palmeri) – content, breeding

Tetra Palmer or royal tetra (Nematobrycon palmeri) – A representative of the Kharacin family was ...

Bolivian butterfly (Microgeophagus altispinosa) – keeping, breeding

There are many names of synonyms: Altispinoza Apistogram, Bolivian papiliochromis, Chromis Butterfly, Bolivian Apistogram. The ...

Wedge specks – types, description, content, breeding

Wedge specksRod Trigonostigma These fish are easily identified by their high, flattened laterally torso and ...

Neon black (Hyphessobrycon herbertaxelrodi) – content, breeding

Neon Black (Hyphessobrycon herbertaxelrodi) first appeared in European aquariums in 1961, in domestic – in ...

Tetra Amanda (Hyphessobrycon amandae) – content, breeding

Tetra Amanda (Hyphessobrycon amandae) GÉRY UJ, 1987. Hifessobrikon: from ancient Greek (hyphesson), which means “smaller ...

Gourami marble (Trichogaster trichopterus) – content, breeding

Marble gourami (Trichogaster trichopterus “cosby / opaline”) Marble gourami – a decorative look, obtained as ...

Botia dario (Botia dario) – description, content, breeding

Botia Dario (Botia dario) HAMILTON, 1822. Botsiya Dario – a very bright and beautiful fish ...

Coliseum striped (Colisa fasciata) – content, breeding

Coliseum striped (Colisa fasciata) The coliza of the Belontev family is striped with a variety ...

Orizias vovora (Oryzias woworae) – content, breeding

Oryzias woworae PARENTI HADIATY 2010. Rod Orizias (Oryzias) – Rice Fish. Orizias vovora is a ...

Tetra Diamond (Moenkhausia pittieri) – content, breeding

Diamond Tetra (Moenkhausia pittieri) Eigenmann, 1920. Tetra Brillintovaya or Almaznaya is one of the most ...

Koridoras Rabauti (Corydoras rabauti) – content, breeding

Rabidy Corridor (Corydoras rabauti) Rabauti Corridor is a very active, friendly and curious fish that ...

Botsiya dwarf (Yunnanilus cruciatus) – content, breeding

Botsiya dwarf striped (Yunnanilus cruciatus) Striped was first described in 1944. Names are synonyms: Yunnanilus ...

Adolf’s Corridor (Corydoras adolfoi) – content, breeding

Adolphus Corridor (Corydoras adolfoi) Burgess, 1982 Adolf’s Corridor is a very elegant catfish, described only ...

Speckled otozinclus (Otocinclus flexilis) – content, breeding

Ototsinkly Mottled (Otocinclus flexilis) Habitat: Ototsinkly speckled inhabits both rapid and calm rivers with dense ...

Tetra Kerry (Inpaichthys kerri) – content, breeding

Kerry or False Royal Tetra (Inpaichthys kerri) Gery Junk, 1977 Other names: Tetra Kerry, Violet ...

Koridoras pygmy (Corydoras pygmaeus) – content, breeding

Pygmy Corridor (Corydoras pygmaeus) Knaack, 1966 Corridor Pygmy is a miniature fish with an elegant ...

Marble Botion (Botia lohachata) – content, breeding

Botsiya marble (Botia lohachata) It became known to aquarists in 1912, and only got to ...

Koridoras similis (Corydoras similis) – content, breeding

Koridoras similis (Corydoras similis) Habitat: The Similis Corridor is found in nature in the Madeira ...

Popondetta furcata (Pseudomugil furcatus) – content, breeding

Popondetta blue-eyed or Popondetta furcata (Pseudomugil furcatus) Popondetta furcata of the melanoteny family lives in ...