Fish which live the deepest sea

One question will have been borne if investigated about deep sea fish. I have a question what is the fish which lives in deep sea most. I investigated about this question this time.
The deepest deep sea in the world is Mariana Trench. It is said that it is about 10920 m in depth. Generally deep sea is the sea deeper than 200 m.
Considering that, it turns out that it is the world where deep sea is large and deep.
 A fish called Yominoasiro is introduced first. A caudal fin is lost, and if the body sees from width, it is carrying out the form near a long and slender oval figure.






 The length is a small fish of the grade over 10 cm. Compared with the same kind of deep sea fish fish, it is very small.As compared with the body, it is large, and a head becomes about  1/3, and a mouth's is large. Eyes are buried under the skin, and degenerate and are hardly conspicuous. The color of the body is a cinnamon color.










Near the trench of the super　deep ocean floor is made into the habitat.
Food is a small living thing which lives in the dead body of the living thing which mainly falls from the upper sea, and the super　deep sea in which it gathers in quest of it.
It has the deepest habitation record of 8370 m in all the fishes.
There is a possibility that a strange living thing will be discovered in super　deep sea, still more. Therefore, the deep sea fish which lives in a future more deep place will be discovered.
 Next, the fish to introduce is a fish called hadal snaiilfish. This fish is discovered in the deep sea in Japan. The body is flexible and it is carrying out it flabbily. Although a head is large, a caudal portion is an anticlimax, and when it sees from a top, it has a form similar to a tadpole. In about 10 ～ 20 cm, the length is 23.8 cm in full length at the maximum.
Some internal organs are transparent and it is visible. Eyes are black and small.















 Snaiilfish is very pretty although there are many deep sea fish of the fearful appearance.
It is a demersal fish which inhabits the sea deeper than the depth of water of 6000 m, and lives near the seabed of a trench. It is in one of the kinds which conflicts and divides in deep sea fish and lives in a deep domain.The habitation region which is clear until now is restricted to the depths of the trench in the northwestern Pacific Ocean.
It is witnessed with the depth of water of 7587 m of the Japan Deep and the Kuril trench.

Dishes of deep sea fish

Deep sea fish has many which have the feeling that appearance is bad.
However, unlike appearance, there are many delicious fish.
I would like to introduce the dish with delicious deep sea fish this time.
I would like to introduce deep sea fish called an oil fish to the beginning.
Seemingly, deep sea fish called an oil fish is a fish which hid the thick taste of the rare object of art. However, as a problem, most oil and fats ingredients of the inside of the body of this fish are made of wax ester nondigestible in a human body.
Therefore, if it takes in in large quantities, he may become sick or it may start diarrhea and a stomachache. Dying has also been reported when ingestion is carried out so much.
However, many of persons who ate this fish have extolled the taste.
Seemingly it will be very thick, and seemingly there are many meat juices and texture's will be very wonderful. Moreover, a thing that there is also no bad smell and it is very easy to eat. Although there is courage in eating very much, it is one of the fish to eat at once.
 Next, what is introduced is a fish called Nodoguro. The official name of Nodoguro is dirt Mutsu. However, in the Sea of Japan, since the inside of a mouth is black, it is called Nodoguro. Since Nodoguro inhabits the comparatively shallow sea also in deep sea fish, appearance hardly changes it to an ordinary fish.
Since the taste of Nodoguro is very delicious, it is also called the high class fish of the phantom. Seemingly, the general and most delicious way of eating will eat as a dish grilled with salt or sliced raw fish.
Goosefish is also famous as delicious deep sea fish. Goosefish hotpot is the most general way of eating. We can eat place except bone and the gelatin content of the skin is the most delicious also in Goosefish.Seemingly a prefecture famous for landing of Goosefish incidentally is Ibaraki Prefecture. Goosefish hotpot was called Dobuziru and fishermen were eating it from ancient times. A decade ago, Goosefish did not become an article for sale.
Then, the pan and it which fishermen invented are Dobuziru.
Seemingly, Dobuziru cooked using much Goosefish will not use any water.
Juice is made only from the moisture which comes out of Goosefish.
Therefore, it is a thing that it is substantial and the thick taste of a liver is very delicious.
I would like to eat such deep sea fish once.
I studied that the delicacy of the fish isn't based on appearance.

Body structure

A solar light hardly reaches deep sea.
Moreover, water pressure is high, the temperature of water is also low, and there are few organic matters which can be used. Thus, conditions with deep sea severe for a living thing are met. In order to live in such environment, deep sea fish fish has the various unusual features in the body. It is considered that the device would like to introduce this time. The bone and muscles in the body of fishes are heavy. The fish which lives in a shoal has acquired lift by swimming. In scarce deep sea, the deep sea fish needs to secure lift to the energy which can be exploited, without swimming as much as possible. In many deep sea fish fish, tissues in the living body, such as a bone, a cartilage, and muscles, are decreasing in number. Instead, moisture and fat are included so much.
A small kind and a kind without a scale also have many frames of a head, and they are estimated at one means towards a weight saving. A bladder is a general means by which the fish which lives in a shoal acquires lift. However, since water pressure is very high, it is not expectable in the function of a bladder in deep sea.
In order to be equal to flood pressure and a rapid pressure change, deep sea fish's wall of a bladder is thick, or the device of transposing a content to not gas but fat or wax is seen.
Sunlight arrives barely to about depth-sounding 1000m.
Therefore, what has a very big eyeball in the deep sea fish which lives in this domain to the body is. The light which arrives at deep sea is always poured from right above regardless of a solar position for dispersion and refraction. Moreover, there is also little change of light volume to sunset. Therefore, there is also much deep sea fish with the tubular eye which has turned to right above. In the sea deeper than the depth of water of 1000 m, light hardly arrives. Therefore, there are much deep sea  fish where eyes degenerate and which does not have eyes, and deep sea fish whose eyes are very small.
There are many kinds which emit light in deep sea fish. A bioluminescence is a luminous phenomenon which happens by a chemical reaction, and is one of the important features which many deep sea living things have.
It is supposed that a number of individuals is used and 90 percent or more emits light 70 percent of the deep sea fish which lives in the sea deeper than 500 m.
Deep sea fish captures food by emitting light, or takes deep sea fish communication.

Research of deep sea fish

Many mysteries which are not solved about deep sea fish exist even now when technology progressed greatly. While research which solves the mystery is done, research whether deep sea fish can be used by life is also performed. I would like to introduce the research this time. From the trawl fishery by a trawl net, a lot of deep sea fish is landed with an aimed high　class fish in many cases. Except for some deep sea fish used as steamed fish paste and so on, many deep sea fish was discarded from there being no market value until now. However, such deep sea fish is eaten in various places in recent years. Research that deep sea fish will be used as new fishing resources has been actively performed after the 1970s. Search of the deep sea fish which can be used as new resources is advanced by the Japanese survey ship. The Fisheries Agency performed the survey of natural resources of the deep sea by a northern sea trawler from 1977 to 1979. A Japanese survey ship which called Shinkai developed the deep sea fishery of every corner of the earth over 20 years from 1970. Many abyssal fish came to be used as edible as a result of these investigations. Therefore, import of deep sea fish and export came to be performed frequently. Research submersibles, such as Shinkai 2000, are also engaged in resources investigation and an ecology elucidation of bathybic fishery fish stocks, such as rockfish sandfish. Many of deep sea fish developed by the above trawler investigations is the kinds inhabiting the seabed. On the other hand, the Hadaka sardines which live to the middle layer of deep sea very mostly attract attention as an energy source supporting increase of global food demand. Since the friend of a Hadaka sardine has very much lipid, he has been considered not to turn to edible. However, having the lipid composition which is not different from a common edible fish has been reported by many kinds. If the total amount of living things of the deep sea fish which sails in the middle layer of deep sea goes up to at least 950 million tons, it is estimated.The method of utilizing these abundant resources that are not exploited is explored in recent years. Swimming deep sea fish is storing lipid in the inside of the body in many cases. However, it was discovered by investigation that there are some which contain wax as oil and fat content in inside. In a human body, since wax was indigestible, it was not turning to eating these fish meat. Sale is forbidden in Japan to the oil fish in which the amount of wax is especially large by Food sanitation law. Research whether the deep sea fish containing many  inside of the body such wax can be used as a certain energy is done. I got interested in this research very much. I would like to take notice of progress of future research.

History of discovery deep sea fish

Its environment was very severe, and since the range of deep sea was also very wide, compared with the shallow sea, observation and research were difficult for it.
Therefore, it was unknown whether a living thing existed, while it was long.
The deep sea inanimate object theory was announced in 1839. This was advocated by British scholar Edward Forbes. Deep sea inanimate object theories are the contents that a living thing does not exist in deep sea (range deeper than the depth of water of 548 m). This was considered from the results of an investigation of the survey ship performed by many years. Many people consented to this opinion and the living thing was widely considered not to exist by deep sea. However, the living thing was successively extracted by investigation of each country using a subsequent trawl and submarine cable from deep sea. Therefore, this deep sea inanimate object theory will be denied. However, about a deep sea living thing actually existing, it was not proved deterministically. Existence of a deep sea living thing was deterministically proved during 1876 after 1872. The large　scale round　the　world voyage of exploration by the challenger number of Royal Navy was carried out in the four years. The research findings of huge oceanography were brought about by this voyage. By these research findings, oceanographic investigation became full　scale in many countries. The history of research of deep sea fish also began from here. Therefore, research of deep sea fish was very difficult and did not progress easily. The deep sea fish which was caught in the net of the fishery by chance, or was launched by the seashore became a very precious specimen. However, the figure in which deep sea fish is actually alive could not be checked, and the information about a native habitat or ecology was hardly able to be acquired. The specimen extraction from deep sea was attained by improvement of a wire rope or a trawl after the second half of the 19th century. However, it was not still easy to carry out direct observation of the deep sea fish. The submarine was already put in practical use as a weapon at the time of World War I. However, the diving apparatus of it for the scientific purpose was behind by one side. In 1928, the ball in which people can ride and which can be dived was developed and observation of deep sea fish was attained at last. The ball in which the diving is possible was called Batisufair. Although Batisufair has not power, it succeeded in diving to the depth of 923 m. And deep sea investigation boat which is called bathyscaphe with power were built in 1948. Two or more succeeding machines were made and the bathyscaphe provided ecology observation of deep sea fish and a specimen collection with large depth with the powerful means. From the second half of the 20th century to the present age, investigation by Shinkai 6500 of Japan, the meal of Russia, the U.S. Alvin number, and so on is led, and the information about adaptation to the lifestyle and environment of deep sea fish is being accumulated. However, many mysteries still exist in deep sea fish. I would like to introduce being known through my blog now as much as possible.