Giant Oarfish

The fish introduced this time is a fish very famous as deep sea fish.
And I am the most interested fish in deep sea fish. The name is Giant Oarfish. We call it "Ryuuguunotukai" in Japan.
The whole body of Giant oarfish is silver gray.
The fin of a dorsal fin, a pectoral fin, and a ventral fin assumes skillful red, and serves as appearance suitable for "the messenger of Ryuuguu" which is a Japanese name.
Although full length is about 3 m in many cases, the individual which reached 11 m and the weight of 272 kg at the maximum has been reported.
In fishes with the bone which exists now, it is the longest kind in the world at present.






As crushed from right and left, the body flat, and it is thinly long and slender.
Body quantity of a head is the highest and it is tapering off toward a tail.
It does not have a scale and a tooth.



The fin of a ventral fin has only one right and left at a time, and it progresses remarkably long like thread.
The tip of a ventral fin swells in the shape of an oar, and serves as the origin of "Oarfish" which is one of the English names of this kind.
It turns out that many chemoreceptors exist in this swollen portion, and also considers suddenly the function to detect existence of a food living thing.

Giant Oarfish is broadly distributed over open seas of the sea in the world, such as the Pacific Ocean, the Indian Ocean, and the Atlantic Ocean.
It is the deep sea fish which lives independently without drifting the middle layer which is distant from the seabed, and making a group.



An original habitation region is the deep sea of the open sea away from land, and it does not appear in public rash.
However, the characteristic figure is well known for the pictorial book etc.
The image record which photoed the figure which is actually useful, and in which it is swimming is very scarce.
Therefore, about ecology, it hardly understands.
Usually, it is stood still where most whole body is uprighted.
When moving, the body is leaned aslant, and it is thought that a long dorsal fin is made wave and made and it swims.

It was guessed by investigation of gastric contents that feeding habits were plankton feeding habits, and they have mainly preyed on the crustacea, such as a krill.
It is also a certain large　sized fishes that this kind exceeds 5 m, and it is concluded that being preyed except for pelagic sharks is rare.
It is expected that a fry moves to the middle layer with a depth of water of about 200 to 1000 m of deep sea according to growth.


From the strong appearance of the impact, Giant Oarfish is considered to have become a basis of the mighty creature tradition of every corner of the earth.
The existence was known for many years, and it was called "the king of the herring" and was regarded as the sign which divines the success or failure of a fishery in Europe .
In Japan, it was told as a part of "Ryuuguu" tradition or a mermaid as the Japanese name.
Usually, although deep sea is inhabited, the individual wound up and troubled with the billow appears rarely on the coast.
The example which was launched by the seashore or was unintentionally captured by the fishing net may be reported as news.
Many individuals were launched by the beach and a number of years or a front became the center of attention from the Sea of Japan.
In addition, according to several persons' testimony then eaten, it is supposed that the meat of this kind is soft from a white, and it is hardly suitable for edible since there is no taste appropriate for fat.
On the other hand, if it grills with salt, much water will come out, but there is also testimony of being eaten with good appetite the whole skin.

Moreover, Giant Oarfish also has many scholars who insist are related as for an earthquake.
According to them, when Giant Oarfish appears, it is supposed that cautions are required in the long run at the big earthquake.
This is movie of Giant Oarfish From You tube.
http://youtu.be/qeOaumx7wHc

Lantern fish

The unusual fish is introduced a little this time. The name is Lantern fish. In Japan, we call this fish "Hadakaiwasi".
Lantern fish is a fish to which a scale separates very easily.
If caught in net,a scale will be able to be taken immediately.
Therefore when Lantern fish catches, a scale hardly attaches a sardine.
From the figure and feature, it is called by the name of "Hadakaiwasi".

The body is somewhat flat right and left, and has a form near a herring etc. in them. 

A mouth is larger and turns to the bodily front.
Eyes are large.
A scale separates easily.
The color of the body is mainly brown from black.
Although a size is to what exceeds 20 cm from a small kind of 3 cm or less, as the whole, there are many kinds of 10 cm or less.
It has a luminescent organ on the surface of the body, and English name lantern fish originates in this.

Since it lives in the deep sea which light does not reach easily, the luminescent organ is important.

A luminescent organ is used as a mark at the time of making a group and the pair at the time of breeding.

Moreover, it is supposed that the luminescent organ is used for the protective coloring etc. which make it hard to be visible from a predation person's eyes.

Moreover, there is a kind with a big luminescent organ ahead of eyes, and it is said whether to use for investigation of food. 

It is distributed over the southern sea and the sea in the world to near the equator from the north sea.

The habitation range is wide and inhabits the deep sea near the seabed from near a sea surface.

Although it is famous as deep sea  fish, performing night movement which surfaces even to quite shallow depth of water is known.

Distance of this movement is made into depth of water, and ranges from several 100 m also to 1500 m depending on a seed.

Food is mainly a zooplankton.

It will be weak in the sea like small fish, such as a sardine, and will be the food of many fish or a bird.
It plays the role which passes higher order consumers the nutrition which plankton has.

Moreover, it is said that it has also played the role which carries the energy made near the sea surface to deep sea by perpendicular movement.

Although there are many resources,  the fishing which set the Lantern fish as the main objects is hardly performed in the world.
Although the use as edible is not common, either, depending on rural areas, it may be considered as edible as materials of roast fish, frying without coating, and boiled fish paste, and so on.

However as lipid, there are many kinds containing unabsorbable wax, and since a possibility of having diarrhea if it eats much can be considered, cautions are required in the human digestive organs.

If it is little, it will seem that it is usually satisfactory.

In Japan ,　 Lantern fish is eaten.

It is not so new at fishing ports, such as Kochi Prefecture and Mie Prefecture.

The dried food of Lantern fish is a skill which becomes infatuation, if it is eaten.

I want to eat Lantern fish in the future.

However, I would like to take care so that a lot may not be eaten just because it is delicious.

Coelacanth

Do you know Coelacanth? Coelacanth is the deep sea fish which alive the longest time in the all of the fish. There are many mysteries in coelacanth and it is very attractive. I want to introduce this fish today.






As for coelacanth, existence was known with many fossils.
It was thought that most was exterminated about 65 million years ago.
It was thought long that coelacanth was exterminated. However, existence was checked in South Africa in 1938, and it was surprised very much. Coelacanth is called living fossil. It survives so long and is a very precious existence. It is thought that coelacanth was far distributed over the shallow sea in the world widely at ancient times. What also has bodily shape and various lengths is known. Moreover, the huge coelacanth to which the restored full length amounts to 3 m is also known. The coelacanth of ready money inhabits deep sea and it is thought that it has preyed on the fish and the cuttlefish.






















In a certain area, coelacanth is called　Gonbessa. Although Gonbessa was the meaning "a shrewd fish" and "the fish which cannot be used", when coelacanth had been fished, since it said that I had you buy it highly, it came to be used for the purpose of "the fish which calls happiness."
A fish, a cuttlefish, etc. are eaten in the broad area from the depth of water of 40 meters to deep sea deeper than 600 meters. Eating habits are the types which add and eat what approaches while drifting. It seems that the animals which often "do a handstand" and wriggle to the seabed are eaten. The friend and cuttlefish of mackerel came out from the stomach of the coelacanth currently exhibitedIt has splendid breast Viret and belly Viret who walk along land. It is the feature that there are a big bone which cannot be seen with other fish, and a joint in this fillet. Moreover, it has also been the big feature that there is no backbone. The hose-like pipe is flatly connected to the tail instead of the hard backbone, and the inside of it is filled with a liquid like oil.




http://youtu.be/jGjH-HF1L_w