The movie of deep sea

　Hello, everyone.
　I introduced three fish of deep sea with the last report. It is further deepened this time. It focuses on all deep sea and introduces focusing on an movie. Let's approach attractive deep sea more.

　First, there is an organization which investigates the sea in Japan. It is called "JAMSTEC." They are not conducting investigation under the government. It stepped forward one new step as an independent administrative agency in 2004. Their existence is indispensable to marine research of Japan. Necessity of the existence increased further by the big earthquake in 2011. Let's get to know deep sea more after being based on their activity.

　The image here will be broadcast from NHK in August, 2012. It is a precious image when the "hyper-dolphin number" of JAMSTEC searches deep sea. This diving place is Okinawa. Depth of water is 1400 meters. What kind of the world spreads out sure enough?

controller

　As the image was suited, the arm of a submarine can be operated by remote control. A left photograph is a controller. The two arm  are called the robot arm. If a small arm operation term is moved, it is possible to a fine motion just like man's hand. And that it should further observe is a monitor which projects this Hi-Vision image. This monitor is the same as an "eye" for the human being who operates it. Each has an important role.
　Moreover, the structure called a "chimney" appeared in the second half of an image. This chimney is introduced with a future report. Can it be said that it is the same as approaching the actual condition of the earth to study deep sea?

 Let's go to the next movie.

　Recently, the top news about deep sea was reported. A legendary monster --Giant Squid--it is having succeeded in the photography of the figure which the cuttlefish is alive and swims. Giant squid is proud of the size of the world's largest class as a friend of a cuttlefish or an octopus. An 18-meter thing is also checked at the maximum. Since deep sea was inhabited, the ecology was strange, but it became one big step by having succeeded in image photography for the first time.
　Then, please look at an movie.

　It is a very wonderful image?
　It is said that the 50 staff participated from 11 nations in scientists or engineers in order to photo this image. A filming site is Ogasawara Islands in Japan. It will be excited if it thinks that that living thing [ like ] is alive to the seabed in Japan.
　But photography did not necessarily progress simply. It was the investigation and preparation to which what and the time as long as ten years were applied. 100 thing under which they go to the seabed, and its time reached also in 400 hours. The rhubarb which does not appear easily. It is said that various strategy was given to the Giant squid.This image has held many Japanese's heart.

　In addition, many deep sea images are exhibited in JAMSTEC. In this blog, there are many great images, so that it cannot introduce! How about looking in at the site of JAMSTEC? 

reference

• http://ja.wikipedia.org/wiki/JAMSTEC
• http://www.jamstec.go.jp/j/about/index.html
• http://homepage2.nifty.com/matsuura-ma/jamstec.html
• http://superkumamushi.web.fc2.com/ships.html
• http://www.nhk.or.jp/special/detail/2013/0113/index.html

Deep-sea fishes

　Have you seen the living thing of deep sea?
　The fish which generally lives in ocean space deeper than the depth of water of 200 meters is called deep-sea fish. However, the kind which changes depth is also in it as it grows up to be inside. Now, about 2000 sorts are checked. In order to bear the severe environment of deep sea, many living things are having special structure. The Deep-sea creature is carrying out as very strange appearance as the thing living the deep place.
　Let's show you three animals of my favorite are introduced with this report.

　The shark which exist also in the shallow sea. There are various kinds to what acts as an adult and attacks people from that of a potato of sharks. Then, what kind of figure is the shark of deep sea carrying out? 

Goblin shark

　This fish is called "Goblin Shark".   It is a very rare shark. The tip of the nose of the feature is very long. It is supposed that deep sea with a depth of about 1300 meters or more is inhabited. Since there is the feature of an ancient shark, it is also called "the living fossil." 

Full length is very large at about about 6 meters. While swimming usually, it acts as an adult very much, and it is and is visible to appearance. Since it is not a man-eater shark and people are attacked, it does not become precocious. 

　Goblin Shirk's jaw is very interesting. Please look at the movie here. The scene of which a jaw jumps out is very strange. Why did it have such a feature in dark deep sea? It is wonderful.

　

　Let's see the next fish. 

RYUGUNOTSUKAI

　WOW! It is very holy! This fish is called "RYUGUNOTSUKAI(竜宮の使い)". In an English name, it is called "Regalecus glesne." In 3 meters - about 11 meters, full length weighs about about 250 kg. In the fish with the bone checked now, it is considered as the longest kind in the world. The body is flat and becomes thin toward a tail. It is stood still where the whole body is uprighted usually. RYUGUNOTSUKAI is rarely launched by the offing. Since it does not seem to be rare to be realized as an earthquake or the previous announcement of evil these days. 

　It is here and they are bits of knowledge. It is said that RYUGUNOTSUKAI is a friend of ocean sunfish. From long and slender this, I do not imagination.  

　The right photograph of launched　RYUGUNOTSUKAI is here. It is this size even if it holds by three adult men. It is a surprise as such a living thing exists on the earth. 

Finally, I introduce the deep-sea frogfish.It seems that they were discovered to the seabed in Great Barrier Reef according to the report of National Geographic. It could be said that the ancient living thing is just alive. 

Them feature is the line of a fillet is extended for a long time. When the filar thing which has grown in some places of the body is the skin along which feeling passed, is it? That each one will catch change of delicate water. To the depth of water of 100 meters - 10000 meters, it lives broadly. A male can rarely meet with a scalpel in dark deep sea. So, the male of many animals is parasitic on the scalpel of one animal.   

　How was it? 

　Many kinds inhabit deep sea still more. How about finding one animal of your favorite? You can meet a surely interesting living thing!

reference

• http://pub.ne.jp/sakura2011/?entry_id=3973186
• http://ja.wikipedia.org/wiki/mainpage
• http://www.jamstec.go.jp/j/
• http://www.nationalgeographic.co.jp/news/

Deep sea water

　Deep sea water is taken up in this topic.

　Is deep sea water one? It is unfamiliar language not much. The sea on the earth is divided into a surface and the depths bordering on the depth of water of 200 meters. From the depths, water temperature falls suddenly. The sea water which is flowing through this deep sea that a solar light does not reach, either is deep sea water. These deep sea water is moving over two years in the ocean in the world. And for this reason, it is greatly concerned also with the climate of the earth almost as long as what and 2000 years going round. Although the talk of some sea water tends to be seemed, about 95% of the sea on the earth is this deep sea water.

　Deep sea water was found the 1920s for the first time in the world. It is said that it is the power generation experiment using the difference in temperature of sea water conducted by the French scientist. It was an occurrence in Hawaii in 1981 that research started for the purpose of employing in industry efficiently after that. The first research institute was built by Muroto in Japan in 1989. Now, various results of research are got. 

　Then, let's see the feature of deep sea water. 

1. Clean 
2. Nutritious
3. Water quality is stability 

　1: Deep sea water is very beautiful. It is because it is not subject to the influence of the river water which man polluted. That is, there is no contamination by a chemical substance. It is very safe water. 

　2: Deep sea water is nutrition perfect. The kind of many good also for man's body of mineral is included. Of course, the nutrient is abundantly contained in this deep sea water also for the marine living thing. 

　3: Water temperature is maintaining low temperature through one year. Since it can be said that the ingredient contained in deep sea water is also constant, and water quality is stable. 

　For what kind of thing is deep sea water utilized? It starts for food and is medical treatment, health, and cosmetics. Very various usage is carried out so that it may be called cosmetics, agriculture, and culture industry. 

　For example, in medical treatment, it is taken in as thalassotherapy. This word means "thalassotherapy." This is the medical treatment performed using the mud of seaweed, sea water, and the sea. In Japan, although this cure has not been authorized yet, it is taken in by the resort facility. It excels especially in the relaxed action which relieves the fatigue of mind and body. 

　Let's give an example in a fishery field. Cultivation of the sea weed from the stability of deep sea water or the abundance of nutrition, an abalone, etc. became easy. These can be ashore cultivated now. It is exactly because it is easy to adjust water temperature and amount of water can also be given abundantly. Therefore, growth and maturity earlier than usual came to be obtained. 

　Land and deep sea tend to be apparently considered without relation. However, many in this way blessings for man or a living thing are brought about in practice. It is unseparable, even if it cuts as it seems that all the living things were produced from the sea. 

reference

• http://ja.wikipedia.org/wiki/海洋深層水
• http://www.shinsousui.com/
• http://www.npojadowa.net/
• http://www.pref.kochi.lg.jp/~sinsosui/index.html
• http://deepsea-shop.jp/about_dsw.html

The submarine in the world

　In this topic, I write about the submarine in the world.

　Let's explore from the original purpose of a submarine first. Originally, with the submarine, it was used as a kind of a warship. The power was based on human power. As it was called from there the air engine, the electric motor, and a gasoline engine and an electric motor, it has progressed through long history. the background -- a color -- the negative history of war exists deeply. Use any the submarine has expanded the width of the people's activity greatly. 

　Here, "Deep-submergence vehicle" which is a submarine used for the purpose of "investigation of deep sea" is introduced.

NAUTILE of france 

　Right picture is deep-submergence vehicle of France,  "NAUTILE". (NAUTILE is a thing with the mind of a "nautilus") This was made in 1984. It can get in this ship to three persons. Full length is 8.0 meters and width is 2.7 meters. It is the features 120 hours and that very long time diving can be carried out. Even a depth of 6000 meters serves as a range which can be dived now. It visited by trench investigation also to Japan in 1985. It is for carrying out cooperative study. The plan is called a "KAIKO plan." Plate tectonics with the close relation with an earthquake was studied. It achieved big success. 

ALVIN of USA

　Left photographs are U.S. deep-submergence vehicle and "ALVIN". It was applied for the first time on June 5, 1964. This is also a ship of three-person riding. The pilot is the rule which one person and a scientist declare themselves two. I can stay 4500 meters of deep sea till 9 hours now. ALVIN is famous also for having conducted diving investigation of the Titanic number. 

　Please look at the image of the deep sea living thing of the Gulf of Alaska photoed by this ALVIN. 

　How was it? A deep sea living thing and environment have projected this animation clearly, and it is a very worthy animation. ALVIN has managed thing diving 4000 times or more. Expectation becomes increasingly large still more at this ship of active service.

SHINKAI6500 of Japan

　Then, let's see representation deep-submergence vehicle of Japan of our country. The name of this ship is called "SINKAI6500." It has been considered as submergence vehicle of three-person riding under which it can go in the world most deeply till recent years. It can dive to the depth of 6500 meters. As for this, full length has 9.6 meters and a 2.7-meter-wide body. Extraction of the living thing of deep sea, a sedimentary rock, and hot water is also possible. Bottom time is about 9 hours.


　This SHINKAI6500 has achieved many success until now. The remarkable result in recent years is investigation in the focus ocean space of the Great East Japan Earthquake. The big crack was checked to what and the seabed. This is discovery indispensable to future Japan's research. In addition, discovery of a hydrothermal venting hole, discovery of a new living thing, etc. are only the investigations which repaint history. What kind of investigation is advanced from now on? It cannot let cooperation of each country out of sight.

reference

• http://ja.wikipedia.org/wiki/潜水艦#.E7.99.BA.E9.81.94.E5.8F.B2
• http://www.jamstec.go.jp/j/kids/tazunete/003/index.html
• http://www.jamstec.go.jp/j/museum/umihoshi/learning/index2.html
• http://karapaia.livedoor.biz/archives/51490074.html
• http://www.jamstec.go.jp/shinkai6500/research_history/

Japanese most deep point

The deepest sea in Japan is introduced with this report.


　The deepest sea in Japan and it are Izu-Ogasawara Trench. It is in the position which went Chiba Prefecture south. It is the trench made when the Pacific plate sank in the Philippine Sea Plate. If the form is very fierce and is compared, that it seems that the dragon is extended from the Japanese Islands will characterize it.
　First, let's see and go from the full length of Izu-Ogasawara Trench. In north, south is extended from Boso Peninsula to the method of the Ogawawara Islands southeast, and the full length can also be about 850 km. If it starts from Tokyo, and you follow land 850 km, it will arrive at Shimane Prefecture in the Chugoku district. Probably, the length of this trench is known now well.
　Next, it is the depth that is worrisome. It is not as the No.1 trench of the world introduced last time and Mariana Trench. However, also in this Izu-Ogasawara Trench, the deepest part can also still be 9780 meters. If Mt. Fuji which is the No.1 mountain of Japan is made reverse, they can also be about 2.5 pieces. This depth is the fifth in the world following Mariana Trench (10924 m), Tonga Trench (10800 m), Philippines Trench (10057 m), and Kermadec Trench (10047 m). Moreover, the name of a trench of Japan is on the list of trenches with the Japan Deep, the main Ryukyu trench, in others.

　It is apprehensive the occurrence of a big earthquake in Izu-Ogasawara Trench in recent years. This crisis cannot be escaped on the characteristic of being generated from two or more plates. However, feeling uneasy is that not direct damage but the massive tsunami by an earthquake occur.
　The earthquake of magnitude 8 levels has actually generated Izu-Ogasawara Trench by comparatively high frequency. Furthermore, if it is magnitude 7 levels, in the near thing, it will have generated near Chichi island in 2010. Since it is in the state always pushed on many plates, it is not wonderful even if an earthquake big when occurs. By the Great East Japan Earthquake which occurred on March 11, 2011, it can be said that the possibility improved markedly.

　When the earthquake has actually occurred in Izu-Ogasawara Trench now, what kind of damage will be brought about concretely? The length of the fault is expected to be 1000 km and 200 km in width. The size of this scale is equal to the dust earthquake and the Sumatra earthquake which occurred in the previous year.  If such an earthquake occurs, it will suffer tsunami damage not only with Japan but serious China, Indonesia, Hawaii, and other countries in the Pacific Ocean.

Great East Japan Earthquake: March 11, 2011

　Japan is the No.1 earthquake power of the world. Existence of this trench will continue to be concerned closely. What will happen to seismic activity of Japan from now on? It can call it an important point. 

reference

• http://detail.chiebukuro.yahoo.co.jp/qa/question_detail/q1463380969
• http://www1.kaiho.mlit.go.jp/KAIYO/sokuryo/D1/D1.htm
• http://kotobank.jp/
• http://0dt.org/001068.html

Deep points and the Ocean

　

　Many things called a trench exist in this large sea.A trench refers to the depression contour of long and slender deep sea. Almost all trenches are 6000 meters or more in depth. Those length amounts to thousands of km from hundreds of km.  It is so huge that imagination is also impossible from a usual life. It seems that there are many places where seismic activity is often active near a trench.
　One and you have a question here. Do you know the deepest trench in the world?
　A lower photograph is the trench. In which trench does it really understand?

　Yes, it is Mariana Trench.  It turns out that the place which looks black especially with a photograph has become depressed deeply. This falcate trench is the No.1 trench of the world.
　Mariana Trench is about 2550 km in full length trench.  It is located in southeast from Ogawawara Islands in Japan.  The length is straddling north latitude 12 degrees from north latitude 25 degrees.  Not only the depth but this full length could be called world top class.

　The depth of water of Mariana Trench is about 10,920 meters. Even if it turns the mountain of the highest peak in the world, and Everest, it is too difficult at all. Is the size of the earth realized?  Moreover, the deepest part of the Mariana Trench southwest end is also called alias Challenger Deep. The name of this Challenger Deep is coming from the origin that the British "challenger No. 8" discovered these deeps in 1951.
　Since there were one and a picture which the depth of Mariana Trench understands well here,it introduces. The black point that it is visible to the upper part lonely is a size of a ship.

　It is so deep that it is fearful.  Light does not arrive at all, either, so that it may understand by this picture.  Furthermore, it is with great force deeper than other deep ocean locations. Therefore, in the Mariana Trench deepest part, it is said that a greatly different ecosystem from the usual sea is realized. Although it is still more in the middle of investigation, what kind of living thing really lives in such severe environment?

　Information that the interesting living thing was found in this Mariana Trench recently is contained.
The name of the living thing is "Xenophyophore". 

Xenophyophore

In spite of a monadic, what and its length are about 10 cm. It is the greatest category also in the already found monadic. That this Xenophyophore was found in the Mariana Trench depths shows that the enough room for research is in deep sea. 

　Since it says that such a monadic was found, a certain thing can be guessed. It is saying that it exists in neither land nor a shoal, and that a strange living thing exists. All the living things are considered to have accomplished evolution from the monadic in long history. If it becomes, this monadic can greatly serve as a subject of research.


The depth of Mariana Trench is wrapped in the mystery of the earth.


reference

• http://www.godac.jp/top/education/deepsea.html
• http://blog.livedoor.jp/yu_ps13/archives/51292224.html
• http://makehp.yossy-m.net/blog/?p=429
• http://www.nationalgeographic.co.jp/