The ocean has always been the source of life on this blue planet, and no one can say what is in the whole ocean, and this most attractive place does not know how many people are fascinated. The search for the ocean has become an eternal task for mankind, but it depends on whether human beings themselves can live longer than the ocean.
Verne through the science fiction novel "Twenty Thousand Leagues Under the Sea" in a century and a half ago, has a very bold speculation and fantasy about the deep sea, it can be seen that more secrets in the ocean are mainly concentrated in the deeper sea, then today we simply talk about what is in the deep sea.
How deep is it called the deep sea?
The average depth of the ocean is about 3.7 kilometers, starting from the general depth of 100 to 00 meters of continental shed slope, the continental slope all the way down to a vast deep-sea plain. About 75% of the seabed is between 3 and 6 km deep, and only about 1% is deeper. The deepest waters are distributed in narrower trenches, most of which are related to the Pacific Island Arc, with the deepest known being the Mariana Trench at 11,034 meters.
Therefore, purely in terms of the depth of the ocean, the shallow sea is a relatively flat shallow sea outside the coast, and its water depth is between below the low tide line and the water depth of 200m. 200-2000M is semi-deep sea, deep sea refers to a vast area below 2000M, where there are endless treasures and imaginations.
A city sealed in dust at the bottom of the sea
In the historical records, there have been many more developed civilizations and cities, but many cities have disappeared without a trace, and some have sunk into the sea with the changes of the earth.
Danwich, United Kingdom
During the Middle Ages, Danwich, one of the ten largest cities in England, was a bustling fishing port city and was once the capital of East Anglia. The city of Danvich is built on a soft hydro-diagenetic foundation that is easily eroded by the huge local waves. In 1286, the city of Danvich suffered its first great blow. Rising tides and huge waves swept through the city's more than 400 shops and homes. Since then, the city of Danvich has slowly been destroyed by the sea and sunk to the bottom of the sea.
The ancient city of Heraklion and the ancient city of Eastern Canopas in Egypt
The ancient cities of Heraklion and East Kanopas in Egypt are now submerged in the sea. Around 500 BC, Heraklion and Eastern Canopas were once the bustling trading centers of Egypt and were important choke points for Greek ships to enter Egypt along the Nile. However, the two ancient cities are connected by canals and irrigation canals, as well as a nile tributary that no longer exists. Both cities were built on silt and sand on the banks of the river without any fixed supports and pile foundations. Whenever the Nile floods, the foundations sink and the flood gradually submerges the ancient city.
Port Royal, Jamaica
In the 17th century, Port Royal Jamaica was one of the important cities in the Caribbean, and it was also notorious for piracy and fornication. Port Royal was once considered "the most evil city on earth". Port Royal is roughly located at the entrance to Kingston Bay, Jamaica, and has a population of 10,000 at its peak. The local wealth came mainly from the pirate industry. The city disappeared not because of moral depravity, but because it was built on a sandbar and less than 1 meter above sea level at the time. In 1692, a huge earthquake shook the city to rubble. Two-thirds of the city sank into the bay, and the earthquake killed about 2,000 people.
The ancient city of Atlantis
All theories about the ancient city of Atlantis come from the ancient Greek philosopher Plato. In 360 BC, Plato vividly described in a book the details of the ancient city of Atlantis.
According to Plato, Atlantis was an island nation that existed about 9,000 years ago, larger than Libya and Asia Minor combined, and far from the Pillar of Hercules. In addition, Atlantis was a maritime power with a large population and a highly developed civilization. But then the country grew greedy and corrupt. Its armies conquered Egypt and North Africa, but were defeated by the ancient Greeks at the hands of the ancient Greeks at the hands of Athens. Then there was an unprecedented natural disaster on the island, and the entire island nation sank into the sea in one day and one night.
Rest in peace, never move the vault again
In the history of the conquest of the sea, countless large and small ships have been buried on the seabed and disappeared into the world. Some of them were shipwrecked with a staggering amount of precious goods such as gold, cultural relics, and works of art. Each shipwreck leaves a story, and they are like historical fossils, a vestige of civilization and ignorance.
Spanish Lady Atoka
In August 1622, the convoy of the "Lady of Atoka" returned to Spain from South America with treasure. As the convoy sailed to Havana waters, a hurricane swept through the convoy and the Lady Atoka soon sank to the bottom of the sea. The shipwreck, known as the largest treasure on the seabed, has 40 tons of treasure, including nearly 8 tons of gold and 500 kilograms of precious stones, all worth about $400 million.
USS Sussex, UK
In February 1694, the British sent a naval fleet with the Royal Sussex as its flagship to the Mediterranean to reinforce The British forces engaged in france there. According to the documents, the Sussex carried gold coins worth 2.4 billion pounds. However, no sooner had the fleet sailed to the Strait of Gibraltar than it was hit by a storm at sea and unfortunately sank to the bottom of the sea.
Spain San Jose
On May 28, 1708, a Spanish galleon, the San Jose, set sail slowly from Panama toward Spanish territorial waters, a heavily guarded ship laden with gold bars, silver bars, gold coins, gold-cast lampstands, and altarpiece jewels estimated to be worth at least $1 billion. But during the voyage, after being shelled by the then warring British fleet, the sea swallowed up the huge hull.
All that's left are weird-looking creatures
Deep-sea creatures can be divided into three categories according to their lifestyle: plankton, swimming and benthic. Among them, the number of plankton is the largest, the largest adult can reach 17 mm, generally living in the water depth of about 2000 meters, is the food of large fish or large polypods.
Benthic organisms gradually decrease with water depth, and water depths of 2000-3000 meters are their main living environment. There are mainly anemones, polychaetes, foraminifera, endpods, sea cucumbers, etc., of course, the appearance is not good.
Swimming organisms are mainly fish, and some of the missing links in bioethy can be found in the deep sea. It also includes some multipod mollusks such as squid and octopus, or shrimp and crab arthropods.
Nemichthyidae of the line eel family
Distributed in the Atlantic, Indian and Pacific Oceans, it lives in the middle and seafloor of the deep ocean, with an extremely elongated snout and a mature male whose jaw is shorter than the upper jaw and unable to close. The eyes are largely pectoral fins, with dorsal, and caudal fins connected together.
Shrew family Ophidiidae
Distributed in the Atlantic, Indian and Pacific Oceans, it lives in the deep sea middle and benthic, the dorsal fin is longer than the fin or the same length as the fin, and the anus and fins are located below the end of the pectoral fin. There are scales, and many species have spines on the gill lid. The largest species, Lamprogrammus shcherbachevi (Hispanic softweed), can grow up to 2 m.
Trachichthyidae
Distributed in the Atlantic, Indian and Pacific Oceans, it is a deep submarine habitat with orbital sphenoid bones and abdominal scales and scale ridges. Some species have illuminators and can grow up to 55 cm.
Synaphobranchidae
Distributed in the Atlantic, Indian and Pacific Oceans, it lives in the middle and bottom of the deep ocean, with gill holes below the body before the pectoral fins, and a few species with degenerated pectoral fins.
Neo-lanternfish Family Neoscopelidae
Distributed in the Atlantic, Indian and Pacific Oceans, it is a deep submarine habitat with flattened body sides, slender upper jawbone and a combination of three cartilages, without the underconement bone. The fin starts away from the dorsal fin. Some species have emitters.
Lanternfish family Myctophidae
Found all over the world, living in the middle and seabeds of the deep sea, the adipose fin is supported by a disc of cartilage with an underside bone. The fin starts below or slightly behind the dorsal fin. The head and body have whole rows or groups of illuminators, only one of which is not, and is an important predator of other carnivorous fish in the ocean.
Broad-throated fish in the family Eurypharyngidae
It is mainly distributed in the Atlantic, Indian and Pacific Oceans, and belongs to the deep seafloor, with small gill holes and a longer distance from the snout than from the anus. The mouth is very large, the teeth are small, and the pectoral fins are less pronounced.
Cetaceanaceae
It is mainly distributed in the Atlantic, Indian and Pacific Oceans, belonging to deep seafloor habitats, the epidermis has no scales, the eyes are small or degenerate into marks, there is no luminous device, and the body surface color is brown or orange-red.
And also......
These are only a very small part of the deep sea, or let it maintain this mystery, become a dream in your and my heart.
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But you take an umbrella when it's raining.
You say you like the sun,
But you hide in the shade when the sun is shining.
You say you like the wind,
But when it's windy you close the window.
That's why I'm afraid you'll say you like male sex too.
Because you connect "M.. era" did not pay attention to...