Deep Sea Octopus Nat Geo HD Doc, Coral Reef at Amazon River Mouth, Ocean Beauty & Mysteries

Sea Monsters-Octopus ( Deep Ocean )-Nat Geo Documentary (HD 1080p

This documentary looks at the Enteroctopus, an octopus genus, many of whose members are sometimes known as giant octopuses. This full documentary goes in search of Enteroctopus, a genus of generally temperate octopus. Members of the genus Enteroctopus are characterized by their large size and are often known as the giant octopuses. The member of this genus that best embodies the common name “giant octopus” is Enteroctopus dofleini, which holds the record of being the world’s largest octopus based on direct measurements of a 71-kg (156.5-lb) individual weighed live.

Enteroctopus dofleini, also known as the giant Pacific octopus (GPO) or North Pacific giant octopus, is a large marine cephalopod belonging to the phylum Mollusca, and genus Enteroctopus. Its spatial distribution includes the coastal North Pacific, along California, Oregon, Washington, British Columbia, Alaska, Russia, northern Japan and Korea. It can be found from the intertidal zone down to depths of 2,000 m (6,600 ft), and is best adapted to cold, oxygen-rich water. It is arguably the largest octopus species, based on a scientific record of a 71 kg (156 lb) individual weighed live. The alternative contender is the seven-arm octopus (Haliphron atlanticus) based on a 61 kg (134 lb) carcass estimated to have a live mass of 75 kg (165 lb). However, a number of questionable size records would suggest E. dofleini is the largest of all octopus species by a considerable margin.

Enormous Coral Reef Discovered at Amazon River Mouth

dnews-files-2016-04-enormous-reef-amazon-river-670-jpgAt the Brazil–French Guiana border, where the Amazon River joins the Atlantic Ocean, the muddy waters have been hiding a spectacular secret. A team of scientists reported that they discovered a coral reef there that stretches for 600 miles.

The finding was completely unexpected. University of Georgia professor of marine sciences and oceanography Patricia Yager wanted to study how the Amazon River plume affects the ocean’s absorption of carbon dioxide so she connected with Brazilian oceanographers, including senior scientist Rodrigo Moura, The Atlantic reported.

They were sharing the river vessel Atlantis when Moura mentioned looking for reefs, citing researchers who found fish in the late 1970s indicating such biodiversity might be under the water. “I kind of chuckled when Rodrigo first approached me about looking for reefs. I mean, it’s kind of dark, it’s muddy—it’s the Amazon River,” Yager told The Atlantic’s Robinson Meyer.

Coral reefs aren’t usually hard to spot: They tend to be located in clear tropical waters. But the Amazon River is so opaque in this area that the scientists needed to do a dredge, scooping up samples from the bottom habitat. With help from an old dredge shipped in from the University of Washington, the team hauled in fish, stars, sponges, and yes, coral. They were stunned.

While the biodiversity varies from north to south, the coral appears to cover more than 3,600 square miles of ocean floor between French Guiana and the Brazilian state Maranhão. The team just published their findings in the journal Science Advances. Next, they want to complete a map the reefs. Meyer called the coral another jewel in the Amazon River’s crown.

Given recent news that the Great Barrier reef coral is experiencing the worst bleaching ever, it was briefly heartening to know there’s a bit of coral left that humans haven’t decimated.

Yet hiding in plain sight hasn’t helped the Amazon River coral. The scientists point out in their paper that, in the past decade, 80 exploratory blocks for oil drilling have been acquired and 20 are already producing right in the area they were studying. Protection, if it ever does come, may be too late to save this jewel from disappearing for good.

Yonaguni Underwater Pyramids, Yonaguni Island is located in the west of JapanYonaguni Island is located in the west of Japan, it is the western-most situated island in the country. Yonaguni became famous in the mid 80s, when divers discovered mysterious underwater rock terraces and pyramids with sharp corners. Scientists are inclined to believe that these pyramids were artificially created many years ago by an unknown civilization that disappeared from the face of the earth, but there are still many debates on this issue whether it is a natural phenomenon or the creation of mankind. If Yonaguni monument was created by man it will radically change the history of manking. The history of these underwater pyramids begins in 1986, when divers found strangely structured rock formations on the ocean floor.

The rocks were in the shape of pyramids and platforms. The pyramids are really huge. One of the biggest is 600 feet in width and 90 feet high. Divers found traces of processing and cutting on the stone blocks, which confirms the theory of scientists that the Yonaguni Monument is not a natural formation, but created artificially. Masaki Kimura – marine geologist from the University of Japan has been studying the underwater pyramids for more than 15 years. The scientist believes that this place was created more than five thousand years ago, but it was flooded 2,000 years ago during an earthquake…Read More…

Coco-Island diving with exotic fish amid beautiful coral reefs in tropical watersThe waters off Cocos Island in Costa Rica are a scuba divers dream and they are rich with a variety of marine life. The deep waters that surround the island, some 340 miles from the coast of Costa Rica, are teeming with rays, dolphins, turtles and, most impressively, large schools of sharks.

The coral reef that surrounds the island attracts a large variety of wildlife, which in turn, makes the waters the ideal hunting ground for sharks. Cocos Island, also known Cocos Island underwater diving with school of large hammerhead and other sharksas Shark Island, is home to Whitetip reef sharks, whale sharks and hammerheads. The scalloped hammerhead shark is the most common visitor to the island’s shores and, during the wet season (June- Oct), schools of hundreds of hammerheads can be seen in the waters. A truly spectacular sight and undoubtedly one of the underwater wonders of the world.

red-sea2-underwaterThe Northern Red Sea has been described as “the underwater Garden of Eden” and it is easy to see why. The stretch of water between Asia and Africa is home to some of the most beautiful coral reefs in the world and some of the most exotically coloured fish.

The Northern Red Sea covers 169,000 square miles and is home to over 70 species of hard coral, 30 species of soft coral and more than 500 different species of fish. The area is a hugely popular site with scuba divers, who are attracted by the chance of diving in the warm tropical waters, witnessing the beautifully colored coral reefs and spectacular assortment of exotic fish.