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Tag: "seafloor" at biology news

Scientists discover new life in the Antarctic deep sea

...am from 14 research organisations investigated the seafloor landscape, its continental slope rise and changing water depths to build a picture of this little known region of the ocean. They found over 700 new species....

Study warns deep-sea mining may pose serious threat to fragile marine ecosystems

...nd potentially valuable organisms are at risk from seafloor mining scheduled to begin within this decade, says...ions—redirected prospecting and exploration of the seafloor into areas under national jurisdiction, where regulations are often weaker or non-existent. "The ...

Microbe fixes nitrogen at a blistering 92 C

...nitrate. Ocean water that percolates down into the seafloor can pick up enough heat from volcanism deep in the earth to cause the fixed nitrogen to revert to its gaseous form. Venting water hotter than 30 C contains very little nitrate so organisms in areas where the subseafloor temperatures are higher would ...

Extraordinary life found around deep-sea gas seeps

...ch vessel Tangaroa. Cold seeps are areas of the seafloor where methane gas or hydrogen sulphide escapes fro...ential seep sites using sophisticated sonar to map seafloor topography and substrate and to detect plumes of methane-enriched water. The scientists then lowered...

Deep-water discovery

...of the bottom but until researchers make it to the seafloor in the submersible they will not be able to determ... information available, Grasmueck compared typical seafloor exploration to arriving on the bottom of the Grand Canyon at night with a flashlight and then attemp...

Drug discovery team to explore newly discovered deep-sea reefs

...f the bottom, but until researchers make it to the seafloor in the submersible they will not be able to determ...information available, Grasmueck compares typical seafloor exploration to arriving on the bottom of the Grand Canyon at night with a flashlight and then attemp...

UMaine teams with fishermen to study affects of trawling on seafloor ecology

...e gradual increases in complexity and diversity of seafloor communities that have been protected from bottom trawling for two, four, and six years, Watling estimates that it will take roughly a decade for the surface-dwelling organisms to reestablish themselves, but cautioned that a full recovery of the habit...

Deep treasure to be found in Oculina Bank

...f revealed by a recently developed high-resolution seafloor map. The Oculina reefs, in depths from 250 to 300 feet, were built over the past thousand years or so by the delicate ivory tree coral Oculina varicosa, and include a series of spectacular pinnacles, mounds, and ridges that can grow up to100 feet hi...

Gene therapy may protect normal tissues during radiation retreatment for lung cancer

...scientists provide new evidence that suggests that seafloor organisms were either erased by the advance of ice...sh. Dr Thatje said: 'We show that during ice ages seafloor organisms emigrated to the deep sea - below the effects of the sediment slides and ice. From there, ...

Seafloor creatures destroyed by ice action during ice ages

...scientists provide new evidence that suggests that seafloor organisms were either erased by the advance of ice...sh. Dr Thatje said: 'We show that during ice ages seafloor organisms emigrated to the deep sea - below the effects of the sediment slides and ice. From there, ...

'Sinkers' provide missing piece in deep-sea puzzle

...estion, at least for animals that live on the deep seafloor off the coast of Central California. After analyzi...lable Far from being a deserted place, the deep seafloor is inhabited by a wide variety of swimming, crawling, and burrowing animals. Since plants cannot gro...

Secrets of the deep may hold key to life on other planets

...ronment research council grant to design and build seafloor fossilisation experiments to investigate this fundamental process. "We've already found a number of fossils, but don't know how they came to be there," said Dr Little. "Until we know more it's very difficult to interpret the fossil record we already ...

Discovering an ecosystem beneath a collapsed Antarctic ice shelf

...former ice shelf. The crew recorded a video of the seafloor at the end of its mission and only later discovere... in allowing the chemical habitat to thrive on the seafloor when it otherwise might not have established itself. Domack noted, however, that the calving of the...

Census of Marine Life explorers surprised by diversity, density of Arctic creatures

...gery under the ice, in the water column and at the seafloor of the Canada Basin. "Modern technology has opene...of UAF. "The imagery obtained of the mid-water and seafloor shows many life forms, such as soft bodied zooplankton, deep sea cucumbers and soft corals. The few ...

Hydrogen and methane provide raw energy for life at 'Lost City'

...from where anyone could have imagined. One massive seafloor vent was an unheard of 18 stories tall. And all we...d was named Lost City in part because it sits on a seafloor mountain named the Atlantis Massif and because researchers were using the Woods Hole Oceanographic I...

Oceans more vulnerable to agricultural runoff than previously thought, study finds

...ularly bring nitrogen and other nutrients from the seafloor to the surface, stimulating the rapid reproduction and growth of microscopic algae called phytoplankton. These algal blooms are natural events that benefit life in the gulf by generating tons of phytoplankton-a major source of food for larger organis...

Researchers discover underwater volcano

... to the volcano's existence when they profiled the seafloor of the Vailulu'u crater using multibeam mapping. Existing maps of the seafloor in the area gave little indication that this volcano existed. When sound beams were directed into th...

UCSB scientists probe sea floor venting to gain understanding of early life on Earth

...tions to this field of inquiry in their studies of seafloor hydrothermal fluid discharge into the Earth's ocea...ents (or scarps) created by vertical uplift of the seafloor during many events of fault slippage that produce frequent earthquakes. The scarps are cliffs that e...

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