Sentences with phrase «seafloor for»

Methane was seeping from the seafloor for thousands of years following the retreat of the Barents Sea ice sheet, shows a groundbreaking new study in Nature Communications.

Scientists are in the early stages of building a fiber optic network on the seafloor for observing, in real time, deep - sea hydrothermal vents — places where super-heated water and minerals spew from Earth's crust offering clues about how life on the planet may have began.

This decline in diversity is particularly likely as these groups of organisms tend to rely heavily on detrital matter sinking to the seafloor for their energy requirements (Danovaro et al., 2008; Smith et al., 2008; Jones et al., 2014).

That suggests the tools let them gain access to a new food source, perhaps by protecting their rostrums as they sift the seafloor for bottom dwellers.

In a previous study, Melanie Bergmann analysed photographs from the deep Arctic seafloor for signs of plastic, glass and other types of litter.

This past June scientists at NASA's Stennis Space Center in Mississippi reported that the eyewall's extreme conditions can stir up ocean currents 300 feet below the surface, disrupting sediment and organisms on the seafloor for as long as a week after the storm subsides.

Half a billion years ago, a creature slithered across the seafloor for the first time.

Teams of marine scientists are towing nets to scoop up plankton, tagging large predators to track their migrations, sequencing the DNA in seawater to hunt for microbes, and trawling the seafloor for bottom dwellers.

Not exact matches

Oceanographers have mapped the seafloor and tracked endangered marine species for decades using autonomous underwater vehicles, or AUVs.

Octopus - inspired propulsion system; image courtesy of Fraunhofer IPA An octopus spends most of its time crawling around on the seafloor looking for dinner — and trying to avoid becoming it.

«We talk about finding, searching for signs of life on some of these ocean worlds, and in particular these geologically active ocean worlds with rocky seafloors like Europa.»

He called it Tektite, for meteors that survive their fall through the atmosphere, crashing into the ocean and leaving pearl - like fields of debris along the seafloor.

So he went looking for entrepreneurial solutions to creating underwater habitats: school bus — size seafloor shelters that give aquanauts a pressurized, climate - controlled base, just as the International Space Station gives astronauts a hospitable home in orbit.

At the time, scientists already had developed remotely operated vehicles that could roam the seafloor, and placed instruments on the ocean's bottom that could record uninterrupted measurements for years.

It takes several hours to prepare the submersible for the dive, and after seven to eight hours on the seafloor, another round of work is needed to prepare the sub for its next -LSB-...]

The key for Koblick is that archaeology could underwrite new habitats, providing a money model for bases on the seafloor.

But naturally as we explore more environments (the deep seafloor, for example), we discover organisms we have never encountered.

For this study, video technicians searched the VARS database to find every video clip that showed debris on the seafloor.

The findings are relevant to assessing the possible ecological impacts of seafloor mining — scientists must account for the uniqueness of local geology and chemistry and not assume that a common supply of animal larvae will colonize and restore neighboring habitats.

You can probably recognize this one as a jellyfish, but this one is something of a recluse — it forages for crustaceans near the seafloor.

Grey whales feed on the seafloor at depths of up to 50 metres, and rely heavily on the shallow regions in Alaska's Bering Sea for food.

Some scientists plan to assess the stability of the remaining ice shelf, others will map the region's seafloor topography and still others want to study the newly exposed ecosystem that's been hidden from the sun for up to 120,000 years (SN Online: 10/13/17).

Scientists believed that much of it got buried on the seafloor to stay there for centuries or millennia.

We've reached the end of our New Mexico road trip, and we have scoured the side of the road for long - dead sea creatures, found a shark tooth in an ancient seafloor and tracked long - dead worms across fossilized mud.

For days or even weeks at a time, these guns send a volley of ear - shattering sound through the ocean to impact the seafloor every ten seconds or so.

Going beyond this specific demonstration, if this approach, known as acoustic seafloor geodesy, proves to be robust in the long term (in this case, three to five years are planned, within the limits of the autonomy of the batteries), it could be included within a permanent underwater observatory as an addition to other observations (seismology, gas bubble emission, etc) for in situ real - time monitoring of the activity of this particular fault, or of other active submarine faults elsewhere in the world.

A research group comprising Project Researcher Yusuke Yamashita, Assistant Professor Tomoaki Yamada, Professor Masanao Shinohara and Professor Kazushige Obara at the University of Tokyo Earthquake Research Institute and researchers at Kyushu University, Kagoshima University, Nagasaki University, and the National Research Institute for Earth Science and Disaster Prevention, carried out ocean bottom seismological observation using 12 ocean bottom seismometers installed on the seafloor of Hyuga - nada from April to July 2013.

For decades, sensors will gather data on water chemistry, currents, photosynthesis, animal activity, and seafloor eruptions and earthquakes.

UCSC research scientist Patrick Fulton was on board the research vessel Kairei, operated by the Japan Agency for Marine - Earth Science and Technology (JAMSTEC), for the retrieval of the string of pressure and temperature sensors that was installed across the fault zone at about 800 meters beneath the seafloor.

A day after the administration released the Hurricane Sandy Rebuilding Task Force progress report, three U.S. federal agencies have announced plans for remapping parts of the East Coast, where Hurricane Sandy altered seafloors and shorelines, destroyed buildings, and disrupted millions of lives last year.

«More «losers» than «winners» predicted for Southern Ocean seafloor animals.»

The seafloor animals of the Southern Ocean shelf have long been isolated by the deep ocean surrounding Antarctica and the Antarctic Circumpolar Current, with little scope for southward migration.

What they were searching for are signs, like those seen along the San Andreas, that indicate how much the faults have slipped over time and whether some of that slippage caused some of the seafloor to thrust upwards.

Now, several research groups aim to assess the stability of the remaining ice shelf, map the region's seafloor and study a newly exposed ecosystem that's been hidden from the sun for up to 120,000 years.

Analyses of a recently discovered type of hot vent ecosystem on the seafloor suggest new possibilities for how life evolved

This indicates that the deep seafloor may be the ultimate sink for marine litter,» Bergmann suggests.

For more than two decades, scientists studying hydrothermal circulation in the water under the seafloor have assumed that the flow is relatively stable.

Methane - producing microbes under the seafloor may have set the stage for catastrophe, yet again.

The selective extinction of large - bodied animals could have serious consequences for the health of marine ecosystems, the scientists say, because they tend to be at the tops of food webs and their movements through the water column and the seafloor help cycle nutrients through the oceans.

Researchers have been studying this process in a concentrated effort 100 kilometers off the coast of Oregon, along a dumbbell - shaped promontory called Hydrate Ridge for the icy deposits that virtually pave the seafloor there.

Seals diving for their dinner near Antarctica have surfaced with an extra morsel: information, gathered by electronic tags on the animals» heads, about the shape of the seafloor there.

It is at the base of the food chain for these seafloor oases.

And the seals do it all for a fraction of the cost of traditional seafloor mapping done from ships.

For the first time, this current study delivers a «holistic» view of the effects of increasing CO2 concentrations on the seafloor.

Jun - Yuan Chen of the Nanjing Institute of Geology and Paleontology and his colleagues collected and studied samples of Vernanimalcula guizhouena, a microscopic animal that probably moved along the seafloor sucking in bacteria for food.

«I would argue that there's zero evidence for that,» says Gerald Dickens, a leading expert on seafloor hydrates and their role in climate change.

But Erwin Suess of the Research Center for Marine Geosciences (GEOMAR) in Kiel, Germany, and his colleagues have found a shortcut by which methane zooms from the seafloor to the sky.

The data showed them that the landward seafloor in the trench area slipped as much as 50 metres horizontally, said Yasuyuki Nakamura, Deputy Group leader in JAMSTEC's Center for Earthquake and Tsunami Structural Seismology Group.

The current isn't much (about 30 milliwatts from an electrode the size of a manhole cover), but it flows indefinitely, and for free — ideal, he suggests, for running low - power seafloor devices, such as ocean - monitoring instruments.

Most important, the work simulated the movement of dye — not viscous oil — injected in the upper layers of the ocean — not the deep seafloor — for a total of two months — not the ongoing no - end - in - sight disaster.