Sentences with phrase «seafloor ecosystem»

More than half a billion years ago, this site held a seafloor ecosystem teeming with strange life forms.

Not exact matches

Headed toward an 8 F rise in warming Other such low - probability but high - risk scenarios mentioned in the report include ecosystem collapses, destabilization of methane stored in the seafloor and rapid greenhouse gas emissions from thawing Arctic permafrost.

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).

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.

Linse and her colleagues» urgent mission is to study seafloor that was in the shadow of the ice before the ecosystem changes.

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

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.

When seafloor animals die off, the energy in the ecosystem flows into microbes and jellyfish, a trend Jackson refers to as «the rise of slime.»

Scientists working off the California coast use chemical - sniffing probes, robotically driven subs, and seafloor - tethered temperature sensors to watch flows of lava pave over a once - thriving ecosystem at hydrothermal vents several kilometers below the ocean's surface.

Van Dover is a specialist in the ecology of deep - sea ecosystems that are powered by chemistry rather than sunlight, and Eggleston studies the ecology of organisms that live on the seafloor.

Lost Nucleotides Although Alexander S. Bradley's article «Expanding the Limits of Life» provides a fascinating account of the discovery of microbes in a previously unknown kind of hydrothermal vent ecosystem on the seafloor, it does not substantiate his claim that the findings hint that life may have originated in an environment like the Lost City hydrothermal vent.

Creatures that live on the seafloor play vital roles in marine ecosystems, but human - made noise can alter their behaviors.

Massive releases of methane from arctic seafloors could create oxygen - poor dead zones, acidify the seas and disrupt ecosystems in broad parts of the northern oceans, new preliminary analyses suggest.

At the other extreme, searing - hot ecosystems spring up around hydrothermal vents on seafloors.

Rich ecosystems exist on our own planet's seafloor, where volcanic rifts create hydrothermal vents.

These rare, relatively unexplored, deep - sea ecosystems — lively communities that spring up around dead cetaceans that sink to the seafloor — are called whale falls, or organic falls.

But Solan says that scientists first need to study how noise pollution reverberates through marine ecosystems, all the way down to the seafloor.

Those ecosystem changes slow decomposition that normally recycles plant and animal matter back into the ecosystem after organisms die, resulting in more organic matter accumulating in seafloor sediments, the researchers report February 10 in Science Advances.

The vents exist on the seafloor as much as 1.5 miles below the surface and support a rich ecosystem that includes fish, shrimp, tubeworms, mussels, crabs and clams.

The National Research Council described dispersant use in 2005 as «a conscious decision» to direct hydrocarbons to one part of the marine ecosystem, «decreasing the risk to water surface and shoreline habitats while increasing the potential risk to organisms in the water column and on the seafloor.»

Alaska corals form the basis of a rich and diverse undersea ecosystem on the otherwise mainly barren seafloor, and harbor a high abundance of coral species.

A recent study by Moffitt and colleagues of seafloor sediments from the end of the last Ice Age, around 10,000 to 17,000 years ago, revealed that Pacific Ocean ecosystems from the Arctic to Chile «extensively and abruptly lost oxygen when the planet warmed through deglaciation,» she said.

They damaged the seafloor and maimed coral and kelp forests — vital nursery grounds for fish and shellfish — crippling the habitat necessary for a healthy marine ecosystem.