Sentences with phrase «on sea»

As these deposits piled up on the sea floor, rapid chemical changes released massive amounts of calcium, magnesium and phosphorus into the ocean.

Less than a millimetre across even with its spines, the juvenile form shown here has recently metamorphosed from the free - swimming larval stage and is beginning its new life on the sea floor, consuming organic material it scrapes from the surface of sand grains.

Researchers investigating the impacts of the Deepwater Horizon oil spill on sea turtles found that over 320,000 juvenile sea turtles from populations throughout the Atlantic Ocean were likely present in the northern Gulf of Mexico during the 87 - day oil spill.

These have provided insight into the roles that marine bacteria, archaea, viruses and eukaryotic microbes have as global primary producers that provide nutrition at the base of the food chain; remineralization (the transformation of organic molecules into inorganic forms); and the deposition of carbon on the sea floor.

Nor are we aware of factors such as whether or not equipment on the sea floor has been removed, when currently productive wells will be plugged, or what the total costs of the plugging operation will be.

Fletcher, who also is on the Sea Level Rise Committee, said that a dozen years ago, the Army Corps of Engineers dumped sand up to the top of his sea wall.

Having precise measurements of snow on sea ice is essential for NASA's upcoming Ice, Cloud, and land Elevation Satellite - 2 (ICESat - 2).

Aside from its impact on sea levels, weather and the economy, researchers say climate change is also an urgent public health concern, a matter that has been largely left out of the global climate conversation until recently.

The little bird in this photo is a juvenile emperor penguin, discovered last winter on sea ice in Antarctica's western Ross Sea.

The researchers suggest that venom may have been a defensive adaptation for snails to ward away competition for wiggly worms on the sea floor.

The addition of Svalbard will allow the mission to collect data on sea ice and snow in a scarcely measured section of the Arctic Ocean and its surrounding seas, along with measurements of a few glaciers in the Svalbard archipelago.

But most scientists presume that the environment on the sea floor is fairly stable: Temperatures hover near freezing, darkness reigns, and currents are languid and steady.

Other experts, though, say thinning ice sheets on land and calving ice shelves on the sea are reasons for alarm.

That plane was loaded with four hydrogen bombs when it went down on the sea ice near the Thule Air Base — 200 kilometers west of Camp Century — releasing radioactive elements including uranium and plutonium.

According to Sharp, the focus of the findings also marks an important milestone from the perspective of glaciology, which traditionally focuses on sea level as the most direct consequence of the impact of climate change on glaciers.

LAW ON THE SEA: As soon as passengers step onto a ship, they enter into the legal system of the owner's home country.

We eat a lot of animals that live on the sea floor, like crabs.

«They're serving as a sentinel of potential impact of oil on sea life.»

For more detailed information on sea - ice development in the Arctic and the latest sea - ice maps, please visit: http://www.meereisportal.de/en/

While the penguins primarily live on sea ice, they seek out ice - free land to breed and to incubate their eggs.

A unique video has captured a surprise swarm of red crabs on the sea floor at the Hannibal Bank seamount off the Pacific coast of Panama.

A working group known as PALSEA2 (Paleo constraints on sea level rise) used past records of local change in sea level and converted them to a global mean sea level by predicting how the surface of the Earth deforms due to changes in ice - ocean loading of the crust, along with changes in gravitational attraction on the ocean surface.

Scientists have decades of data documenting the bears, and Lentfer says that the bears» weights have been dropping over the past 25 years, indicating that they're having trouble hunting seals on sea ice.

Such were the backdrops for one of the most expansive studies on sea otters ever conducted.

A warming global climate may favor species that don't intimately depend on ice that floats on the sea to hunt or are more versatile in what they can eat as well as those able to thrive in higher temperatures.

The current paper combines previous findings with new work using visual surveys and path analysis to quantify the direct and indirect effects of sheephead on sea urchins and macroalgal assemblages.

Fishers catch the crabs by baiting tangle nets and spreading them on the sea floor so the crabs» legs get tangled in the mesh.

Others think that discards from fish nets add to the food available on the sea floor.

Elizabeth Griffin Wilson, a marine scientist with the international conservation group Oceana, points out that the new paper does not specifically investigate the effects of factors like fishing bycatch or habitat destruction, so she urges caution in comparing the human and natural toll on sea turtles.

Some species win, others don't Meanwhile, the loss of sea ice is making life harder for some marine animals, including polar bears and walruses, that rely on sea ice to hunt, breed and rear their young.

As a result of atmospheric patterns that both warmed the air and reduced cloud cover as well as increased residual heat in newly exposed ocean waters, such melting helped open the fabled Northwest Passage for the first time [see photo] this summer and presaged tough times for polar bears and other Arctic animals that rely on sea ice to survive, according to the U.S. Geological Survey.

Commonly found in the waters from Baja California to Point Conception — although they can sometimes be found as far north as Monterey Bay — sheephead feed on sea urchins, whose grazing habits can wreak havoc on community composition in kelp forests.

«Every few months we check in on sea level and try to get some idea as to what's happening and why.

«Based on the UN climate panel's report on sea level rise, supplemented with an expert elicitation about the melting of the ice sheets, for example, how fast the ice on Greenland and Antarctica will melt while considering the regional changes in the gravitational field and land uplift, we have calculated how much the sea will rise in Northern Europe,» explains Aslak Grinsted.

The sperm thus fertilize some of her eggs as she deposits them on the sea floor.

Specifically, they looked at two long - term warming and cooling cycles whose effect on sea turtles hadn't been investigated, one in the Pacific where Japanese turtles spend their formative years, and another in the Atlantic, where young Floridian turtles live.

Some researchers had suggested that these hills also record the influence of climate cycles on sea floor eruptions — but a new study finds this tectonically unlikely.

Reactions in and on sea - salt aerosol particles may have a strong influence on oxidation processes in the marine boundary layer through the production of halogen radicals, and reactions on mineral aerosols may significantly affect the cycles of nitrogen, sulfur, and atmospheric oxidants.

They suggested that long - term climate cycles could be modulating the amount of magma erupting on the sea floor.

The record - low winter maximum doesn't necessarily herald a record low end - of - summer minimum come September, as summer weather patterns have a large effect on sea ice area.

Global warming has caused big problems for polar bears, which depend on sea ice for access to the ocean so they can hunt seals and other prey.

These insights have been published today in Nature Scientific Reports, and show that the structure of marine life communities depends on depth and small - scale features on the sea floor.

In the tug of war, aerosols don't necessarily counter the impacts of climate change on sea ice (or the planet as a whole for that matter).

Over the past two decades my company has used imaging radar satellites to map oil on the sea surface for 70 million square kilometres of ocean.

«Marine snow fuels life on the sea - floor.»

Since the spill began, clean - up crews have deployed over a million litres of dispersant on the surface and are now testing the chemicals on the sea floor at the source of the leak.

The NOC's robot - sub, Autosub6000, used seafloor photographs to create the first landscape - scale map of marine snow patches in addition to a map of the abundance of life on the sea - floor (also known as biomass).

Existing documents from the Seabed Explorations excavation suggest that much vital scientific data still lies on the sea floor.

City - sized maps of terrain and life on the sea - floor have revealed that drifts of «marine snow» on submarine hillsides act as a source of food to fuel a higher biomass of marine life on the hills than on the flatter plains surrounding hills.

Some native seaweeds might be able to compete with the alien kelp but over centuries of cultivation Japanese farmers selected strains that grow easily on artificial and floating surfaces, giving it an advantage on sea walls and pilings.