Sentences with phrase «many ocean organisms»

Pollution in the ocean directly affects ocean organisms and indirectly affects human health and resources.

Scientists are finding that, in general, larger ocean organisms such as fishes have less tolerance for temperature change than the microorganisms they consume, such as phytoplankton.

These bacteria may «fix» as much nitrogen as all previously known ocean organisms combined.

«Ancient marine algae provides clues of climate change impact on today's microscopic ocean organisms.»

The only time period that remotely resembles the ocean changes happening today, based on geologic records, was 56 million years ago when carbon mysteriously doubled in the atmosphere, global temperatures rose by approximately six degrees and ocean pH dropped sharply, driving up ocean acidity and causing a mass extinction among single - celled ocean organisms.

All ocean organisms depend on phytoplankton either directly or indirectly.

In some areas, the heat build - up is forming a dense layer of oxygen - poor surface water, which affects ocean organisms like plankton.

Quick identification and containing of ocean pollution is crucial for the health of ocean organisms and humans too.

Also true is there exist heat - tolerant corals, corals that are regularly exposed to (and routinely survive) the extreme stress of finding themselves out in the tropical air at low tide, and many ocean organisms that live through large swings in pH through tidal cycles.

upwelling wind blows, moves water away, causes new water to rise up to replace it brings up tiny ocean organisms, minerals, and other nutrients from the deeper layers of the water.

brings up tiny ocean organisms, minerals, and other nutrients from the deeper layers of the water.

In some areas, the heat build - up is forming a dense layer of oxygen - poor surface water, which affects ocean organisms like plankton.

Perhaps the ocean organism most vulnerable to temperature change is coral.

of the oxygen that's currently being put into the atmosphere by ocean organisms, we may not manage to burn all that coal that fast.

In some ancient times when CO2 levels were very high, ocean organisms with shells based on silica replaced those with shells based on calcium.

Not exact matches

Cross says that as the oceans absorb more carbon dioxide, the more acidic the water becomes, which hurts marine life and makes it harder for organisms to grow skeletons and build shells.

About 600 million years ago, in the Ediacaran period, multicellular organisms began to appear in the oceans.

Whitehead did not speculate on the precise location of memory within the animal organism, but the most plausible extension of his theory suggests rather that memories are maintained for the soul by other occasions, thereby freeing the soul for its adventure into novelty.2 The way in which the conscious ego draws upon the ocean of unconscious feeling which sustains it may well reflect the way the soul draws upon other living occasions.

At this size it is small enough to be ingested by every single organism in the world's oceans — animals as small as krill and salps (plankton feeders) right up to the great Blue Whale.

We don't know how the same organisms got to be in both places, because South African crust has not seen ocean water in two - and - a-half billion years.

We started finding the same organisms that people were reporting from deep - sea hydrothermal vents [where hot, mineral - laden fluid flows through volcanic rock into the ocean from deep within the Earth].

Concentrations of selenium, a vital element for many organisms at the base of today's ocean food chain, dropped substantially in seawater in advance of three of Earth's largest die - offs, a new study suggests.

And then there is what I regard as Cassini's most profound discovery of all: at the south pole of the moon Enceladus, more than 100 geysers spouting from an underground ocean that could be home to extraterrestrial organisms.

Aside from myriad practical applications, these organisms could exemplify the kinds of life that exist in environments where little or no oxygen exists, such as the deep ocean or under the Martian surface.

Ocean seagrass meadows reduce bacteria unhealthful to humans and marine organisms by up to 50 %, a new study shows, and they also decrease the likelihood of disease in coral reefs by half.

Foraminifera, small single - celled marine organisms, form their shells in concert with the ocean's temperature and chemistry.

Along with phosphorus accumulation came a global chemical chain reaction, which included other nutrients, that powered organisms to pump oxygen into the atmosphere and oceans.

«Ocean acidification can affect individual marine organisms along the Pacific coast, by changing the chemistry of the seawater,» said lead author Brittany Jellison, a Ph.D. student studying marine ecology at the UC Davis Bodega Marine Laboratory.

Roughly 800 million years ago, in the late Proterozoic Eon, phosphorus, a chemical element essential to all life, began to accumulate in shallow ocean zones near coastlines widely considered to be the birthplace of animals and other complex organisms, according to a new study by geoscientists from the Georgia Institute of Technology and Yale University.

At that time, there were lots of nutrients in the ocean water there, because small organisms called diatoms, which have silica shells, were able to thrive.

About 5,300 previously unknown organisms have already been identified, and every new sighting is logged into the census's freely accessible Ocean Biogeographic Information System (www.iobis.org), which boasts more than 13 million observations of 80,000 species.

Organisms that surprisingly survived the harsh 7,000 - kilometer journey across the Pacific Ocean on 634 items of tsunami debris ranged from 52 - centimeter - long fish (a Western Pacific yellowtail amberjack) to microscopic single - celled protists.

To measure the impact, people go out in ships and drill holes in the ocean floor, where shells of marine organisms have settled throughout geologic history.

Rising methane could have churned the oceans, suffocating aquatic organisms, and flooded into the atmosphere, triggering a worldwide hot spell.

These organisms were ocean dwellers that lived during the Ediacaran period, between 635 and 541 million years ago.

Cycles that drive changes in the ocean's chemistry and organisms take place over hours, days, seasons, years and even decades — timescales NEPTUNE can track.

«Since no organisms living in the ocean today would have time to adapt to these warmer conditions, many will either go extinct or migrate away from the western Pacific, leaving this area with much lower biodiversity.»

In the oceans, they contribute to the «great garbage patches» and are ingested by many organisms, from protozoa to baleen whales.

«This provided a slow trickle of food for organisms living near the ocean floor which enabled them to survive the mass extinction, answering one of the outstanding questions that still remained regarding this period of history.

Dune - shaped mountains display 520 - million - year - old gray limestone, formed from the remains of marine organisms that once filled a shallow ocean covering the western United States.

In a second piece, Wise explained how a marine ecologist is using robots (with casings made from surplus fire extinguishers) to mimic the motions of microscopic marine life, including crab larvae, as they move through ocean waters during their development into adult organisms.

Ocean heat waves are happening more frequently and lasting longer, too — a potential major threat to coral reefs and other marine organisms, according to new research.

The team were able to draw these conclusions by analysing new data from the chemical composition of the fossilised shells of sea surface and seafloor organisms from that period, taken from drilling cores from the ocean floor in the South Atlantic.

Sea spray is a complex mixture of inorganic salts, organic material present in the ocean and living organisms such as bacteria, viruses and fungi.

Like the dinosaurs themselves, giant marine reptiles, invertebrates and microscopic organisms became extinct after the catastrophic asteroid impact in an immense upheaval of the world's oceans, yet deep sea creatures managed to survive.

In 1998, a bot known as ROPOS («Remotely Operated Platform for Ocean Science») sawed a black smoker free from the sea floor and hauled it up to allow scientists to examine its structure and unique organisms.

and Organisms had about 50 million years to get good at making hard materials in the ocean based on, you know, trial and error and using what's in their environment, and we don't have 50 million years.

The organisms likely survive using mechanisms similar to the ever - increasing parade of creatures that have been discovered living in the total darkness of hydrothermal vents at the bottom of the ocean, deriving energy from minerals in seafloor rocks.

Phytoplankton, tiny photosynthesizing organisms that bloom in the nutrient - rich waters of the Southern Ocean, suck up carbon dioxide from the atmosphere.

Marine biology is the scientific study of the plants, animals, and other organisms that live in the ocean.