Sentences with phrase «of ocean organisms»

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

Not exact matches

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.

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.

«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.

«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.

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.

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.

Great Barrier Reef Billions of minuscule marine organisms called coral polyps built this World Heritage Site; now warming oceans are slowly killing it.

SeaWiFS data show that photosynthesizing organisms have declined in certain ocean gyres (large - scale surface current patterns), said Jim Yoder, a scientist at the Woods Hole Oceanographic Institution, in a NASA article commemorating the end of SeaWiFS's mission.

Scientists have found that about half of the organisms at Cuatro Cienegas are most closely related to marine life, even though the oases here have not been in contact with the ocean for tens of millions of years.

The oceans of around 1 billion years ago, the researchers argue, were topped by a thin oxygenated layer populated with photosynthetic organisms and heterotrophic bacteria.

That began to change last year with the discovery of DNA sequences for an organism that no one has ever actually seen living near a deep - sea vent on the ocean floor.

When that edge moves off the continental shelf into deep open ocean waters, the productivity drops off and the marine organisms that feed larger wildlife are out of reach, scientists say.

Organisms, including the single - celled bacteria living in the ocean at that early date, need a steady supply of phosphorus, but «it's very hard to account for this phosphorus unless it is eroding from the continents,» says Aaron Satkoski, a scientist in the geoscience department at the University of Wisconsin - Madison.

Living organisms could use these oxidizing chemicals to burn fuels such as iron or methane seeping up from the rocky bottom of Europa's ocean.

The most frigid polar regions and the darkest depths of the ocean are home for a few organisms that like a good chill.

What we see as a mere light in the sea is a phenomenon occurring in nearly all the organisms living in the seas and oceans, from bacteria to large fish, and which impacts the behaviour and dynamics of the entire system.

By accumulating the understanding of the ecology of small marine organisms, she hopes to deepen an understanding of the spread of life in the entire ocean.

The team is trying to understand life history traits of benthos at the initial stage and the influence of ocean currents in order to find out how these organisms expand their habitat and respond to environmental changes.

«Biological oceanographers have speculated that early life stages of marine organisms might be particularly sensitive to ocean acidification, but the underlying mechanisms remain unknown for most species,» says David Garrison, program director in NSF's Division of Ocean Sciences, which funded the research through an ocean acidification competiocean acidification, but the underlying mechanisms remain unknown for most species,» says David Garrison, program director in NSF's Division of Ocean Sciences, which funded the research through an ocean acidification competiOcean Sciences, which funded the research through an ocean acidification competiocean acidification competition.

Benjamini identified the tiny round shells of foraminifera and fragments of red coralline algae; these marine organisms suggested that the ocean, rather than a river or a flash flood, had been involved.

Further analysis of these organisms may shed light on how the fauna living at hydrothermal vents to the east and west of them, in the Atlantic and Pacific oceans, are genetically related.

We know life evolved in the oceans... but many of the organisms we studied are uncharacterized, little known to science, and we have a lot of work to do understand where these organisms fit in in our understanding of life.»

«Although tiny, these organisms are a vital part of the Earth's life support system, providing half of the oxygen generated each year on Earth by photosynthesis and lying at the base of marine food chains on which all other life in the ocean depends.»

But they conclude that marine organisms with skeletons made of high - magnesium calcite may be especially susceptible to ocean acidification because this form of calcium carbonate dissolves more easily than others.

Given the obvious concerns for human ecological health — in terms of climate change, heavy metal toxification, indoor air quality, air pollution, plastics in the oceans, and things like that — there will be a large - scale trend to buildings that start to act like organisms.

Chemical signatures of the ocean water the organisms lived in are locked into the composition of their shells, and researchers can analyze them for evidence of past water temperatures and other oceanographic conditions.

It's sinking from the weight of organisms sticking to it or in animal feces and getting buried on the ocean floor, Law says.

The results, says Mick Follows, associate professor in MIT's Department of Earth, Atmospheric and Planetary Sciences, suggest that mixotrophic organisms may make the ocean more efficient in storing carbon, which in turn enhances the efficiency with which the oceans sequester carbon dioxide.

In a new study recently published in the journal Global Biogeochemical Cycles, scientists of Kiel University (CAU) with colleagues from GEOMAR Helmholtz Centre for Ocean Research Kiel and international partners from the USA, New Zealand, and Great Britain studied marine benthic shell - forming organisms around the world in relation to the chemical conditions they currently experience — with a surprising result: 24 percent, almost a quarter of the analyzed species, including sea urchins, sea stars, coralline algae or snails, already live in seawater unfavorable to the maintenance of their calcareous skeletons and shells (a condition referred to as CaCO3 - undersaturation).

Today in Science he and his colleagues report that they've used their technique in conjunction with metagenome sequencing, in which researchers sequence vast swaths of genome data from unknown organisms in the ocean and soil.

As the oceans absorb increasing amounts of carbon dioxide from the atmosphere, ocean acidification is expected to make life harder for many marine organisms, especially shellfish and other animals with shells or skeletons made of calcium carbonate.

These more substantial organisms, compared to smaller and lighter plankton, were more capable of sinking to the ocean floor, as carbon - containing detritus.

This study also provides clues of how ocean acidification may impact marine organisms.

They found the same pattern occurring across continents and various ocean locations — as well as across various levels of productivity and diversity — all of which showed shifts in the way symbiotic organisms interacted.

The researchers found that organisms from each ocean basin had its own unique threshold for the level and type of stressor it could tolerate.