Sentences with phrase «in marine food chains»

A related problem is the likely great increase of poisonings from microplastic / toxin interactions in marine food chains.

The krill, for instance, a very important link in marine food chain, feed on phytoplankton and in turn gets eaten by other organisms in the sea such as fish.

Forage fish are small, low trophic level fish that play a central role in the marine food chain.

Tuna are a top predator in the marine food chain, maintaining a balance in the ocean environment.

Also recognizes the need for more knowledge and research on the source and fate of microplastics and their impact on biodiversity, marine ecosystems and human health, noting recent knowledge that such particles can be ingested by biota and could be transferred to higher levels in the marine food chain, causing adverse effects; 6.

This photo taken on September 22, 2014, shows fish swimming through the coral on Australia's Great Barrier Reef (AFP Photo / William West) The world's oceans are teeming with life, but rising carbon dioxide emissions could cause a collapse in the marine food chain from the top down, researchers in Australia said Monday.

Not exact matches

SINGAPORE: McDonald's has introduced mobile phone lockers and table service at its flagship Marine Cove outlet in Singapore to help families rediscover quality time together, the fast - food chain said on Monday (Oct 16).

The very well - being of the northern food chain is coming under threat from global warming, land development, and industrial pollutants in the marine environment.

Furthermore, the team were able to calculate that the food supply in the ocean was fully restored around 1.7 m years after the asteroid strike, which is almost half the original estimates, showing that marine food chains bounced back quicker than originally thought.

He runs through a laundry list of factors that could amplify virus - driven disease mortality: fisheries shifting food chains, global warming, marine pollutant — triggered toxic algae blooms, marine pollution in the form of chemical contaminants, and endocrine disruptors altering the host — pathogen balance.

One reservoir for resistance genes where they can be exchanged among bacteria — and possibly end up in the food chain — is the sediment in marine fish farms even when no antibiotics have been applied.

«Global fisheries to be, on average, 20 percent less productive in 2300, UCI study finds: Warming - induced plankton growth near Antarctica will impair marine food chain.»

This toxic compound accumulates up the aquatic food chain and is often concentrated at high levels in fish, shellfish and marine mammals — and ultimately in the people who eat them.

After studying population changes in 154 species of fish worldwide over 60 years, Pinsky was surprised to see marine equivalents of rabbits and mice collapsing to low levels — still shy of extinction but serious enough to disrupt ocean food chains or fishing - based societies.

These pollutants bioaccumulate in the tissues of marine organisms, biomagnify up the food chain, and find their way into the foods we eat.»

«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.»

In the water above natural oil seeps in the Gulf of Mexico, where oil and gas bubbles rise almost a mile to break at the surface, scientists have discovered something unusual: phytoplankton, tiny microbes at the base of the marine food chain, are thrivinIn the water above natural oil seeps in the Gulf of Mexico, where oil and gas bubbles rise almost a mile to break at the surface, scientists have discovered something unusual: phytoplankton, tiny microbes at the base of the marine food chain, are thrivinin the Gulf of Mexico, where oil and gas bubbles rise almost a mile to break at the surface, scientists have discovered something unusual: phytoplankton, tiny microbes at the base of the marine food chain, are thriving.

«While the changing seascape has dramatically altered and increased the diversity and number of small creatures at the base of the marine food web, we still don't know how these changes in the ecosystem will propagate through the entire chain.

To further investigate, researchers at the University of New Hampshire looked at seaweed populations over the last 30 years in the Southwestern Gulf of Maine and found the once predominant and towering kelp seaweed beds are declining and more invasive, shrub - like species have taken their place, altering the look of the ocean floor and the base of the marine food chain.

Researcher Ajit Subramaniam, an oceanographer at Columbia University's Lamont - Doherty Earth Observatory, used the data set to focus on natural oil seeps and discovered something unusual — phytoplankton, the base of the marine food chain — were thriving in the area of these natural oil seeps.

In many parts of the ocean the productivity of phytoplankton — microscopic plants at the base of the marine food chain — is limited by the availability of dissolved iron.

Taken together, these organisms weigh approximately 10 billion tons and are a major link in the food chain between microscopic plankton and top predators like tuna, birds and marine mammals, according to Simone Baumann - Pickering, an assistant research biologist at the University of California, in San Diego.

Phytoplankton play key roles in several chemical and nutrient cycles, including taking up carbon dioxide from the atmosphere and either cycling it through food chains or sequestering it in the deep sea, says marine ecologist David Hutchins of the University of Southern California in Los Angeles, who wasn't involved in the current study.

As toxins move higher up in the food chain, from invertebrates to fish to marine mammals, they become more concentrated.

Scientists have revealed a key cog in the biochemical machinery that allows marine algae at the base of the oceanic food chain to thrive.

The result is a dramatic rise in sea - surface temperature and a drastic decline in plankton growth, which is devastating to the marine food chain, including commercial fisheries in the region.

The new research published in the journal Science Advances examined the skin cells of common dolphins for chemical clues about the length of the marine food chain, which begins with tiny plankton and continues as species eat them, and other species eat those species.

The massive amounts of plastic trash in marine environments may be leading to toxic metals entering the food chain.

In a new study published in the Journal of Geophysical Research: Oceans in July, researchers found that phytoplankton, marine microorganisms that serve as the foundation of the food chain in the ocean, were more likely to thrive with the melting of the continent's ice shelves and ice sheetIn a new study published in the Journal of Geophysical Research: Oceans in July, researchers found that phytoplankton, marine microorganisms that serve as the foundation of the food chain in the ocean, were more likely to thrive with the melting of the continent's ice shelves and ice sheetin the Journal of Geophysical Research: Oceans in July, researchers found that phytoplankton, marine microorganisms that serve as the foundation of the food chain in the ocean, were more likely to thrive with the melting of the continent's ice shelves and ice sheetin July, researchers found that phytoplankton, marine microorganisms that serve as the foundation of the food chain in the ocean, were more likely to thrive with the melting of the continent's ice shelves and ice sheetin the ocean, were more likely to thrive with the melting of the continent's ice shelves and ice sheets.

Tiny algae called Marine Snow located under the ice in Antarctica may hold the key to understanding the food chain for a huge part of the ocean.

It's home to millions of baitfish, crabs, shrimp, and other small aquatics, serving as the first link in the undersea food chain that supports the most abundant marine life in the Caribbean.

Whales are at the top of the food chain and have an important role in the overall health of the marine environment.

Plankton, the tiny organisms at the bottom of the ocean food chain that so much of marine life depends on, drift with the ocean currents, but sometimes come together in dense patches under the surface that can later rise to the surface as red tides.

In: Marine Food Chains, J. H. Steele, Ed.

If that finding stood the test of time, it would indeed be momentous; the vast clouds of tiny photosynthesizing organisms in the seas are an important part of the carbon cycle and underpin the marine food chain.

Phytoplankton in the deep oceans is in decline according to NASA, although just now this is being «off - set» by algae blooms near the coast, probably linked to agriculture - run - offs — both developments being disastrous for the marine food chain.

Species were hunted almost to the point of extinction, making fish far more expensive, and the oceans became a dumping ground for industrial and urban waste, spreading contamination throughout the marine food chain and making it unsafe to eat fish in great quantities.

It's been enough to raise the levels of the ocean — and the extra carbon in the atmosphere has also changed the chemistry of that seawater, making it more acidic and beginning to threaten the base of the marine food chain.

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Whales are at the top of the food chain and have an important role in the overall health of the marine environment.

In the North Sea, global warming is affecting plankton and the marine food chain, compounding the pressures of overfishing.3 Future warming is also expected to exert a significant impact on the marine ecosystem, creating further uncertainty for the fishing industry.7, 8,15

Major changes in plankton could therefore disrupt not only the marine food chain, but also the fishing industry and communities that have invested in infrastructure tied to commercial species in the North Sea, such as cod.9

While some types of plankton bloomed 30 days earlier at the beginning of this century than in the middle of the twentieth century, other types maintained their seasonal cycles throughout that period.7 Mismatches in marine communities and disruption of the food chain are the result.

There may be changes in nutrient availability, biological productivity, and the structure of marine ecosystems from the bottom of the food chain to the top.

Many other challenges such as the distortion of ecosystem services, the loss of biodiversity, the degradation of land, sprawling urbanization, worsening water scarcity, the disturbances in terrestrial and marine food chains or the ubiquitous pollution of all environmental systems have to be taken into consideration.

At stake, added Ove Hoegh - Guldberg, director of the Center for Marine Studies at the University of Queensland, Australia, and the study's senior author, are ecosystems that play vital roles in providing habitats for a vast array of marine species that are essential to the oceans» complex food Marine Studies at the University of Queensland, Australia, and the study's senior author, are ecosystems that play vital roles in providing habitats for a vast array of marine species that are essential to the oceans» complex food marine species that are essential to the oceans» complex food chain.

It is argued by the whalers that growing whale populations will lead to an imbalance in the marine ecosystem, and that by distorting the marine food chain, recovering populations of whales will threaten global food security.

As carbon dioxide is acidic, the surface waters of the oceans could become more acidic than ever before in five million years, reducing the capacity of shell - forming species to form shells and affecting the marine food chain.

This could lead to a drop in the number of marine plants, which could have knock - on effects further up the food chain.

This ocean acidification makes water more corrosive, reducing the capacity of marine organisms with shells or skeletons made of calcium carbonate (such as corals, krill, oysters, clams, and crabs) to survive, grow, and reproduce, which in turn will affect the marine food chain.7