Sentences with phrase «of ocean phytoplankton»

A main indirect effect is the fertilization of ocean phytoplankton production by dust - mitigated input of iron to the ocean surface layer (6, 7).

Not exact matches

Upon waking, I drink a liter of micronized water with two droppers of Oceans Alive Marine Phytoplankton to flush the body with nutrients.

That rain erodes rock and washes nutrients into the ocean, feeding blooms of phytoplankton called diatoms.

This nourishes phytoplankton, chlorophyll - bearing microorganisms at the base of the ocean's food chain, which suck up the greenhouse gas carbon dioxide (CO2) as they grow.

The shrimp represent centimeter - sized swimmers, including krill and shrimplike copepods, found throughout the world's oceans that may together be capable of mixing ocean layers — and delivering nutrient - rich deep waters to phytoplankton, or microscopic marine plants, near the surface, the researchers suggest.

He says their sulphate emissions triggered vast phytoplankton blooms and much of the ocean's oxygen was gobbled up as these died and decomposed.

Ocean mixing is an important part of the global climate cycle: It churns up nutrients that feed phytoplankton blooms and aids the exchange of gases with the atmosphere.

Both processes occur in regions of the ocean that are naturally low in oxygen, or anoxic, due to local lack of water circulation and intense phytoplankton productivity overlying these regions.

But nearly twice as much of the sunlight energy captured by phytoplankton in the ocean is released as heat than is used to make food, researchers report January 7 in Science.

A long - standing puzzle in ocean photosynthesis was why phytoplankton failed to grow fast in parts of the Pacific Ocean; after all, the microscopic plants have access to plenty of carbon dioxide thanks to upwelling wocean photosynthesis was why phytoplankton failed to grow fast in parts of the Pacific Ocean; after all, the microscopic plants have access to plenty of carbon dioxide thanks to upwelling wOcean; after all, the microscopic plants have access to plenty of carbon dioxide thanks to upwelling water.

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

They are ancestors to terrestrial plants, which seem to have evolved from certain ocean phytoplankton hundreds of millions of years ago.

Phytoplankton, the food of tiny krill, a key element in the food web of the southern oceans, will be equally affected by acidification.

1 One proposal, first suggested in the late 1980s by oceanographer John Martin of the Moss Landing Marine Laboratories in California, involves seeding ocean surfaces with iron to promote phytoplankton blooms that will soak up carbon dioxide, eventually exporting it into the deep ocean.

The first part of the process, the phytoplankton bloom, has already been demonstrated in small - scale tests in the South Pacific and the equatorial Pacific Ocean.

The various compounds containing nitrogen (such as nitrate, nitrite or ammonia) are essential nutrients for ocean life, particularly for phytoplankton that serve as the foundation of the food web.

When they died, these phytoplankton sank to the ocean floor thousands of metres below.

Though familiar to humans as an antiseptic, high levels of H2O2 can inhibit the growth of phytoplankton, tiny plants that are the base of many ocean food chains.

«Marine ecosystems everywhere to the north will be increasingly starved for nutrients, leading to less primary production (photosynthesis) by phytoplankton, which form the base of ocean food chains.»

When phytoplankton die, their carbon - based bodies sink to the ocean floor, where they can remain for millions of years.

«These conditions will cause changes in phytoplankton growth and ocean circulation around Antarctica, with the net effect of transferring nutrients from the upper ocean to the deep ocean,» said lead author J. Keith Moore, UCI professor of Earth system science.

The United States is on the verge of losing its ability to monitor phytoplankton activity in the world's oceans from space, the National Academy of Sciences said yesterday.

The loss of satellite - based «ocean color» measurements would be a blow to climate science, because phytoplankton — tiny ocean plants — help regulate the global carbon cycle.

Some of this carbon then sinks to the bottom of the ocean when the phytoplankton die, locking it away in the deep sea for thousands of years.

Because the upwelled waters ran along the surface for a longer period of time, nutrients spent more time near the surface of the ocean where phytoplankton could feed on them for longer.

Southern Ocean sea spray, similar to this off the coast of Australia, can launch particles from phytoplankton that seed planet - cooling clouds.

A plethora of phytoplankton kick up clouds in the Southern Ocean, researchers report July 17 in Science Advances.

Nearly 30 percent of ice covering the Arctic Ocean at summer's peak is thin enough to foster sprawling phytoplankton blooms in the waters below, a recent study estimated.

They incorporated the lifecycle of phytoplankton and zooplankton — small, often microscopic animals at the bottom of the food chain — into a novel mechanistic model for assessing the global ocean carbon export.

Phytoplankton not only constitutes the foundation of the food chain in the oceans, it also fixes carbon through photosynthesis and generates oxygen with the help of solar energy.

Over the course of coming decades, though, trade wind speed is expected to decrease from global warming, Thunell says, and the result will be less phytoplankton production at the surface and less oxygen utilization at depth, causing a concomitant increase in the ocean's oxygen content.

For one of them, you can thank plankton, in particular the single - celled photosynthetic drifters that comprise the phytoplankton of the world's oceans.

And it increases the amount of light reaching Arctic surface waters, spurring the growth of phytoplankton, tiny organisms that form the base of the Arctic ocean food chain.

The discovery of genes involved in the production of DMSP in phytoplankton, as well as bacteria, will allow scientists to better evaluate which organisms make DMSP in the marine environment and predict how the production of this influential molecule might be affected by future environmental changes, such as the warming of the oceans due to climate change.

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.

A different group of bacteria, also relying on the phytoplankton for food and energy, appear to compete with the diatoms for the precious vitamin, and all three groups of microbes are competing for iron, which, due to the extreme remoteness of the Southern Ocean, is a scarce and consequently invaluable resource.

«Biology trumps chemistry in open ocean: How phytoplankton assimilate limited concentrations of phosphorus.»

«Until now, our understanding of how phytoplankton assimilate nutrients in an extremely nutrient - limited environment was based on lab cultures that poorly represented what happens in natural populations,» explained Michael Lomas of Bigelow Laboratory for Ocean Sciences, who co-led the study with Adam Martiny of University of California — Irvine, and Simon Levin and Juan Bonachela of Princeton University.

Unlike most regions of the global ocean which do not contain sufficient nitrogen or phosphorus for sustained phytoplankton growth, diatoms in the remote waters of McMurdo Sound were starving from lack of iron and deficiency of vitamin B12.

In a paper published in PNAS on Monday November 24, scientists laid out a robust new framework based on in situ observations that will allow scientists to describe and understand how phytoplankton assimilate limited concentrations of phosphorus, a key nutrient, in the ocean in ways that better reflect what is actually occurring in the marine environment.

They took samples of ash and dust in the atmosphere, and of nutrients in the ocean, and also measured the activity of the phytoplankton.

Iron encourages the bloom of tiny algae called phytoplankton, which take in carbon dioxide (CO2) dissolved in the ocean for photosynthesis; that process in turn draws atmospheric CO2 into the surface waters.

But tropical species of phytoplankton, the team found, grow best at temperatures either at or below current ocean temperatures in the tropics, they report online today in Science.

Here we show that variation in phytoplankton temperature optima over 150 degrees of latitude is well explained by a gradient in mean ocean temperature.

Recent research has shown that the expected doubling of CO2 concentrations could inhibit the development of some calcium - shelled organisms, including phytoplankton, which are at the base of a large and complex marine ecosystem (see Ocean acidification: the other CO2 problem).

Predicting the effects of future ocean warming on biogeochemical cycles depends critically on understanding how existing global temperature variation affects phytoplankton.

The researchers found that phytoplankton in polar and temperate regions grow best at temperatures higher than the average annual temperatures of the oceans in which they live.

Rising ocean temperatures will alter the productivity and composition of marine phytoplankton communities, thereby affecting global biogeochemical cycles.

Some of this dust settled on desolate ocean stretches, creating phytoplankton blooms.

The researchers paired MIT's global circulation model — which simulates physical phenomena such as ocean currents, temperatures, and salinity — with an ecosystem model that simulates the behavior of 96 species of phytoplankton.