Sentences with phrase «ocean carbon export»

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.

Not exact matches

«Although most of the macrophyte carbon is released back to the atmosphere in the same form that it is assimilated, carbon dioxide, some of it is actually exported to the ocean as dissolved carbon or released to the atmosphere as methane, a gas that has a warming potential 20 times larger than carbon dioxide,» said John Melack, a professor at the University of California, Santa Barbara.

«Recent studies have shown that there's substantial lateral carbon exports from these ecosystems toward the coastal ocean and that is something that we also would like to understand,» said Vargas.

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.

While these results indicate that coccolithophore calcification might increase under future ocean conditions, the researchers say that it's still unclear «whether, or how, such changes might affect carbon export to the deep sea.»

The scientists focused on the ocean's biological pump, which exports organic carbon from the euphotic zone — the well - lit, upper ocean — through sinking particulate matter, largely from zooplankton feces and aggregates of algae.

«The export of terrestrial dissolved organic carbon from inland water to the ocean is faster than its photochemical mineralization in the inland waters.

The ocean's biological pump works to draw down atmospheric carbon dioxide (CO2) by exporting carbon from the surface ocean.

Should the frontal system which supports these blooms also migrate, reduced interaction of the SACCF with the South Georgia shelf may have grave implications for the sustainability of the rich ecosystem and the efficiency of carbon - export into the oceans interior.

Possible mechanisms include (iv) fertilization of phytoplankton growth in the Southern Ocean by increased deposition of iron - containing dust from the atmosphere after being carried by winds from colder, drier continental areas, and a subsequent redistribution of limiting nutrients; (v) an increase in the whole ocean nutrient content (e.g., through input of material exposed on shelves or nitrogen fixation); and (vi) an increase in the ratio between carbon and other nutrients assimilated in organic material, resulting in a higher carbon export per unit of limiting nutrient expoOcean by increased deposition of iron - containing dust from the atmosphere after being carried by winds from colder, drier continental areas, and a subsequent redistribution of limiting nutrients; (v) an increase in the whole ocean nutrient content (e.g., through input of material exposed on shelves or nitrogen fixation); and (vi) an increase in the ratio between carbon and other nutrients assimilated in organic material, resulting in a higher carbon export per unit of limiting nutrient expoocean nutrient content (e.g., through input of material exposed on shelves or nitrogen fixation); and (vi) an increase in the ratio between carbon and other nutrients assimilated in organic material, resulting in a higher carbon export per unit of limiting nutrient exported.

1998: ``... the average turnover time of phytoplankton carbon in the ocean is on the order of a week or less, total and export production are extremely sensitive to external forcing and consequently are seldom in steady state.

In contrast to the traditional view of anthropogenic organic carbon export and degradation, we suggest that with the increase of wastewater discharge and treatment rates, wastewater DIC input may play an increasingly more important role in the coastal ocean carbon cycle.

Jellies are especially important because they rapidly consume plankton and particles and quickly export biomass and carbon to the ocean interior.

One may suggest that ocean carbon sequestration can proceed more effectively through the uptake of atmospheric CO2 by intertidal marsh grasses and the subsequent export.

EFFECT OF NATURAL IRON FERTILIZATION ON CARBON SEQUESTRATION IN THE SOUTHERN OCEAN Nature, Vol 446 26 April 2007 doi: 10.1038 / nature05700 The efficiency of fertilization, defined as the ratio of the carbon export to the amount of iron supplied, was at least ten times higher than previous estimates from short - term blooms induced by iron - addition experiCARBON SEQUESTRATION IN THE SOUTHERN OCEAN Nature, Vol 446 26 April 2007 doi: 10.1038 / nature05700 The efficiency of fertilization, defined as the ratio of the carbon export to the amount of iron supplied, was at least ten times higher than previous estimates from short - term blooms induced by iron - addition expericarbon export to the amount of iron supplied, was at least ten times higher than previous estimates from short - term blooms induced by iron - addition experiments.

Synthesis products developed to date: SOCAT, CARINA, PACIFICA and GLODAPv2 have dramatically increased our understanding of several critical phenomena including air - sea fluxes of carbon, ocean interior carbon storage, ocean acidification, net community and export production, and interior ocean circulation which allowed us to take the relevant actions listed above.

Therefore, although our results suggest that coccolithophore calcification will increase in future ocean conditions (table 6), it is unclear whether, or how, such changes might affect carbon export to the deep sea [7,8].