Sentences with phrase «ocean oxygen content»

«As ocean oxygen content declines and acidity increases in California waters it will become increasingly important to incorporate these changes into fisheries management practices,» says Scripps Institution of Oceanography researcher Lisa Levin, Sato's advisor and a study coauthor.

«Some climate models suggest that under global warming scenarios, ocean oxygen content will decrease,» Johnson says.

Not exact matches

The oxygen content of the ocean may be subject to frequent ups and downs in a very literal sense — that is, in the form of the numerous sea creatures that dine near the surface at night then submerge into the safety of deeper, darker waters at daybreak.

«The prevailing thinking has been that as the oceans warm due to increasing atmospheric greenhouse gases, the oxygen content of the oceans should decline,» Thunell says.

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.

Only during the second marked increase in atmospheric oxygen content 600 million years ago did the deep ocean become fully oxidised, which allowed the oceanic crust to gain the «fingerprint» of high uranium - 238.

Observed decreases in oxygen content of the global ocean.

«Indirectly, this alters the oxygen and nitrogen content of the ocean.

Of particular concern is the ocean's phytoplankton situation as it is responsible for roughly 50 % of the atmosphere's oxygen content.

Projected changes in physical and biogeochemical drivers such as temperature, CO2 content and acidification, oxygen levels, the availability of nutrients, and the amount of ocean covered by ice, will affect marine life.

The oxygen content of the atmosphere is diminishing at a rate that corresponds to the increase in CO2, so the increase in CO2 is due to oxidation of carbonaceuos material of some kind, eg., burning, decay, etc., and not from, say, the oceans, volcanoes or some other geological process.

(Oxygen, iron and hydrogen sulfide content of the world's oceans over the past 4 billion years.

The oxygen content in the surface ocean is projected to decline with warming because of the decrease in solubility of gases with increasing temperature, and changes in ventilation and biological consumption.

In the tropical Atlantic, Pacific, and Indian Ocean, a decline in oxygen content in the subsurface waters has been confirmed with observations (Stramma et al., 2010).

With a general weakening of ventilation rates as a result of climate change (Bryan et al., 2006), oxygen content of the global ocean is likely to further decrease (ventilation to the surface allows new input of oxygen from the atmosphere).