Sentences with phrase «ocean oxygen depletion»

Extreme events of ocean oxygen depletion leading to anoxia are thought to be prime candidates for explaining some of the large extinction events in Earth history including the largest such event at the end of the Permian 250 million years ago.

Ocean oxygen depletion affects ocean and land life profoundly.

Ocean oxygen depletion due to decomposition of submarine methane hydrate Akitomo Yamamoto1, 2, *, Yasuhiro Yamanaka2, Akira Oka1 andAyako Abe - Ouchi1 Article first published online: 21 JUL 2014 DOI: 10.1002 / 2014GL060483

Not exact matches

«What complicates this story is that if these animals are responsible for a chunk of oxygen depletion in general, then a change in their habits might have a feedback in terms of oxygen levels in other parts of the deeper ocean.»

Nitrogen - rich fertiliser runoff is the primary cause of oxygen depletion in oceans, lakes and rivers, leading to aquatic «dead zones.»

Deep - sea oil exploration will probably release future spills, Solomon says, and global warming could destabilize large undersea deposits of frozen methane, leading to local ocean acidification or oxygen depletion (SN 7/31/2010).

Although oxygen depletion occurs naturally in some parts of the ocean, such as fjords and deep basins, the Gulf of Mexico's dead zone is caused by humans.

The initiated deglaciation charges the Arctic Basin with organic matter (enhanced marine productivity) and causes at least surface stratification, which will likely slow ocean currents and causes oxygen depletion.

«Significant environmental changes, such as sea level and sea temperature rise, oxygen depletion and ocean acidification, will dramatically change the landscape, restructuring an array of natural and physical assets as well as cultural and economic,» said Judith Kidlow of the National Ocean Economics Proocean acidification, will dramatically change the landscape, restructuring an array of natural and physical assets as well as cultural and economic,» said Judith Kidlow of the National Ocean Economics ProOcean Economics Program.

MPAs may also be able to counteract increasing incidences of nutrient - poor «ocean deserts» and depletion of oxygen in areas of the upper ocean, both of which are linked to climate change, according to the paper.

However, it remains a major scientific challenge to model and project the changes of the magnitude and intensity of subsurface oxygen depletion because it depends on changes in ocean circulation, rates of de-nitrification, and nutrient runoff from land, and because global data coverage for chemical and biological parameters remains poor.

The ocean will have oxygen holes (large areas of oxygen depletion).

An intensification of oxygen depletion in the ocean therefore also has the potential to alter the global ocean inventory of nitrate, affecting photosynthesis in the ocean.

For example, if more methane remains tied up in the ocean depths, the microbial buffet will contribute more seriously to oxygen depletion, and a corresponding loss of biodiversity.

However, a double check of the diagram shows that it doesn't distinguish between organic and inorganic C in the deep and intermediate ocean, so the total amount of organic C within the ocean that is available to be oxidized at that rate (using O2 at a rate of 0.011 % of atmospheric O2 per year) could be larger; however, oxygen depletion in the deeper ocean water wouldn't pull O2 out of the atmosphere until that water resurfaced.)