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  2. Ocean deoxygenation - Wikipedia

    en.wikipedia.org/wiki/Ocean_deoxygenation

    Ocean deoxygenation is the reduction of the oxygen content in different parts of the ocean due to human activities. [ 2 ] [ 3 ] There are two areas where this occurs. Firstly, it occurs in coastal zones where eutrophication has driven some quite rapid (in a few decades) declines in oxygen to very low levels. [ 2 ]

  3. Hypoxia (environmental) - Wikipedia

    en.wikipedia.org/wiki/Hypoxia_(environmental)

    Global map of low and declining oxygen levels in the open ocean and coastal waters, 2009. [1] The map indicates coastal sites where anthropogenic nutrients have exacerbated or caused oxygen declines to <2 mg/L (<63 μmol/L) (red dots), as well as ocean oxygen minimum zones at 300 m (blue shaded regions).

  4. Dead zone (ecology) - Wikipedia

    en.wikipedia.org/wiki/Dead_zone_(ecology)

    Red circles show the location and size of many dead zones (in 2008). Black dots show dead zones of unknown size. The size and number of marine dead zones—areas where the deep water is so low in dissolved oxygen that sea creatures cannot survive (except for some specialized bacteria)—have grown in the past half-century.

  5. Earth’s Disastrous 10th Tipping Point Has Been Identified - AOL

    www.aol.com/earth-disastrous-10th-tipping-point...

    A new study uncovers aquatic deoxygenation as Earth's 10th tipping point, threatening ecosystems and humanity's future. ... ozone depletion, ocean acidification, freshwater change, and more. (Of ...

  6. Environmental issues with coral reefs - Wikipedia

    en.wikipedia.org/wiki/Environmental_issues_with...

    1.10 Ocean deoxygenation. 1.11 Disease. ... Download as PDF; Printable version; ... it is when the oil starts to sink to the ocean floor when it becomes a problem ...

  7. Human impact on marine life - Wikipedia

    en.wikipedia.org/wiki/Human_impact_on_marine_life

    Ocean deoxygenation is an additional stressor on marine life. Ocean deoxygenation is the expansion of oxygen minimum zones in the oceans as a consequence of burning fossil fuels. The change has been fairly rapid and poses a threat to fish and other types of marine life, as well as to people who depend on marine life for nutrition or livelihood.

  8. Climate change will deplete ocean oxygen, kill fish, studies ...

    www.aol.com/news/climate-change-deplete-ocean...

    Climate change is going to wreak havoc on the world’s oceans, according to two new studies, depleting the warming waters of the oxygen that fish and other sea life need to survive.

  9. Oxygen minimum zone - Wikipedia

    en.wikipedia.org/wiki/Oxygen_minimum_zone

    In OMZs oxygen concentration drops to levels <10 nM at the base of the oxycline and can remain anoxic for over 700 m depth. [7] This lack of oxygen can be reinforced or increased due to physical processes changing oxygen supply such as eddy-driven advection, [7] sluggish ventilation, [8] increases in ocean stratification, and increases in ocean temperature which reduces oxygen solubility.