Sentences with phrase «oxygen hypoxic zone»

Not exact matches

Lothar Stramma, a physical oceanographer at the Christian Albrechts University of Kiel in Germany and his associates describe the hypoxic problem as global in a paper accepted for publication in Deep - Sea Research, stating that tropical low - oxygen zones have expanded horizontally and vertically around the world, and that subsurface oxygen has decreased adjacent to most continental shelves.

Their consumption of oxygen could create hypoxic zones and have «a serious influence on biodiversity at those times as well,»

NOAA - supported scientists found a large Gulf of Mexico oxygen - free or hypoxic «dead» zone, but not as large as had been predicted.

In 2014, sustained winds from Hurricane Arthur mixed Chesapeake Bay waters, delivering oxygen to the bottom and dramatically reducing the size of the hypoxic zone to 0.58 cubic miles.

Hypoxic (very low oxygen) and anoxic (no oxygen) zones are caused by excessive nutrient pollution, often from human activities such as agriculture, which results in insufficient oxygen to support most marine life in near - bottom waters.

This year's hypoxic zone, nearly the size of the state of Massachusetts, is right in the range predicted earlier in the year by the Louisiana Universities Marine Consortium, which does a yearly survey of oxygen levels.

When these organisms die and decay, they deplete oxygen levels, creating «dead zones» of hypoxic, or oxygen poor, water.

No, it has nothing directly to do with the BP oil spill, but it won't help things... Scientists supported by the National Oceanic and Atmospheric Administration have just announced that the northern Gulf of Mexico hypoxic zone — that's the Gulf Dead Zone to you and me, where there's so little oxygen that it doesn't really support life — is likely to be of above average size this summer, though it won't set a new record (phzone — that's the Gulf Dead Zone to you and me, where there's so little oxygen that it doesn't really support life — is likely to be of above average size this summer, though it won't set a new record (phZone to you and me, where there's so little oxygen that it doesn't really support life — is likely to be of above average size this summer, though it won't set a new record (phew).

The dead zone's return was discovered by oceanographers at Oregon State University, who deployed robotic underwater gliders and other monitoring devices over the past few months to assess oxygen levels in the water.They discovered that oxygen levels on reefs previously devastated by past dead zones had dropped to 0.5 mL / L by the end of June — a far cry from the 1.4 mL / L level considered to be hypoxic for most marine life.