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Patches of the Gulf of Mexico seafloor are barren and devoid of marine life. This is partly because of the Gulf of Mexico Dead Zone, and also because marine life is attracted to underwater features. A sea-floor devoid if structure, protection, nutrients or other attractive features is often also devoid of marine life.
In fall months, tropical storms begin to enter the Gulf of Mexico and break up the dead zones, and the cycle repeats again in the spring. Aquatic and marine dead zones can be caused by an increase in nutrients (particularly nitrogen and phosphorus) in the water, known as eutrophication. These nutrients are the fundamental building blocks of ...
In the 1960s the number of dead zones worldwide was 49; the number rose to over 400 by 2008. [125] Among the largest dead zones were those in northern Europe's Baltic Sea and the Gulf of Mexico, which affects a $2.8 billion U.S. fish industry. [74] Unfortunately, dead zones rarely recover and usually grow in size. [125]
Satellite photo of an algal bloom in western Lake Erie, July 28, 2015. NASA Earth ObservatoryMidsummer is the time for forecasts of the size of this year’s “dead zones” and algal blooms in ...
A 'dead zone' off the Gulf coast is larger than NOAA predicted. The massive area poses danger to marine life, and recovery could take decades. A 'dead zone' is growing in the Gulf of Mexico.
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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. [19]
Dead zones—areas in the water that are low on oxygen—are on the rise around the world due to a double-whammy of hotter temperatures and increased pollution, leading to the death of marine life ...