The Gulf of Mexico dead zone measured 5,052 square miles this summer — approximately the size of Connecticut... --- The size is smaller than the 5,840 square miles recorded last year but still greater than the Mississippi River/Gulf of Mexico Watershed Nutrient (Hypoxia) Task Force target of less than 1,900 square miles — meaning nutrients from the Mississippi River watershed are continuing to affect the nation’s coastal resources and habitats in the Gulf. The task force consists of five federal agencies, 12 states and the tribes within the Mississippi/ Atchafalaya River Basin, and was established in 1997 to reduce and control hypoxia in the Gulf of Mexico... The largest Gulf dead zone ever recorded occurred in 2002, encompassing 8,481 square miles. The smallest recorded dead zone measured 15 square miles in 1988. The average size of the dead zone over the past five years has been about 5,500 square miles. Dead zones, also called hypoxia areas, are caused by nutrient runoff from agricultural and other human activities in the watershed and are highly affected by river discharge. These nutrients stimulate an overgrowth of algae that sinks, decomposes, and consumes the oxygen needed to support life in the Gulf.
Posted on: Sun, 05 Oct 2014 21:35:23 +0000
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