Please tell me about the Dead Zone in the Gulf of Mexico, what time of year does it occur and what causes it?
How can it be prevented, what time of year does it occur and what causes this? (The Dead Zone in the Gulf of Mexico)
I am to have a huge discussion about this tomorrow and any interesting and important information about this you can tell me would be extremely helpful, thanks!
- 1 decade agoFavorite Answer
The dead zone in the Gulf of Mexico is an area within the northern Gulf of Mexico in which the bottom water contains less than 2 parts per million of dissolved oxygen. This is a condition called "hypoxia". The low concentration of dissolved oxygen cause fish and and other organisms to suffocate from lack of oxygen. Those organisms that can swim out of the dead zone will move out of it. Those organisms, which cannot move out of the dead zone, can ultimately die. The Dead Zone is most pronounced during the summer. The maximum extent of the Dead Zone in the Gulf of Mexico was 22,000 square kilometers in 2002. Between 2004 and 2008, it averaged about 17,000 square kilometers in area, the size of Lake Ontario.
According to the United States Geological Survey:
"Hypoxia is believed to be caused primarily by excess nutrients delivered
from the Mississippi River in combination with seasonal stratification of
Gulf waters. Excess nutrients promote algal and attendant zooplankton
growth. The associated organic matter sinks to the bottom where it decomposes,
consuming available oxygen. Stratification of fresh and saline waters
prevents oxygen replenishment by mixing of oxygen-rich surface water
with oxygen-depleted bottom water."
For more information about the Gulf of Mexico Dead Zone, do a Google search for "hypoxia" and "Gulf of Mexico".
Some online sources of information about the Gulf of Mexico Dead Zone are:
The Gulf of Mexico Dead Zone (includes map of Dead Zone)
Agricultural Impacts in the Gulf of Mexico
How the (Gulf of Mexico) Dead Zone Forms
USGS Hypoxia in the Gulf of Mexico Studies
Gulf Of Mexico Hypoxia Watch (includes map of dead zone)
Dead zone (ecology)
USGS Publications on Nutrients in the Mississippi River Basin
and Hypoxia (Dead Zone) in the Gulf of MexicoSource(s): Hypoxia in the Gulf of Mexico http://www.gulfhypoxia.net/ http://www.gulfhypoxia.net/Overview/ http://www.gulfhypoxia.net/Resources/Links/
- 1 decade ago
It can happen at any time.
It's caused by Chuck Norris taking a leak in any of the southwestern states.