Where+are+dead+zones+most+likely+to+form?+(Coastal,+mid-ocean,+etc)+Sara,+Bernice,+Emilie

Eutrophication Occurance Mid-ocean vs. Coastal The dead zones are more likely to locate near the coastal areas, especially in gulfs, lakes and river deltas. This is hypothetically due to the fact that dead zones begin with mineral/pollution runoffs that cause large algae blooms and are then decomposed by bacteria, resulting in oxygen depletion. The runoff must come from land, and the areas closer to land would have a larger concentration of minerals/pollution. If pollution can be constantly picked up by a river, then it would result in accumulation at the end. Therefore, as major rivers enters the ocean, it's where dead zones are more likely to occur.

The Mississippi river has a particularly large dead zone.

costal area: inlet of the sea ( main rivers in the world) 1. Yangtze River  2.Congo river

3.Amazon

4.Missippi delta 5.nile river []
 * Conslusion:** Dead zone are more liekly to occur near the costal area because the costal area has a higher concentration of chlorophyll, as it's where the pollution runoffs enter the sea, especially in those areas where it's the inlet of the sea from the main rivers. The rivers carry industrial wastes fom inland along down the stream and flushes it into the ocean, providing the algaes lots of nutrients and thus creating dead zones. Therefore, it's more likely that dead zones will occur near the coastal areas and by the inlets of the sea from rivers, rather than in the mid ocean where there're less human/industrial influences. 
 * Sources:**http://oceancolor.gsfc.nasa.gov/cgi/browse.pl?sen=am