No 'dead zone' from BP oil

No 'dead zone' from BP oil

Deep sea mixing kept microbes from creating suffocating parcels of water in the Gulf

By Janet Raloff, 14:22 PM September 7, 2010

As aquatic microbes dine, they consume oxygen. When too many congregate at some temporary smorgasbord of goodies, they can use up so much oxygen that a so-called dead zone develops — water with too little oxygen to sustain fish, mammals or shellfish. On Sept. 7, federal scientists reported that despite the massive release of oil from the damaged BP well in the Gulf of Mexico, no such dead zone developed.

And that was as of August 9, three-and-a-half weeks after the well was capped. By that p...

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