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Mobile Press-RegisterScientists measured two areas of low oxygen off the Alabama coast Tuesday, finding levels below the threshold that marine creatures need to survive.
The first low-oxygen pocket was found on the bottom in about 60 feet of water 12 miles off the coast due south of the mouth of Mobile Bay. The second was in about 100 feet of water 25 miles off the coast.
The low-oxygen layer was about 9 feet thick in each location. Scientists traveled a north-south line during the sampling, so there was no indication as to how wide the areas were.
Scientists said the unusual presence of low-oxygen areas off the coast raises the possibility that the number of oil-eating microbes has swelled because of the millions of gallons of oil in the Gulf.
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http://blog.al.com/live/2010/06/low-oxygen_pockets_found_off_a.html