Map of Three Anoxic 'Dead zones' (IMAGE)

University of Rochester

Map of Three Anoxic 'Dead zones'

Caption

There are three regions in the ocean with exceptionally low oxygen levels; two off the coast of the Americas, just north and south of the equator (numbers 1 and 2) and one in the Arabian Sea (number 3). These areas are known as "dead zones" because only anaerobic microbes can survive here.

Credit

Thomas Weber / University of Rochester

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