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(Photo : Getty Images) Seafloor Sediments  Fighting through seas and inadequate sleep, the researchers spent most of their week working side by side in a tiny stand-up refrigerator, making analyses of seafloor sediments to get more knowledge about the effects of low-oxygen conditions on the environment of deep-sea. When organisms pass away, they go down through the water column, taking up oxygen in the sub-surface ocean when they decompose. This brings about bands of oxygen-depleted water referred to as oxygen minimum zones, or dead zones . Most organisms cannot inhabit these unfavorable environments. Although they naturally occur in some regions, dead zones usually emerge following the washing of fertilizer and sewage downstream into coastal regions, prompting algal blooms which then die off and decompose.

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