A team of Texas A&M University and Louisiana State University scientists conducted a research cruise in late August to the "dead zone" - a region in the northern Gulf of Mexico that suffers from low oxygen and results in huge marine losses - and much to their surprise, the "dead zone" area had either moved or had disappeared completely.
Steven DiMarco, associate professor in the Department of Oceanography and leader of the team, found that some areas that were previously hypoxic - a technical term for extremely low dissolved oxygen concentrations in water - had broken up and appeared to pose little threat to marine life, while in other areas the hypoxia appeared to have moved further off shore.
Hypoxia can result in fish kills and can adversely affect many types of marine life where it is present. The dead zone area encompassed more than 6,000 square miles this year. "We found that the hypoxia had moved offshore from shallow waters to much deeper waters in the Gulf," DiMarco explains. "In other words, much of the dead zone had broken up, and this very much surprised us."
Keith Randall | EurekAlert!
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