The Gulf contains a hypoxic dead zone that runs east-west along the Texas-Louisiana coastline.

A hypoxic dead zone where other life can't live.

The Gulf of Mexico dead zone isn't the world's only hypoxic zone.

The exaerobic zone is found at the boundary of anoxic and hypoxic zones.

The hypoxic zones of tumors generally evade traditional chemotherapeutic agents and ultimately contribute to relapse.

Dr. Rabalais and her team have led the research efforts to date on the dead zone, also known as the hypoxic, or low-oxygen, zone.

Among the most compelling pieces of evidence are the maps researchers have made since 1985 of the hypoxic zone.

That summer the hypoxic zone doubled in size.

Aquatic recreational areas create hypoxic zones, which acidifies the water and decreases the oxygen levels.

There were a number of hydrological, climate, and monitoring factors that led to the large increase in the hypoxic zone over the past year.