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dead zone

dead zone
NOAA / NOAA

Every summer, fish and other marine life are forced out of their habitats in the Gulf of Mexico due to an insidious “dead zone.”

The area, also known as a hypoxic zone, is a section of water that lacks enough oxygen for marine life to survive.

A summertime Gulf of Mexico dead zone fueled by pollution flowing out of the Mississippi River watershed could be among the largest on record this year.

It has become a rite of summer. Every year, a "dead zone" appears in the Gulf of Mexico. It's an area where water doesn't have enough oxygen for fish to survive. And every year, the National Oceanic and Atmospheric Administration commissions scientists to venture out into the Gulf to measure it.