What is hypoxia?
Hypoxia, or low oxygen, is an environmental phenomenon where the concentration of dissolved oxygen in the water column decreases to a level that can no longer support living aquatic organisms. Hypoxic areas, or “Dead Zones,” have increased in duration and frequency across our planet’s oceans since first being noted in the 1970s.
The largest hypoxic zone currently affecting the United States, and the second largest hypoxic zone worldwide, is the northern Gulf of Mexico adjacent to the Mississippi River.
Gulf hypoxia in the news:
It’s not easy to push an alligator around, but hurricanes have been known to move them miles from home. Shown here is a resident of Everglades National Park, Florida. Photograph by Keith Ladzinski, National [...]
Craig Pittman / Tampa Bay Times 20 September 2018 Red Tide influenced by Mississippi River: Scientists say pollution flowing into the Gulf of Mexico is fueling the Red Tide algae bloom, and making it resemble [...]
(Pixabay) Chloe Reichel / Journalist’s Resource 30 August 2018 When extreme weather occurs, questions of whether and how climate change contributed to the event loom large. According to Rick Weiss, director of SciLine and past [...]
Lance Nacio, left, and Randy Skinner are Gulf Coast shrimp fishermen who traveled to Minnesota last week to talk about the impact of Mississippi River pollution their industry. Kirsti Marohn | MPR News [...]
Graph and map showing dissolved oxygen levels Maryland Department of Natural Resources August 10, 2018 Heavy Rainfall and Sustained Winds Helped Produce Best Recorded Results Ever Due to extreme summer weather, dissolved oxygen [...]