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:
(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 [...]
About 66 million years ago, an asteroid more than 10 kilometers wide struck Earth, as seen in this artist’s rendering. The impact did more than bring an end to the reign of the dinosaurs. [...]
Fish are seen washed ashore on Sanibel Island. Bill Weir / CNN 8 August 2018 Off Sanibel Island, Florida (CNN) On a good day, a beach trip to Sarasota or a boat trip [...]
Daily Comet Editorial 2 August 2018 There are at least two ways of thinking about the dead zone that develops each summer in the Gulf of Mexico. The first, and most optimistic, is for us [...]