2019 Shelfwide Cruise

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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.

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Gulf hypoxia in the news:

2412, 2019

Worldʼs Oceans Are Losing Oxygen Rapidly, Study Finds

December 24th, 2019|Comments Off on Worldʼs Oceans Are Losing Oxygen Rapidly, Study Finds

Kendra Pierre-Louis / The New York Times 7 December 2019 The world’s oceans are gasping for breath, a report issued Saturday at the annual global climate talks in Madrid has concluded. The report represents the [...]

1710, 2019

Midwestern Farm Runoff Creates Headache For Louisiana Shrimpers

October 17th, 2019|Comments Off on Midwestern Farm Runoff Creates Headache For Louisiana Shrimpers

Travis Lux / New Orleans Public Radio 17 October 2019 It’s only midmorning, but shrimper Thomas Olander is already calling it quits for the day in a small bayou in St. Mary Parish, on the [...]

809, 2019

Mississippi Beaches Have Been Vacant For Two Months As A Toxic Algae Bloom Lurks Offshore

September 8th, 2019|Comments Off on Mississippi Beaches Have Been Vacant For Two Months As A Toxic Algae Bloom Lurks Offshore

Rocky Kistner / HuffPost ENVIRONMENT 08 September 2019 An algal bloom in the Gulf is devastating coastal businesses. Ship Island Excursions has survived hurricanes, global recessions, a world war and a host of economic challenges [...]

2608, 2019

Polluting Farmers Should Pay

August 26th, 2019|Comments Off on Polluting Farmers Should Pay

Catherine Kling / New York Times 26 August 2019 Dr. Kling is an environmental economist at Cornell University. Fertilizer runoff is making us sick. States can step in to regulate farmers. This year’s dead zone in [...]

2308, 2019

Too Much of a Good Thing is ….

August 23rd, 2019|Comments Off on Too Much of a Good Thing is ….

TUWaterWays Water News and More from the Tulane Institute on Water Resources Law & Policy 23 August 2019 If a bit of something is good for you then surely a lot of it has to [...]

1608, 2019

Large 2019 dead zone in Gulf of Mexico

August 16th, 2019|Comments Off on Large 2019 dead zone in Gulf of Mexico

Deanna Conners / EarthSky 16 August 2019 This year’s Gulf of Mexico dead zone of oxygen-depleted waters is the 8th largest ever recorded. A dead zone of oxygen-depleted waters forms every summer in the Gulf of Mexico [...]