Gulf of Mexico ‘dead zone’ larger than average, exceeds June prediction – Washington Examiner
A recent survey has revealed that the low-oxygen ”dead zone” in the Gulf of Mexico is larger than both average and initial predictions. Spanning approximately 6,705 square miles (about the size of New Jersey), this dead zone poses a significant threat to marine life, as it can lead to the death of fish and other organisms due to a lack of oxygen. Conducted by scientists from Louisiana State University and the Louisiana Universities Marine Consortium, the findings were supported by the National Oceanographic and Atmospheric Administration (NOAA). NOAA had previously anticipated a dead zone of 5,827 square miles based on data related to nutrient runoff from the Mississippi River, but the actual size surpassed all expectations. Notably, the average size of dead zones in the Gulf over the last five years has been around 4,298 square miles. Excessive nutrients, particularly from fertilizers, are the primary drivers behind the development of these low-oxygen areas.
Gulf of Mexico ‘dead zone’ larger than average, exceeds June prediction
(The Center Square) – A low-oxygen “dead zone” in the Gulf of Mexico was larger than average and what was predicted, a recent survey found.
The “dead zone” with little to no oxygen can kill fish and marine life is approximately 6,705 square miles, or 4 million acres, the 12th largest found in 38 years of surveys. Work was done by scientists from Louisiana State University and the Louisiana Universities Marine Consortium supported by the National Oceanographic and Atmospheric Administration.
This “dead zone” is the size of New Jersey, and is larger than NOAA predicted in June.
The agency predicted an above-average sized “dead zone” of 5,827 square miles, utilizing data on Mississippi River discharge and nutrient runoff data from the U.S. Geological Survey.
The average size of the hypoxia zone in the Gulf over the past five years has been 4,298 square miles.
These zones of low to no oxygen are caused by excessive nutrients, such as fertilizer runoff from farmland, and from the Mississippi and Atchafalaya river systems.
These nutrients set off an overgrowth of algae that dies and decomposes, depleting oxygen from the water as it sinks to the bottom. Research has shown this depletion causes fish and other marine life to vacate the area.
“It’s critical that we measure this region’s hypoxia as an indicator of ocean health, particularly under a changing climate and potential intensification of storms and increases in precipitation and runoff,” Nicole LeBoeuf, assistant administrator of NOAA’s National Ocean Service, said in a release. “The benefit of this long-term data set is that it helps decision makers as they adjust their strategies to reduce the dead zone and manage impacts to coastal resources and communities.”
The Environmental Protection Agency started the Gulf Hypoxia Program to reduce excessive nutrients and reduce the “dead zones” to 3,100 square miles or less by 2035. It is funded by $60 million from the $1.2 trillion Infrastructure Investment and Jobs Act of 2021.
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