This Hypoxia Watch Map Viewer provides access to near-real-time, geospatially referenced bottom-dissolved oxygen data collected during the annual SEAMAP Summer Groundfish …

May 21, 2021 · Every summer in the Gulf of Mexico a hypoxic zone appears as a consequence of the massive amounts of nitrogen and phosphorous coming from the Mississippi River (Figure …

Feb 5, 2025 · Later in the summer (typically late July), NOAA supports an annual cruise to physically measure the extent of the zone. This graphic illustrates the frequency of bottom …

The annual survey helps keep track of the progress made through the efforts of the Environmental Protection Agency’s Mississippi River/Gulf of Mexico Hypoxia Task Force, a state-federal …

The largest zone of oxygen-depleted coastal waters in the United States, and the second largest for the world’s coastal oceans, is in the northern Gulf of Mexico on the Louisiana continental …

Aug 1, 2024 · NCCOS-supported scientists have determined that this year’s Gulf of Mexico “dead zone” — an area of low oxygen that can kill fish and marine life — is approximately 6,705 …

The Gulf of Mexico Dead Zone, also known as a hypoxic zone, is a significant environmental concern, developing annually when nutrient-rich water from the Mississippi River basin flows …

Oct 19, 2023 · The Gulf of Mexico has a seasonal hypoxic zone that forms every year in late summer. Its size varies from fewer than 5,000 square kilometers (1,931 square miles) to …

Jun 3, 2020 · Excess nutrient pollution from the Mississippi River watershed causes low oxygen levels that harm marine life in the Gulf every summer. NOAA predicts a 6,700 square mile …

Apr 30, 2024 · The largest hypoxic zone in U.S. coastal waters—and second largest in the world—is located in the northern Gulf of Mexico on the Louisiana/Mississippi continental shelf, …

Aug 3, 2022 · The five-year average dead zone size (also known as the hypoxic zone) is now 4,280 square miles, which is over two times larger than management targets. Since records …

The area of temporary hypoxic bottom water that occurs most summers off the coast of Louisiana in the Gulf of Mexico [58] is the largest recurring hypoxic zone in the United States. [59] It …

Aug 2, 2023 · Today, NOAA-supported scientists announced that this year’s Gulf of Mexico “dead zone”— an area of low to no oxygen that can kill fish and marine life — is approximately 3,058 …

At 2,116 square miles, the 2020 hypoxic zone in the Gulf of Mexico is the 3rd smallest ever measured in the 34-year record, measured from July 25 to August 1. Red area denotes 2 …

Jan 30, 2025 · “The Gulf of Mexico algal bloom is a really big problem,” Elbakidze said. “Nitrogen from agriculture gets into the downstream systems and results in excess nutrients in those …

Aug 2, 2023 · Today, NOAA-supported scientists announced that this year’s Gulf of Mexico “dead zone”— an area of low to no oxygen that can kill fish and marine life — is approximately 3,058 …

Mar 3, 2019 · Hypoxia kills or drives away aquatic life and the economic and environmental impacts of hypoxia can be severe. To reduce the size of the hypoxic zone in the Gulf of …

“The northern Gulf of Mexico faces significant environmental challenges, including nutrient overloading, harmful algal blooms, and oxygen depleted ‘dead zones’,” Wang said. “These …

Feb 4, 2025 · Ocean deoxygenation, driven by nutrient pollution and warming, leads to hypoxic conditions in benthic habitats and expands oxygen minimum zones in the pelagic realm 5,6. …

Aug 4, 2020 · NOAA-supported scientists have determined this year’s Gulf of Mexico “dead zone”— an area of low to no oxygen that can kill fish and marine life — is approximately 2,116 …