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Causes and Consequences of Hypoxic Events in Low-i...

We are investigating the processes that lead to hypoxia in Southern California’s lagoons, and identifying its ecological impacts. These small estuaries, which have tidal inlets that can close to the ...

Florida Regional Ecosystem Stressors Collaborative...

We are investigating the current and future impacts of five key stressors–ocean acidification, hypoxia, harmful algal blooms, warming, and eutrophication–on South Florida’s coastal ecosystems. Results will provide actionable information for ...

Forecasting the Causes, Consequences, and Potentia...

In recent years, the central basin of Lake Erie has experienced low-oxygen conditions, despite measures taken by surrounding states and provinces to reduce nutrient inputs. We studied the factors that ...

How Will Changing Temperature and Oxygen Condition...

We are supporting the application of coastal ocean models to determine the vulnerability of important species to changing temperature and oxygen in the California Current. This will enable coastal managers ...

Hypoxia in Green Bay, Wisconsin: Biogeochemical Dy...

Hypoxia conditions have plagued the lower part of Lake Michigan’s Green Bay and the Fox River for decades. We know nutrients are contributing to the problem, and we are developing ...

Hypoxia Response to Nutrient Management in Narraga...

We are developing observational and modeling tools and analyses to help management agencies in Narragansett Bay, Rhode Island assess the efficacy of nutrient management controls on hypoxia (low dissolved oxygen) ...

Impacts of Hypoxia on Fish and Fisheries in the No...

To protect fisheries and support ecosystem-based resource management in the northern Gulf of Mexico, we are developing modeling tools that will evaluate and simulate how large-scale changes in forcing factors ...

LEOFS-Hypoxia: Operational Lake Erie Hypoxia Forec...

Deep waters of Lake Erie’s central basin have areas of low dissolved oxygen. Weather conditions can determine if this low oxygen (hypoxic) water will be taken up by treatment plants, ...

Mechanisms Controlling Hypoxia – Glider Applicatio...

We evaluated the use of gliders to improve Gulf of Mexico hypoxic zone monitoring. The efficacy of this technology was determined and we developed a comprehensive plan that integrates glider ...

News

New Study Compares Methods to Predict Hypoxic Cond...

Climate change is expected to reduce oxygen levels in the coastal zone, expanding existing hypoxic (low-oxygen) regions and creating new ones, causing substantial harm to coastal ecosystems like estuaries. Accurate ...

Above Average Summer 2024 ‘Dead Zone’ Measured in ...

Caption: (Top) Map of measured Gulf hypoxia zone, July 21 - July 26, 2024. Red area denotes 2 mg/L of oxygen or lower, the level which is considered hypoxic, at ...

New Hypoxia Forecast for Lake Erie: Enhancing Wate...

Cleveland skyline and Cleveland Water Intake Crib. Photo Credit: Ed Verhamme, Limnotech Lake Erie now benefits from an advanced hypoxia forecast model, designed to help water treatment plants manage water ...

NOAA Forecasts Above Average ‘Dead Zone’ for Gulf ...

The Mississippi River watershed, which encompasses over 40% of the continental U.S and crosses 22 state boundaries, is made up of farms (yellow), cities (red), and natural lands (green). Nitrogen ...

NCCOS Awards $14.1M for Harmful Algal Bloom and Hy...

A beach on Saint Martin in the Caribbean (east of Puerto Rico) covered in Sargassum seaweed. Credit: NOAA AOML NCCOS is announcing $14.1 million in funding for harmful algal bloom ...

Below Average Summer 2023 ‘Dead Zone’ Measured in ...

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 3,058 square ...

Hypoxia Impacts Macrobenthic Organism Densities an...

Caption: Los Peñasquitos Lagoon, a low-inflow estuary near La Jolla, California with the estuary mouth open. Credit: Michelle Cordrey NCCOS-supported researchers compared macrobenthic organisms in two low-inflow estuaries in Southern ...

Smaller than Expected Summer 2022 ‘Dead Zone’ Meas...

(Top) Map of measured Gulf hypoxia zone, July 25 – August 1, 2022. Red area denotes 2 mg/L of oxygen or lower, the level which is considered hypoxic, at the ...

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