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Projects

An Early Warning System for Pseudo-nitzschia Harmf...

Blooms of some species of the diatom Pseudo-nitzschia produce a neurotoxin that accumulates in shellfish, which can cause illness and even death in humans who eat them. Shellfish managers monitor ...

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 ...

Coastal Acidification and Harmful Algal Blooms in ...

This project aims to determine how harmful algal blooms (HABs) in New York waters respond to coastal acidification, how current and future climate change conditions will affect these HABs, and ...

Complex Interactions Between Harmful Phytoplankton...

We identified how nutrients and exotic zebra mussels interact to promote harmful algal blooms (HABs) in the Great Lakes. Results show the relationship between nutrient loading, herbivore grazing, and HABs ...

Effects of Climate Change on Chemical Contaminant ...

Many climate related variables such as temperature, pH, dissolved oxygen, and salinity can alter chemical toxicity. Most chemical testing is performed using a standard set of parameters.  We are expanding ...

Explaining Acidification and Nutrient Pollution in...

We are supporting research that will define relationships between estuarine acidification and other stressors (i.e., reduced freshwater inflow, low oxygen, and nutrient loading) in Texas coastal bays. This information will ...

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 ...

Harmful Algal Bloom (HAB) Forecasting

Our offshore HAB forecasts notify coastal managers before blooms reach the coast. Our forecasts identify harmful blooms, location, size and trajectory. Our early warnings provide health officials, managers and water ...

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 ...
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News

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 ...

NOAA Forecasts Smaller than Average ‘Dead Zone’ fo...

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 ...

San Diego Estuaries Research Symposium Highlights ...

On February 7, 2023, NCCOS-supported researchers under the Coastal Hypoxia Research Program presented their findings at the virtual San Diego Estuaries Research Symposium. The symposium was designed to bring together ...

New Funding to Reduce Nutrient Pollution Reviewed ...

The Gulf of Mexico Hypoxia Task Force held its 37th annual meeting in December to review ongoing actions to improve water quality in the Mississippi River basin and to discuss ...

New Short Film on Understanding Hypoxia: Dead Zone...

With funding from NCCOS, a short film, "Understanding Hypoxia: Dead Zones on the Pacific Coast", was produced by Oregon State Productions, a documentary film team at Oregon State University. The ...

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 ...

NOAA Undergraduate Scholar Joins Gulf of Mexico Re...

In 2022, NOAA and partners completed eight expeditions in the Gulf of Mexico in support of four projects designed to help restore mesophotic and deep benthic communities damaged by the ...

Suitable Habitat for Pacific Halibut Predicted to ...

Pacific halibut (Hippoglossus stenolepis) in Glacier Bay, Alaska. Credit: National Park Service. A study by NCCOS-funded researchers predicts that under a business-as-usual carbon dioxide emissions scenario, suitable habitat for Pacific ...

NOAA Coastal Hypoxia Research Program Announces FY...

The NCCOS Competitive Research Program is pleased to announce a Fiscal Year 2023 Notice of Funding Opportunity (NOFO) for its Coastal Hypoxia Research Program. This funding opportunity seeks to improve ...

Products

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Data & Publications

A coupled physical-biological model of the Northern Gulf of Mexico shelf: model description, validation and analysis of phytoplankton variability

The Texas-Louisiana shelf in the Northern Gulf of Mexico receives large inputs of nutrients and freshwater from the Mississippi/Atchafalaya River system. The nutrients stimulate high rates of primary production in the river plume, which contributes to the development of a ...

A high-resolution pre-operational forecast model of circulation on the Texas-Louisiana continental shelf and slope

A new pre-operational model of circulation over the Texas-Louisiana continental shelf and slope, based on the Regional Ocean Modelling System (ROMS) is presented. The model is designed with a number of practical applications in mind: to predict oil spill trajectories, ...

A modeling study of physical controls on hypoxia generation in the northern Gulf of Mexico

The Louisiana shelf (LA shelf) in the northern Gulf of Mexico experiences hypoxic conditions every summer due to the combination of eutrophication and strong water column stratification. Here we use a three-dimensional circulation model coupled with a simple oxygen model ...

A Reduced Complexity, Hybrid Empirical-Mechanistic Model of Eutrophication and Hypoxia in Shallow Marine Ecosystems

Numerical simulation models have a long history as research tools for the study of coastal marine ecosystems, and are increasingly being used to inform management, particularly related to nutrient-fueled eutrophication. Demand for modeling assessments is rapidly increasing, and managers need ...

A Scenario and Forecast Model for Gulf of Mexico Hypoxic Area and Volume

For almost three decades, the relative size of the hypoxic region on the Louisiana-Texas continental shelf has drawn scientific and policy attention. During that time, both simple and complex models have been used to explore hypoxia dynamics and to provide ...

Assessing biophysical controls on Gulf of Mexico hypoxia through probabilistic modeling

A mechanistic model was developed to predict midsummer bottom-water dissolved oxygen (BWDO) concentration and hypoxic area on the Louisiana shelf of the northern Gulf of Mexico, USA (1985–2011). Because of its parsimonious formulation, the model possesses many of the benefits ...

Assessment of hypoxia-inducible factor-1α mRNA expression in mantis shrimp as a biomarker of environmental hypoxia exposure

Efforts to assess the ecological impacts of the marked increase in coastal hypoxia worldwide have been hampered by a lack of biomarkers of hypoxia exposure in marine benthic organisms. Here, we show that hypoxia-inducible factor-1α (HIF-1α) transcript levels in the ...

Carbon Dynamics on the Louisiana Continental Shelf and Cross-Shelf Feeding of Hypoxia

Large-scale hypoxia regularly develops during the summer on the Louisiana continental shelf. Traditionally, hypoxia has been linked to the vast winter and spring nutrient inputs from the Mississippi River and its distributary, the Atchafalaya River. However, recent studies indicate that ...

Changes in Mississippi River Water Quality this Century: Implications for Coastal Food Webs

In this article, we quantify some important changes in water quality for the Lower Mississippi River for this century and then suggest their causes and possible impact ...

Characterization of three IGFBPs in Atlantic croaker and their regulation during hypoxic stress: potential mechanisms of their upregulation by hypoxia

Insulin-like growth factor-binding proteins (IGFBPs) play important roles in downregulating IGF activity and growth and development in vertebrates under hypoxic stress. However, the mechanisms of hypoxia regulation of IGFBPs in teleost fishes are unknown. The involvement of reactive oxygen species ...

General Pages

About PMN

Meet the Team Our Goals More About the Project Jennifer Maucher, Steve Morton, Elisabeth LabanMonitor & MaintainMonitor and maintain an extended survey area along coastal waters throughout the yearList of ...

Advancing Pollution Science

NCCOS conducts national and long-term research and assessments to understand the effects of contaminants, nutrients, and hypoxia. Measuring contaminants in mussels and oysters, or the breadth of the Gulf of ...

Coastal Ocean Acidification

Ocean acidification is driven predominantly by ocean uptake of atmospheric carbon dioxide (CO2), resulting in global-scale changes in ocean chemistry with predictions of broad-scale ecosystem impacts. Coastal acidification, which refers ...

Competitive Research Program

The NCCOS Competitive Research Program (CRP) funds regional-scale research through a competitive, peer-reviewed process to address our nation’s most pressing ocean and coastal issues. CRP is the extramural branch of ...

Dead Zone

Since its inception in 1990, the National Centers for Coastal Ocean Science has provided the research foundation upon which management of the "dead zone" in the Gulf of Mexico is ...

ECOHAB

The Ecology and Oceanography of Harmful Algal Blooms (ECOHAB) program funds research to understand the causes and impacts of harmful algal blooms (HABs) and their toxins, which is fundamental for ...

Forecasting and Modeling

Ecological forecasting and modeling are used to predict changes in the environment and the resulting impacts to ecosystems, people, economies, and communities. Forecasting and modeling capabilities allow NOAA to help ...

Funding Opportunities

NCCOS supports the Competitive Research Program (CRP) and the RESTORE Science Program that provide the critical information and predictive capabilities required to manage the nation’s coastal resources in an ecosystem ...

HAB Prevention

Effective HAB prevention and control must consider the HAB species, their toxicity, the causes of the bloom, how the species interact with their environment, as well as the resulting environmental ...

HAB/Hypoxia Events of National Significance

In January 2019, Congress passed an amendment to the Harmful Algal Bloom and Hypoxia Research and Control Act (PL 115-423). A key update in this legislation includes the creation of ...
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NOAA Internship Opportunities

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