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Products & Data

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Internships

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Projects

AquaSpace – An Ecosystem Approach to Making Space ...

Aquaculture is a large and growing segment of seafood production because capture fisheries production continues to decline. A major challenge to the expansion of marine aquaculture in most nations is ...
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Eutrophication and Oyster Aquaculture in the Patux...

Eutrophication is the overabundance of nutrients in a body of water that results in harmful algal blooms, fish kills, and in some cases ecosystem collapse. We are investigating the feasibility ...
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Eutrophication and Oyster Aquaculture in the Potom...

Eutrophication is the overabundance of nutrients in a body of water that results in harmful algal blooms, which can lead to depletion of dissolved oxygen and loss of fish and ...
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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 ...
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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 ...
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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) ...
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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 ...
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Integrated Ecosystem Modeling of the Causes of Hyp...

The largest low oxygen (hypoxic) zone affecting the United States is in the northern Gulf of Mexico, adjacent to the Mississippi River. This “dead zone” in the Gulf of Mexico ...
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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, ...
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Mechanisms Controlling Hypoxia – Glider Applicatio...

We are evaluating the use of gliders to improve Gulf of Mexico hypoxic zone monitoring. Once the efficacy of this technology is confirmed, we will develop a comprehensive plan that ...
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News

NCCOS and NGI Lead First Fisheries Monitoring Work...

Monitoring dead zone oceanographic parameters and understanding how hypoxia impacts fisheries in the region is key to a successful Cooperative Hypoxia Assessment and Monitoring Program. Credit: LUMCON NCCOS and NOAA’s ...
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Mitigation Strategies for Harmful Algal Blooms Spa...

New NCCOS-sponsored research describes a paradigm shift in our understanding of the conditions that control eutrophication (nutrient overenrichment) and harmful algal blooms (HABs) across the freshwater-to marine continuum, and offers ...
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NCCOS and NGI Lead Seventh Annual Hypoxia Research...

NCCOS is working with the Northern Gulf Institute (NGI) and Gulf of Mexico State partners to develop a robust and sustainable Gulf of Mexico-wide monitoring program for hypoxia. At the ...
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Modeling Coastal Hypoxia: NCCOS Sponsored Research...

A new book highlights NCCOS sponsored hypoxia modeling. It contains original research on numerical simulations of the patterns, controls, and effects of dissolved oxygen dynamics. The book, Modeling Coastal Hypoxia, ...
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World’s Oceans Facing Oxygen Decline

Low-oxygen zones are spreading around the globe. Red dots mark places on the coast where oxygen has plummeted to 2 milligrams per liter or less, and blue areas mark zones ...
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Multi-pronged Modeling Yields New Guidance to Miti...

Several NOAA-sponsored models took center stage at a recent meeting of the Mississippi River/Gulf of Mexico Hypoxia Task Force Coordinating Committee. Results from the models offered the task force new guidance ...
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NCCOS Awards $1.7M to Harmful Algal Bloom and Toxi...

The National Centers for Coastal Ocean Science (NCCOS) awarded $1.68M (million) in Fiscal Year 2017 funding for nine research projects to identify conditions increasing bloom toxicity, model toxin movement from ...
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Study Provides Nutrient Reduction Targets to Reach...

The Mississippi River/Gulf of Mexico Hypoxia Task Force (HTF) has made major strides in reducing point source nutrient pollution in the Gulf of Mexico watershed, and had some success in mitigating nonpoint ...
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Gulf of Mexico ‘Dead Zone’ Largest Ever Measured

Scientists have determined this year’s Gulf of Mexico “dead zone,” an area of low oxygen that can kill fish and marine life, is 8,776 square miles, an area about the ...
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Scientists Expect Slightly Below Average Chesapeak...

Low river flow and nutrient loading reason for smaller predicted size Scientists are expecting that this year's Chesapeake Bay hypoxic low-oxygen zone, also called the 'dead zone,' will be approximately ...
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Products

Maps, Tools & Applications

The NCCOS Geoportal is an online data explorer providing discovery and access to the full catalogue of NCCOS-funded scientific data, including archived data accessions, metadata records, and web services. To discover data, enter a word or phrase in the text box and click on “Search” to conduct a free text search; refine your search using additional options for content type, date, region, and spatial extent. Click on “Browse” to explore the catalogue using topical keywords. Launch the “Map Viewer” to visualise geospatial data (GIS layers) served via mapping web services.
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Data & Publications

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 ...
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An ecosystem services assessment using bioextraction technologies for removal of nitrogen and other substances in Long Island Sound and the Great Bay/Piscataqua Region Estuaries

A State-Environmental Protection Agency (EPA) Nutrient Innovations Task Group concluded in a 2009 report (State -- EPA Nutrient Innovations Task Group, 2009) that 'continuing the status quo at the national, state, and local levels and relying upon our current practices ...
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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 ...
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Assessment of hypoxia-inducible factor-1α mRNA expression in matis 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 ...
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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 ...
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Ecosystem Metabolism

This chapter contains sections titled: Introduction; Basic Definitions and Concepts; Measuring Ecosystem Metabolism; Regulating Factors and Spatial/Temporal Patterns; Ecosystem Metabolism Case Studies; Cross?Ecosystem Comparisons; Metabolic Responses to Climate Change and Variability; Conclusions; Acknowledgments; References; Citing Literature ...
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Effect of Changes in Dissolved Oxygen Concentrations on the Spatial Dynamics of the Gulf Menhaden Fishery in the Northern Gulf of Mexico

Declines in dissolved oxygen (DO) concentrations in aquatic environments can lead to conditions of hypoxia (DO ? 2 mg/L), which can directly and indirectly affect aquatic organisms. Direct effects include changes in growth and mortality; indirect effects include changes in ...
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Effects of hypoxia exposure on hepatic cytochrome P450 1A (CYP1A) expression in Atlantic croaker: molecular mechanisms of CYP1A down-regulation

Hypoxia-inducible factor-? (HIF-?) and cytochrome P450 1A (CYP1A) are biomarkers of environmental exposure to hypoxia and organic xenobiotic chemicals that act through the aryl hydrocarbon receptor, respectively. Many aquatic environments heavily contaminated with organic chemicals, such as harbors, are also ...
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Effects of Nutrient Enrichment In the Nation’s Estuaries: A Decade of Change

The National Estuarine Eutrophication Assessment (NEEA) is a tool for evaluating both current eutrophic condition and the effectiveness of management actions aimed at reducing eutrophic condition. Eutrophication is caused by excess nutrients and is expressed by symptoms such as increased ...
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Effects of the Changjiang (Yangtze) River discharge on planktonic community respiration in the East China Sea

Planktonic communities tend to flourish on the western margins of the East China Sea (ECS) fueled by substrates delivered largely from the Changjiang River, the fifth largest river in the world. To study the effects of the Changjiang River discharge ...
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General Pages

CHRP

Coastal Hypoxia Research Program (CHRP) Over half of U.S. estuaries experience natural or human-induced hypoxic conditions at some time each year and the frequency and duration of hypoxic events have ...
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Dead Zone

NCCOS-Supported Research Provides Foundation for Management of the 'Dead Zone' in the Northern Gulf of MexicoSince its inception in 1990, the National Centers for Coastal Ocean Science has provided the ...
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NGOMEX

Gulf of Mexico Ecosystems & Hypoxia Assessment (NGOMEX)Program HighlightsThe northern portion of the Gulf of Mexico ecosystem, which contains almost half of the nation's coastal wetlands and supports commercial and ...
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Stressor Impacts and Mitigation

Stressor Impacts & MitigationHarmful Algal BloomsManagers of fisheries, beaches, and water treatment facilities need information on HAB detection and forecasting to plan for and deal with the adverse environmental, economic, ...
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NOAA Internship Opportunities

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NCCOS delivers ecosystem science solutions for stewardship of the nation’s ocean and coastal resources, in direct support of NOS priorities, offices, and customers, and to sustain thriving coastal communities and economies.

National Centers for Coastal Ocean Science
1305 East West Highway, Rm 8110
Silver Spring, MD 20910
Phone: (240) 533-0300 / Fax: (301) 713-4353
Email: nccos.webcontent@noaa.gov

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