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A Mechanism Based Intervention for Brevetoxin Indu...

The Florida manatee inhabits environments in which blooms of the toxic dinoflagellate, Karenia brevis, frequently occur. K. brevis produces brevetoxins, that result in fish kills, contamination of shellfish, and respiratory ...

Harmful Algal Bloom Detection and Forecasting, Other Topics, Sponsored Research, Stressor Impacts and Mitigation, Atlantic Ocean, Florida, Gulf of Mexico, U.S. States and Territories, Waterbodies, maggie.broadwater@noaa.gov

A Novel Approach to Destroying Toxic 'Forever Che...

Scientists designed and implemented patented NBOT technology for destroying PFAS in this laboratory mesocosm. Credit: NOAA. Through a Cooperative Research and Development Agreement, we have designed, developed, and are now ...

Stressor Impacts and Mitigation, Water Quality, peter.moeller@noaa.gov

Advancing an Integrated HAB Detection and Monitori...

This project will improve monitoring and response to harmful blooms of cyanobacteria and marine algae and a suite of algal toxins they produce that have been documented across the freshwater ...

Harmful Algal Bloom Detection and Forecasting, Stressor Impacts and Mitigation, California, Pacific Ocean, U.S. States and Territories, Waterbodies, marc.suddleson@noaa.gov

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 ...

Coastal Change, Harmful Algal Bloom Detection and Forecasting, Stressor Impacts and Mitigation, Oregon, U.S. States and Territories, Washington, marc.suddleson@noaa.gov

Application of Clay Flocculation for Removal of Ka...

Despite routine application in Asia, clay flocculation technology to control harmful algal blooms has not been adopted in the U.S., largely because of the lack of data on U.S. ecosystems ...

Harmful Algal Bloom Detection and Forecasting, Other Topics, Sponsored Research, Stressor Impacts and Mitigation, Florida, Gulf of Mexico, U.S. States and Territories, Waterbodies, felix.martinez@noaa.gov

Application of Quantitative Molecular Methods to C...

This project supports development for two lab-based quantitative molecular methods for more rapid, accurate detection of Alexandrium catenella resting cysts in sediment from the Gulf of Maine, Puget Sound, and ...

Harmful Algal Bloom Detection and Forecasting, Other Topics, Sponsored Research, Stressor Impacts and Mitigation, Alaska, Atlantic Ocean, California, Connecticut, Maine, Massachusetts, New Hampshire, New York, Oregon, Pacific Ocean, U.S. States and Territories, Washington, Waterbodies, marc.suddleson@noaa.gov, steve.kibler@noaa.gov

Aquaculture and Eutrophication in Long Island Soun...

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 ...

Biological Effects of Contaminants and Nutrients, Coastal Aquaculture Siting and Sustainability, Marine Spatial Ecology, Stressor Impacts and Mitigation, New Hampshire, New York, U.S. States and Territories, suzanne.bricker@noaa.gov

Are Growth and Toxicity of the Dinoflagellate Alex...

Blooms of Alexandrium fundyense result in economic losses to fisheries, aquaculture, and pose public health risks. Typically, A. fundyense growth and toxicity are seen as dependent on light, temperature, and ...

Harmful Algal Bloom Detection and Forecasting, Other Topics, Sponsored Research, Stressor Impacts and Mitigation, Atlantic Ocean, Connecticut, U.S. States and Territories, Waterbodies, john.wickham@noaa.gov

Assessing Societal Impacts of Harmful Macroalgae B...

We will examine how Sargassum seaweed blooms and their mitigation in the Caribbean affect multiple dimensions of social resilience, including economic impacts, human well-being, local ecological knowledge, and individual attitudes, ...

Ecosystem Services Valuation, Harmful Algal Bloom Detection and Forecasting, Other Topics, , Sponsored Research, Stressor Impacts and Mitigation, Puerto Rico, U.S. States and Territories, U.S. Virgin Islands, felix.martinez@noaa.gov

Assessment of the Short- and Long-term Socioeconom...

This project, funded by NCCOS through the Gulf of Mexico Coastal Ocean Observing System, will comprehensively quantify and qualify the short- and long-term socioeconomic impacts of the 2017-2019 Karenia brevis ...

Ecosystem Services Valuation, Harmful Algal Bloom Detection and Forecasting, Other Topics, , Sponsored Research, Stressor Impacts and Mitigation, Atlantic Ocean, Florida, Gulf of Mexico, U.S. States and Territories, Waterbodies, marykate.rogener@noaa.gov

News

Translating Phytoplankton Monitoring Network Train...

NCCOS scientists, Dr. Steve Morton and Jennifer Maucher Fuquay along with Dr. Barbara Spiecker, cofounder of Atomic Hands, presented on the need to increase accessibility to participatory science at the ...

August 26, 2024 Harmful Algal Bloom Detection and Forecasting, Stressor Impacts and Mitigation, U.S. States and Territories, jennifer.maucher@noaa.gov, steve.morton@noaa.gov

Harmful Algal Bloom Toxin Sensor Prepared for Time...

Left: NCCOS scientists Tina Mikulski calibrating the NCCOS domoic acid toxin sensor on Environmental Sample Processor ‘ESPeddie’, in preparation for deployment off the WA coast. Right: NCCOS Scientist Rayanne Scarmeas ...

July 31, 2024 Harmful Algal Bloom Detection and Forecasting, Harmful Algal Bloom Event Response, Stressor Impacts and Mitigation, Pacific Ocean, U.S. States and Territories, Washington, rayanne.scarmeas@noaa.gov, tina.mikulski@noaa.gov

First Steps in Creating a Harmful Algal Bloom Fore...

Steve Kibler (NCCOS) deploying an instrument to collect hydrographic data from Chiniak Bay, Kodiak. The Kodiak Archipelago in Alaska historically has reported high levels of paralytic shellfish poisoning (PSP), comprising ...

July 25, 2024 Harmful Algal Bloom Detection and Forecasting, Stressor Impacts and Mitigation, Alaska, U.S. States and Territories, marc.suddleson@noaa.gov, steve.kibler@noaa.gov

Harmful Algal Bloom Impacts on Sustainable Ocean F...

Philipp Hess, Maggie Broadwater, and Don Anderson at the UN ICP-24 meeting. Philipp and Maggie currently serve as the Chair and Vice Chair, respectively, of the IOC Intergovernmental Panel on ...

July 18, 2024 Climate Impacts on Ecosystems, Coastal Change, Harmful Algal Bloom Detection and Forecasting, Stressor Impacts and Mitigation, maggie.broadwater@noaa.gov

NCCOS Supports Rapid Detection and Risk Communicat...

Timeline and structure of rapid detection and risk communication information flow from shipboard HAB detection using an Imaging FlowCytobot (IFCB) to the regional coastal response (Fachon et al. 2024 Limnology ...

July 15, 2024 Climate Impacts on Ecosystems, Coastal Change, Harmful Algal Bloom Detection and Forecasting, Harmful Algal Bloom Event Response, Stressor Impacts and Mitigation, Bering Sea, Waterbodies, maggie.broadwater@noaa.gov, sarah.pease@noaa.gov

NOAA, MBARI Achieve Groundbreaking Milestone in Us...

MBARI and GLERL scientists recover the uncrewed SPR/ESP/LRAUV platform from Lake Erie following completion of deployment. Credit: Christina Preston © MBARI. Would you have ever thought it possible to send ...

July 1, 2024 Harmful Algal Bloom Detection and Forecasting, Sensor Development, Stressor Impacts and Mitigation, Great Lakes, Waterbodies, greg.doucette@noaa.gov, tina.mikulski@noaa.gov

Moderate to Above-Moderate Algal Bloom Predicted f...

Bloom severity forecast compared to previous years. The wide red bar is the likely range of severity based on the different models used and reflect uncertainty in the July total ...

June 27, 2024 Harmful Algal Bloom Detection and Forecasting, Stressor Impacts and Mitigation, Great Lakes, Michigan, Ohio, U.S. States and Territories, Waterbodies, alexandria.hounshell@noaa.gov, richard.stumpf@noaa.gov

Inspiring Students to Embrace Their Culture Throug...

NOAA’s National Centers for Coastal Ocean Science is embarking on a new partnership that combines science and tradition to help preserve a rich culture in South Carolina’s Lowcountry. The NCCOS ...

June 24, 2024 Harmful Algal Bloom Detection and Forecasting, Stressor Impacts and Mitigation, Water Quality, South Carolina, U.S. States and Territories, Nia.Rene@noaa.gov

Oregon Paralytic Shellfish Poisoning Outbreak Prom...

NOAA’s National Centers for Coastal Ocean Science (NCCOS) Harmful Algal Bloom (HAB) Event Response Program awarded $6,000 to the University of Washington’s Olympic Natural Resources Center, Northwest Indian College, and ...

June 12, 2024 Harmful Algal Bloom Event Response, Stressor Impacts and Mitigation, Oregon, U.S. States and Territories, Washington, marc.suddleson@noaa.gov, sarah.pease@noaa.gov

Low Gulf of Maine Red Tide Predicted for 2024

Figure 1. Concentration of Alexandrium cysts in Gulf of Maine bottom sediments (cells/cm²), collected in October 2023. Credit: NOAA/NCCOS. Researchers with NOAA’s National Centers for Coastal Ocean Science (NCCOS) are ...

May 30, 2024 Harmful Algal Bloom Detection and Forecasting, Stressor Impacts and Mitigation, Gulf of Maine, Maine, Massachusetts, New Hampshire, U.S. States and Territories, Waterbodies, yizhen.li@noaa.gov

Products

Maps, Tools & Applications

Harmful Algal Bloom Monitoring System

Harmful algal blooms (HABs), sometimes known as "red tide", occur when certain kinds of algae grow very quickly, forming patches, or "blooms", in the water. These blooms can emit powerful toxins which endanger human and animal health. NCCOS conducts and funds research that helps communities protect the public and combat blooms in cost-effective ways, and we are breaking new ground in the science of stopping blooms before they occur.
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Data & Publications

A decade and a half of Pseudo-nitzschia spp. and domoic acid along the coast of southern California

Blooms of the marine diatom genus Pseudo-nitzschia that produce the neurotoxin domoic acid have been documented with regularity along the coast of southern California since 2003, with the occurrence of the toxin in shellfish tissue predating information on domoic acid ...

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 quantitative real-time PCR assay for the identification and enumeration of Alexandrium cysts in marine sediments

Harmful algal blooms (HABs) are a global problem that affects both human and ecosystem health. One of the most serious and widespread HAB poisoning syndromes is paralytic shellfish poisoning, commonly caused by Alexandrium spp. dinoflagellates. Like many toxic dinoflagellates, Alexandrium ...

An unprecedented coastwide toxic algal bloom linked to anomalous ocean conditions

A coastwide bloom of the toxigenic diatom Pseudo-nitzschia in spring 2015 resulted in the largest recorded outbreak of the neurotoxin, domoic acid, along the North American west coast. Elevated toxins were measured in numerous stranded marine mammals and resulted in ...

Analyses of the complete chloroplast genome sequences of two members of the Pelagophyceae: Aureococcus anophagefferens CCMP1984 and Aureoumbra lagunensis CCMP1507

Heterokont members of the Pelagophyceae form the massive brown tides that have continually plagued the coastal regions of the eastern U.S. seaboard and the Gulf of Mexico. To gain a better understanding of the photosynthetic competence that may be linked ...

Biological, chemical, and physical data from the Phytoplankton Monitoring Network from 13 Sep 2001 to 7 Mar 2013 (NODC Accession 0117942)

The Phytoplankton Monitoring Network (PMN) is a part of the National Centers for Coastal Ocean Science (NCCOS). The PMN was created as an outreach program to connect volunteers and professional scientists in the monitoring of marine phytoplankton and harmful algal ...

Blurred lines: Multiple freshwater and marine algal toxins at the land-sea interface of San Francisco Bay, California

San Francisco Bay (SFB) is a eutrophic estuary that harbors both freshwater and marine toxigenic organisms that are responsible for harmful algal blooms. While there are few commercial fishery harvests within SFB, recreational and subsistence harvesting for shellfish is common ...

Climatic regulation of the neurotoxin domoic acid

Domoic acid is a potent neurotoxin produced by certain marine microalgae that can accumulate in the foodweb, posing a health threat to human seafood consumers and wildlife in coastal regions worldwide. Evidence of climatic regulation of domoic acid in shellfish ...

Detecting toxic diatom blooms from ocean color and a regional ocean model

An apparent link between upwelling-related physical signatures, macronutrients, and toxic diatom blooms in the various hotspots throughout California has motivated attempts to forecast harmful algal blooms (HABs) as a function of select environmental variables. Empirical models for predicting toxic Pseudo-nitzschia ...

Domoic acid and fish behavior: A review

This paper provides a summary of the state of knowledge regarding behavioral impacts of domoic acid exposure on fish. Initial studies by authors of this paper suggested that fish are behaviorally impacted by domoic acid in the same way that ...

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