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Projects

Developing a Machine Learning-Based, High Resoluti...

Blooms of Alexandrium occur in the Gulf of Maine each year and produce toxins that can accumulate in shellfish, causing Paralytic Shellfish Poisoning. Regional management agencies conduct rigorous monitoring to ...
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Developing Biomarkers for Bloom Growth and Death i...

The microscopic alga Karenia brevis causes harmful algal blooms (red tides) in the Gulf of Mexico. By studying the processes regulating the life cycle of K. brevis, we developed biomarkers ...
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Developing Practical and Affordable Water Filtrati...

We are testing the use of local, natural bacteria to destroy cyanotoxins. These toxins are produced by freshwater cyanobacteria, also known as blue-green algae, and they contaminate municipal water supplies ...
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Development and Implementation of an Operational H...

This project developed a prototype operational statistical nowcast/forecast system for three harmful algal bloom (HAB) organisms in the Chesapeake Bay ecosystem, specifically the dinoflagellates Karlodinium veneficum, Prorocentrum minimus, and the ...
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Development of a Coupled Hydrodynamic-Biogeochemic...

Harmful Algal Blooms (HABs) in the Chesapeake Bay, which threaten human and ecosystem health, are more frequent and severe than decades ago. We are developing a new model that incorporates ...
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Differences in the Toxicity of the Alga Gambierdis...

The goal of this project is to advance our understanding of toxins produced by different species of the alga Gambierdiscus and how these toxins and their varieties move through the ...
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DinoSHIELD: A Slow-release Natural Algicide Produc...

We will field test an environmentally neutral method to control harmful algal blooms. Our work will provide managers with information on the applications of a natural algicide as an environmentally ...
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ECOHAB: GOMTOX: Dynamics of Alexandrium fundyense ...

Extensive shellfish resources in the Gulf of Maine are frequently contaminated with toxins produced by the red tide dinoflagellate Alexandrium fundyense. Shellfish harvesting must be closed to protect public health ...
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Ecophysiology and Toxicity of the Toxic Alga Heter...

We are identifying toxins and environmental factors causing fish-killing blooms by the alga Heterosigma akashiwo in Puget Sound. We develop tools to improve monitoring, early warning, and mitigation to prevent ...
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Effects and Discovery of Chronic Domoic Acid Expos...

Domoic acid, a naturally occurring marine neurotoxin, threatens the health of marine mammals, seabirds, and humans via severe and long-term yet low-level exposure through the food web. Researchers discovered a ...
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News

First Real-time Toxicity Assessment of Lake Erie A...

Preparing the 3G-ESP for use on the Long-Range Autonomous Underwater Vehicle (LRAUV). Top left: NCCOS scientist inspects custom-fabricated microcystin sensor chip at Hollings Marine Laboratory in Charleston, South Carolina. Top ...
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Phytoplankton on Louisiana Shelf Show Seasonal Com...

NCCOS sponsored researchers analyzed common phytoplankton taxa and accompanying environmental data for 672 surface water samples collected from 95 stations located on the Louisiana/Texas shelf (Gulf of Mexico) between 1990 ...
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NOAA Announces FY22 Notice of Funding Opportunity ...

Lake Erie harmful algal bloom as seen from above on August 5, 2019 during a flight to assist in improvements to the NOAA HAB forecast. Credit: Aerial Associates Photography Inc, ...
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Algal Toxins Found in U.S. Seabirds

A publication sponsored in part by NCCOS presents a retrospective analysis of harmful algal bloom (HAB) related mortality events in California, Washington and Rhode Island between 2007 and 2018 involving ...
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NCCOS and IOOS Contribute to Successful Kickoff of...

On September 1, 2021 NCCOS, the U.S. Integrated Ocean Observing System (IOOSⓇ) Office, and the IOOS Association organized the inaugural meeting of a newly formed Harmful Algal Bloom Observing Group ...
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Long Term Research on the HAB Toxin Domoic Acid In...

A coalition of researchers funded by the NOAA Monitoring and Event Response for Harmful Algal Blooms (MERHAB) Program recently came together to co-locate an Environmental Sample Processor (ESP) off the ...
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Florida's HAB Problem: Why are HABs so Prevalent i...

A new publication, sponsored in part by NCCOS, reviews the history and status of harmful algal blooms in Florida, why they occur, the main species of concern and management challenges ...
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NOAA Announces FY22 Funding Opportunity for Ocean ...

NOAA’s National Centers for Coastal Ocean Science Competitive Research Program and Ocean Acidification Program are pleased to announce a new 2022 Notice of Funding Opportunity (NOFO) for projects that address ...
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Single-day Intensive Sampling Quantifies Algal Tox...

NCCOS-sponsored researchers and their partners conducted one-day intensive water sampling events in 2018 and 2019 to create high spatial resolution snapshots of the amount and locations of cyanobacterial toxins across ...
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Workshop Report Defines Agenda for Integrated Rese...

Credit NOAA OAP. NOAA’s Ocean Acidification Program (OAP) and NCCOS have published the proceedings of the virtual Harmful Algal Blooms and Ocean Acidification Workshop in a NOAA Technical Memorandum (OAR-OAP-3) ...
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Products

Maps, Tools & Applications

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Data & Publications

Detecting copepod grazing on low-concentration populations of Alexandrium fundyense using PCR

Zooplankton grazing is often a significant loss term for phytoplankton populations, including harmful algae, impacting the development and decline of blooms. However, detecting and quantifying predation on phytoplankton is often challenging, particularly during early bloom stages when phytoplankton cell concentrations ...
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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 ...
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Distance maps to estimate cell volume from two-dimensional plankton images

We describe and evaluate an algorithm that uses a distance map to automatically calculate the biovolume of a planktonic organism from its two-dimensional boundary. Compared with existing approaches, this algorithm dramatically increases the speed and accuracy of biomass estimates from ...
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Diversity and dynamics of a widespread bloom of the toxic dinoflagellate Alexandrium fundyense

Historically, cosmopolitan phytoplankton species were presumed to represent largely unstructured populations. However, the recent development of molecular tools to examine genetic diversity have revealed differences in phytoplankton taxa across geographic scales and provided insight into the physiology and ecology of ...
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Does the fall phytoplankton bloom control recruitment of Georges Bank haddock, Melanogrammus aeglefinus, through parental condition?

In 2003, the Georges Bank stock of haddock (Melanogrammus aeglefinus) experienced the largest recruitment event recorded during its assessed history. Several hypotheses have been advanced to explain recruitment variability in this much-scrutinized stock, including variability in the retention of eggs ...
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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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Drifter Observations of the Gulf of Maine Coastal Current

Two-hundred and twenty seven satellite-tracked drifters were deployed in the Gulf of Maine (GoM) from 1988 to 2007, primarily during spring and summer. The archive of tracks includes over 100,000 km logged thus far. Statistics such as transit times, mean ...
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Dynamics of a mesoscale eddy off Cape Ann, Massachusetts in May 2005

Observations and numerical modeling indicate that a mesoscale anti-cyclonic eddy formed south of Cape Ann at the northern entrance of Massachusetts Bay (MB) during May 2005, when large river discharges in the western Gulf of Maine and two strong Nor'easters ...
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Effects of an Acute Hypoxic Event on Microplankton Community Structure in a Coastal Harbor of Southern California

Fish mortality and hypoxic events occur in many coastal and inland systems and may result from natural or anthropogenically mediated processes. The effects of consequent changes in water biogeochemistry have been investigated for communities of benthic invertebrates and pelagic metazoans ...
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Effects of growth phase, diel cycle and macronutrient stress on the quantification of Heterosigma akashiwo using qPCR and SHA

The development of molecular probe technologies over the last several decades has enabled more rapid and specific identification and enumeration of phytoplankton species compared to traditional technologies, such as light microscopy. Direct comparisons of these methods with respect to physiological ...
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General Pages

Harmful Algae from Satellite for Southwest Florida

Harmful Algal Bloom Monitoring SystemHarmful Algae from Satellite for Southwest FloridaTo access the Florida Gulf of Mexico HAB Forecast System, click here. For information and updates on Tampa Bay area, ...
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Harmful Algal Bloom Monitoring System

Harmful Algal Bloom Monitoring SystemHarmful 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 ...
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Lake Erie

Harmful Algal Bloom ForecastsLake Erie Harmful Algal Bloom Forecast NOAA provides forecasts for seasonal blooms of cyanobacteria (blue-green algae) in Lake Erie, typically from July to October when warmer water ...
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MERHAB

Monitoring and Event Response (MERHAB)Our funding enhances state and regional monitoring with advanced harmful algae detection capabilities, from low-cost shellfish toxin tests to high-tech sensors at sea. (Credit: Washington State ...
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Mixing Forecast

Lake Erie Mixing ForecastForecast of the potential for mixing over at least the next 96 hours, to determine whether the majority of the bloom is at the surface,subsurface, or mixed ...
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PCMHAB

Prevention, Control, and Mitigation of HABs (PCMHAB)NCCOS projects identify and evaluate a range of methods to prevent, control or mitigate blooms of harmful algae in ways that are safe for ...
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Phytoplankton Monitoring Network (PMN)

Phytoplankton Monitoring Network (PMN)Better Understanding of Harmful Algal Blooms Through Volunteer MonitoringSubmit DataExplore DataThe National Phytoplankton Monitoring Network (PMN) is a community-based network of volunteers monitoring marine phytoplankton and harmful ...
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Rapid Response

Rapid ResponseNCCOS's rapid response provides state and local coastal public health and resource managers with ready access to critical data on the types of HAB species and toxins present during ...
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Satellite Imagery

Lake Erie Satellite ImageryCurrent Lake Erie Sentinel-3 a and b Composited Satellite Imagery from the Ocean and Land Color Imager (OLCI) as of 2021-10-26 showing bloom location and extent. Image ...
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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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