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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 ...
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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 ...
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Comparative Analysis of Quantitative Detection Met...

We are providing a thorough comparison of two different genetic methods used to quickly count the number of harmful algae present in a water sample. Our results will improve harmful ...
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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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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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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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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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Emerging Algal Toxins in the California Current Sy...

Surveys in California have highlighted the occurrence of HAB toxins in estuarine waters and shellfish, but there is concern that current monitoring approaches under-report the threats. There is a need ...
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Expanding the Southeast Alaska Tribal Ocean Resear...

This project expands existing harmful algal bloom (HAB) monitoring conducted by the Sitka Tribe of Alaska Environmental Research Laboratory (STAERL) to include testing shellfish for domoic acid and diarrhetic shellfish ...
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HABON-NE, An Adaptive Observing Network for Real-T...

New England coastal waters have long been impacted by Alexandrium, a species that causes paralytic shellfish poisoning.Other species have recently emerged in the Gulf of Maine, including Pseudo-nitzschia and Dinophysis, ...
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News

Virtual Training Workshop Instructs Volunteers on ...

A virtual workshop was convened at Bowling Green State University (BGSU), on July 23, 2020 to train regional stakeholder and volunteer groups in the operation of MBio Diagnostic’s LightDeck technology-based ...
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Citizen Science and the Big Picture

To really understand the nature of ecosystems and quantify the impacts of disturbance to their function, we must collect as much data as possible. The clearer the picture the better ...
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NOAA Algal Toxin Study Supports U.S. Effort to Res...

UPDATE: September 23, 2020 - FDA Finalizes First Food Safety Equivalence Determination - Resumption of Shellfish Trade with Spain and Netherlands _________________________________________________________________ A collaborative, NOAA-funded study may help resume shellfish ...
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Protecting Your Dog from Harmful Algal Blooms: Inf...

Infographic: Keeping Your Dog Safe from HABs. Transcript here | Download graphic here HAB 101: Harmful algal blooms — commonly called HABs — are found in every state in the U.S., ...
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Toxic Cyanobacteria Span Coastal Watersheds from R...

Example of the California land-sea interface: Upland reservoir ➝ river ➝ estuary ➝ Pacific Ocean. Credit M. Howard, SCCWRP Research sponsored by NCCOS finds harmful cyanobacteria (aka blue-green algae) and ...
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Pacific Northwest HAB Forecast Supports Popular Re...

Razor clamming at Twin Harbors beach, WA. Credit WDFW NOAA funded partners released the latest Pacific Northwest Harmful Algal Blooms (PNW HAB) Forecast one week ahead of a three-day razor ...
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Study Evaluates Technologies for Early Warning of ...

Passive solid-phase adsorption toxin tracking, or SPATT, employs a synthetic resin contained in a mesh bag that adsorbs dissolved biotoxins from the water. The SPATT resin bags can be suspended ...
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Products

Maps, Tools & Applications

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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 ...
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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 ...
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Blooms of Pseudo-nitzschia and Domoic Acid in the San Pedro Channel and Los Angeles Harbor Areas of the Southern California Bight, 2003-2004

Abundances of Pseudo-nitzschia spp. and concentrations of particulate domoic acid (DA) were determined in the Southern California Bight (SCB) along the coasts of Los Angeles and Orange Counties during spring and summer of 2003 and 2004. At least 1500 km2 ...
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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 ...
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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 ...
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Comparison of sandwich hybridization assay and quantitative PCR for the quantification of live and preserved cultures of Heterosigma akashiwo (Raphidophyceae)

In this study, we directly compared two molecular techniques, sandwich hybridization assay (SHA) and quantitative PCR (qPCR), for quantifying laboratory cultures of the ichthyotoxic raphidophyte Heterosigma akashiwo. To maximize comparisons, all experiments entailed raising H. akashiwo in the laboratory, generating ...
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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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Evaluation of Rapid, Early Warning Approaches to Track Shellfish Toxins Associated with Dinophysis and Alexandrium Blooms

Marine biotoxin-contaminated seafood has caused thousands of poisonings worldwide this century. Given these threats, there is an increasing need for improved technologies that can be easily integrated into coastal monitoring programs. This study evaluates approaches for monitoring toxins associated with ...
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Harmful Algae and Their Potential Impacts on Desalination Operations off Southern California

Seawater desalination by reverse osmosis (RO) is a reliable method for augmenting drinking water supplies. In recent years, the number and size of these water projects have increased dramatically. As freshwater resources become limited due to global climate change, rising ...
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General Pages

ECOHAB

Ecology and Oceanography of HABs (ECOHAB)Toxic Karenia brevis stains the water off South Padre Island, Texas, a rusty red. We fundresearch to understand the biology of harmful algae species and ...
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Funding Opportunities

NCCOS Funding OpportunitiesNCCOS 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 ...
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HABHRCA

Harmful Algal Bloom and Hypoxia Research and Control ActThe Issue Harmful algal blooms (HABs) and hypoxic events (severe oxygen depletion) are some of the most scientifically complex and economically damaging ...
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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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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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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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