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Projects

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 ...

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 ...

Early Warning for Amnesic Shellfish Poisoning in t...

This project will help mitigate HAB-related disruptions to highly productive Gulf of Maine shellfisheries with new knowledge, observing technology advances, and enhanced capacity to deliver early warnings and forecasts of ...

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 ...

Expansion of Anatoxin-a Monitoring Methods for Har...

This project will improve monitoring and response to harmful blooms of cyanobacteria by expanding the utility of an existing analytical method for detecting members of the anatoxin-a family, a toxin ...

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 ...

HABs in the Kodiak Archipelago: HAB Monitoring and...

Locations of monitoring beaches for shellfish toxicity in the Chiniak Bay study area, Kodiak Archipelago, Alaska. The project will enhance an existing HAB monitoring framework built by the Kodiak Area ...

Harmful Algal Bloom Detection Instrument Validatio...

We are improving detection of species of the toxin-producing alga Alexandrium in the field by producing highly portable, efficient, and effective biosensors. Alexandrium can be hard to identify and sample, ...

Harmful Algal Bloom Event Response: Helping New Yo...

Emergency funds from NCCOS allowed New York to monitor algal toxins during a bloom event that coincided with a state spending freeze. Shellfish consumers and the reputation of one of ...

Harmful Algal Blooms Event Response: Responding to...

We helped Alaska state regulators, the shellfish industry, and community leaders initiate routine, rapid screening of noncommercial shellfish in southeast Alaska for paralytic shellfish poisoning (PSP) toxins. We also worked ...

News

NOAA Awards $15.2M for Harmful Algal Bloom Researc...

An LRAUV makes its way through the green, algae-rich waters of Lake Erie to track the 2019 harmful algal bloom.Credit: Ben Yair Raanan, Monterey Bay Aquarium Research Institute (MBARI) NOAA ...

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 ...

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 ...

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 ...

Natural Algicide Eliminates Toxic Algae With Minim...

NCCOS-sponsored research on a natural algicide produced by Shewanella bacteria found that the compound can kill toxic algae without much harm to other organisms. The findings suggest that nature itself ...

Ecosystem Approach to Everglades Water Flow Needed...

A new study partially funded by the NCCOS Ecology and Oceanography of Harmful Algal Blooms (ECOHAB) Program describes the various stressors that have impacted South Florida ecosystems over the last ...

HAB Bulletin Supports Quinault Tribal Access to Ra...

On April 12, 2021, the Quinault Indian Nation welcomed tribal razor clam diggers to Mocrocks Beach, Washington. This is the first time tribal members have been able to access this ...

U.S. Socio-economic Effects of Harmful Algal Bloom...

NCCOS Competitive Research Program (CRP) and the U.S. National Office for Harmful Algal Blooms at the Woods Hole Oceanographic Institution (WHOI) released proceedings from a 2020 workshop on the socio-economic ...

New Study Describes Transport of Toxic Freshwater ...

An NCCOS-sponsored study found that freshwater cyanobacteria, and their toxins, produced in a compartmentalized California estuary can accumulate and enter marine waters episodically, particularly during storms and significant tidal exchange ...

Algal Cyst Sampling in Alaska Advances Multi-Regio...

Sediment collection in Chiniak Bay, near Kodiak Alaska. Credit: Julie Matweyou, Alaska Sea Grant NCCOS funded partners recently completed field work in Kodiak Alaska to continue advancing a coordinated, multi-region ...

Products

Maps, Tools & Applications

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Data & Publications

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 ...

Identification of Azadinium species and a new azaspiracid from Azadinium poporum in Puget Sound, Washington State, USA

The identification of a new suite of toxins, called azaspiracids (AZA), as the cause of human illnesses after the consumption of shellfish from the Irish west coast in 1995, resulted in interest in understanding the global distribution of these toxins ...

Initiation and Development of a Toxic and Persistent Pseudo-nitzschia Bloom off the Oregon Coast in Spring/Summer 2015

In spring/summer 2015, a toxic bloom by the diatom Pseudo-nitzschia (PN) occurred along the west coast of the United States which led to closures of the harvest of razor clams and Dungeness crabs. Twice monthly observations of temperature, salinity, nutrients, ...

Macro- to Fine-Scale Spatial and Temporal Distributions and Dynamics of Phytoplankton and Their Environmental Driving Forces in a Small Montane Lake in Southern California, USA

A wireless network of buoys, two autonomous robotic boats, and an autonomous tethered vertical profiling system were used to characterize phytoplankton dynamics and spatiotemporal changes in chemical and physical forcing factors in a small montane lake (Lake Fulmor, Idyllwild, California) ...

Mitigating the Expansion of Harmful Algal Blooms Across the Freshwater-to-Marine Continuum

Anthropogenic nutrient overenrichment, coupled with rising temperatures, and an increasing frequency of extreme hydrologic events (storms and droughts) are accelerating eutrophication and promoting the expansion of harmful algal blooms (HABs) across the freshwater-to-marine continuum. All HABs—with a focus here on ...

Monitoring Approaches for Early Warning of Domoic Acid Events in Washington State

On the U.S. west coast, blooms of the potentially toxic diatom Pseudo-nitzschia can cause amnesic shellfish poisoning (ASP), resulting in economic impacts to coastal economies and public health concerns. The transfer of toxin, via filter feeding of Pseudo-nitzschia or ingestion ...

Monitoring Oregon Coastal Harmful Algae: Observations and Implications of a Harmful Algal Bloom-Monitoring Project

The accumulation of domoic acid (DA) and saxitoxins (STX), phycotoxins produced by some species of Pseudo-nitzschia and Alexandrium, respectively, in coastal food webs are a focus of research on the West Coast of the United States due to the deleterious ...

Multiple Stressors at the Land-Sea Interface: Cyanotoxins at the Land-Sea Interface in the Southern California Bight

Blooms of toxic cyanobacteria in freshwater ecosystems have received considerable attention in recent years, but their occurrence and potential importance at the land-sea interface has not been widely recognized. Here we present the results of a survey of discrete samples ...

Nitrogenous Nutrients Promote the Growth and Toxicity of Dinophysis acuminata during Estuarine Bloom Events

Diarrhetic Shellfish Poisoning (DSP) is a globally significant human health syndrome most commonly caused by dinoflagellates within the genus Dinophysis. While blooms of harmful algae have frequently been linked to excessive nutrient loading, Dinophysis is a mixotrophic alga whose growth ...

Ocean warming since 1982 has expanded the niche of toxic algal blooms in the North Atlantic and North Pacific oceans

Global ocean temperatures are rising, yet the impacts of such changes on harmful algal blooms (HABs) are not fully understood. Here we used high-resolution sea-surface temperature records (1982 to 2016) and temperature-dependent growth rates of two algae that produce potent ...

General Pages

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NOAA Internship Opportunities

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