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Projects

Azaspiracid: An Emerging Algal Toxin

Azaspiracids are a group of toxins first reported in the 1990s in Western European waters and are now reported to occur along both the East and West coasts of North ...

Biscayne Bay PhycoNet

Why We Care Biscayne Bay is a coastal embayment in southeast Florida that has experienced rapid human population growth over the last century, resulting in steady declines in water and ...

Causes and Consequences of Cell Death in the Toxic...

Numerous studies have increased understanding of processes that lead to algal bloom initiation, growth, and transport but little is known about the causes of bloom decline and termination. Preliminary results ...

Characterization of an Algicidal Agent Produced by...

We examined a biological control agent isolated from a bacteria species that may provide a mechanism for halting the growth of certain types of toxic dinoflagellate harmful algal blooms. We ...

Characterization of Toxin Synthesis Pathways in To...

During the past 25 years, the abundance, range, and variety of harmful algal blooms (HABs) and their toxins have been increasing, impacting human and marine animal health through consumption of ...

Ciguatera Fish Poisoning: Identifying Toxic Specie...

Ciguatera fish poisoning (CFP) is the most common, non-bacterial, seafood illness. The condition is caused by toxins from the microalga Gambierdiscus, and can lead to diarrhea, paralysis, and, in worst ...

Ciguatoxin Impacts on Foraging Behavior in Hawaiia...

Hawaiian monk seals, which are critically endangered, inhabit the Papahānaumokuākea Marine National Monument and the Hawaiian Islands. For the first time we have identified the algal toxin ciguatoxin, the cause ...

Climate Change and Acidification Impacts on Cyanob...

The Great Lakes experience recurrent toxin-producing cyanobacterial harmful algal blooms (cHABs). While cHAB events have been well-studied in recent years, little attention has been given to acidification in the Great ...

Coastal Acidification and Harmful Algal Blooms in ...

This project aims to determine how harmful algal blooms (HABs) in New York waters respond to coastal acidification, how current and future climate change conditions will affect these HABs, and ...

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 ...

News

California Tribal Communities Ready to Monitor Cul...

Shellfish are often the lifeway for tribes along the U.S. West Coast who rely on indigenous fisheries for subsistence. However, the expanding range of harmful algal blooms (HABs) in the ...

Annual Gulf of Maine HAB Sampling Cruise Completed...

In Pisces’ wet lab, NCCOS scientists Bridget Weimer (left), Andrew Meredith (middle), and Josie Galloway (right) process a sediment sample for cyst quantification. Image Credit: Terry McTigue, NOAA. NCCOS scientists ...

NCCOS and Partners Initiate Months-Long Surveillan...

Tina Mikulski calibrates domoic acid sensors on multiple 2G ESPs at the Woods Hole Oceanographic Institution-LOSOS laboratory prior to delivery to their Fall deployment. National Centers for Coastal Ocean Science ...

2023 Lake Erie Algal Bloom More Severe than Predic...

Bloom severity index (SI) for 2002-2023. The SI is based on the amount of biomass over the peak 30-days. The 2023 bloom had a severity of 5.3. A severity below ...

NCCOS Awards $14.1M for Harmful Algal Bloom and Hy...

A beach on Saint Martin in the Caribbean (east of Puerto Rico) covered in Sargassum seaweed. Credit: NOAA AOML NCCOS is announcing $14.1 million in funding for harmful algal bloom ...

Daily Real-Time Observations Help Improve Domoic A...

A 2G ESP (inside its orange enclosure) with NCCOS domoic acid sensor onboard sits on the deck of a NOAA/NWFSC vessel enroute to deployment for the 2023 mission. Also visible ...

NOAA Announces Funding Opportunity to Advance Rese...

The NCCOS Competitive Research Program is pleased to announce a Fiscal Year 2024 Notice of Funding Opportunity (NOFO) for its Ecology and Oceanography of Harmful Algal Blooms (ECOHAB) Program. This ...

Collaborative Efforts Lead to Proactive Harmful Al...

One year after a record-breaking, toxic algal bloom of Alexandrium catenella in the Bering Strait region of Alaska, highly collaborative efforts led by Norton Sound Health Corporation (NSHC), Alaska Sea ...

Different Varieties of Microcystins Have Differing...

Research technicians from Dr. Chaffin's laboratory collect Lake Erie water samples for analysis as part of the NCCOS funded study. Models predicting the amount of Microcystis, an alga that forms ...

Products

Maps, Tools & Applications

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Data & Publications

Bloom dynamics of the red tide dinoflagellate Alexandrium fundyense in the Gulf of Maine: a synthesis and progress towards a forecasting capability

Paralytic shellfish poisoning (PSP) is a recurrent and widespread problem in the Gulf of Maine (GOM) caused by the dinoflagellate Alexandrium fundyense. Blooms of this species have been the subject of more than a decade of investigation through the ECOHAB-GOM ...

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 ...

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 ...

Causality of an extreme harmful algal bloom in Monterey Bay, California, during the 2014-2016 northeast Pacific warm anomaly

An ecologically and economically disruptive harmful algal bloom (HAB) affected much of the northeast Pacific margin in 2015, during a prolonged oceanic warm anomaly. Caused by diatoms of the genus Pseudo-nitzschia, this HAB produced the highest particulate concentrations of the ...

Characterization of Acetyl-CoA Carboxylases in the Basal Dinoflagellate Amphidinium carterae

Dinoflagellates make up a diverse array of fatty acids and polyketides. A necessary precursor for their synthesis is malonyl-CoA formed by carboxylating acetyl CoA using the enzyme acetyl-CoA carboxylase (ACC). To date, information on dinoflagellate ACC is limited. Through transcriptome ...

Chronic Low-Level Domoic Acid Exposure Alters Gene Transcription and Impairs Mitochondrial Function in the CNS

Domoic acid is an algal-derived seafood toxin that functions as a glutamate agonist and exerts excitotoxicity via overstimulation of glutamate receptors (AMPA, NMDA) in the central nervous system (CNS). At high (symptomatic) doses, domoic acid is well-known to cause seizures, ...

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 ...

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 ...

Coordinated sampling of dynamic oceanographic features with underwater vehicles and drifters

We extend existing oceanographic sampling methodologies to sample an advecting feature of interest using autonomous robotic platforms. GPS-tracked Lagrangian drifters are used to tag and track a water patch of interest with position updates provided periodically to an autonomous underwater ...

Corrigendum to "Status, Causes and Controls of Cyanobacterial Blooms in Lake Erie"

The authors regret that, during analyses of various data sets, we inadvertently used TKN (Total Kjeldahl Nitrogen) in place of TN (Total Nitrogen) for the Maumee River tributary. We now present the corrected data from the original Fig. 5 (as ...

General Pages

Cyanobacteria Algal Bloom from Satellite in Saginaw Bay, MI

Harmful Algal Bloom Monitoring SystemImages last updated: 06/17/2024 Click the next and previous arrows to view the most recent 11 usable images from the last 14 days. (You may need ...

Cyanobacteria Algal Bloom from Satellite in Western Lake Erie basin

Harmful Algal Bloom Monitoring SystemImages last updated: 06/18/2024 Click the next and previous arrows to view the most recent 14 usable images from the last 14 days. (You may need ...

ECOHAB

The NCCOS Competitive Research Program is pleased to announce a Fiscal Year 2024 Notice of Funding Opportunity (NOFO) for the Ecology and Oceanography of Harmful Algal Blooms (ECOHAB) Program. Key ...

Experimental Nowcast/Forecast Simulation

Harmful Algal Bloom ForecastsResults here represent model solutions initiated from a cyst abundance map from October, 2023, with germination, growth, and transport of Alexandrium catenella cells driven by the factors ...

FAQs

What is the NOAA HAB-OFS?The official source of forecasts regarding harmful algal blooms of Karenia brevis (commonly known as red tide) in the Gulf of Mexico and of cyanobacteria (most ...

FAQs

What is the NOAA Gulf of Mexico HAB Forecast?NOAA's Gulf of Mexico HAB Forecast provides information and operational forecasts regarding the potential development, intensification, transport and associated impacts of harmful ...

Florida Intensification Forecast

HARMFUL ALGAL BLOOM MONITORING SYSTEMThe Southwest Florida Intensification Forecast provides an early warning of red tide initiation or intensification for coastal managers and decision makers. Red tide, also known as ...

Forecast Contributors and Data Providers

Harmful Algal Bloom Forecasts In Situ Cell Count Data and/or Health Reports, for Gulf of Mexico and Lake Erie:Florida Fish and Wildlife Conservation Commission's Fish and Wildlife Research InstituteGulf of ...

Gulf of Maine Alexandrium catenella Predictive Models

Harmful Algal Bloom ForecastsAnnual Alexandrium catenella blooms in the Gulf of Maine produce potent neurotoxins that accumulate in shellfish and cause Paralytic Shellfish Poisoning (PSP) in human consumers. The following ...

Gulf of Mexico

Harmful Algal Bloom ForecastsIn the Gulf of Mexico, some harmful algal blooms are caused by the microscopic algae species Karenia brevis, commonly called red tide. Karenia brevis blooms can cause ...

NOAA Internship Opportunities

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