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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 ...
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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

Cross-Regional Comparison of Dinophysis Bloom Dyna...

Harmful algal blooms of Dinophysis have recently emerged as a human health threat in the U.S., resulting in closures of shellfish harvesting to prevent Diarrhetic Shellfish Poisoning. We are working ...
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Harmful Algal Bloom Detection and Forecasting, Other Topics, Sponsored Research, Stressor Impacts and Mitigation, Chesapeake Bay, Gulf of Mexico, Long Island Sound, New York, Puget Sound, Texas, U.S. States and Territories, Virginia, Washington, Waterbodies, quay.dortch@noaa.gov

How will Climate Change Affect Harmful Algal Speci...

We are supporting research that will determine how future increases in temperature and ocean acidity will affect harmful algal bloom species (HABs) and their grazers. Light micrograph of Karlodinium veneficum ...
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Climate Impacts on Ecosystems, Coastal Change, Harmful Algal Bloom Detection and Forecasting, Ocean Acidification, Other Topics, Sponsored Research, Stressor Impacts and Mitigation, Chesapeake Bay, Delaware, U.S. States and Territories, Waterbodies, elizabeth.turner@noaa.gov

Interannual Variability of PSP Toxicity in Eastern...

The Gulf of Maine is impacted annually by Alexandrium fundyense blooms which can result in paralytic shellfish poisoning. Paralytic shellfish poisoning (PSP) leads to significant economic impacts. The paralytic shellfish ...
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Harmful Algal Bloom Detection and Forecasting, Other Topics, Sponsored Research, Stressor Impacts and Mitigation, Atlantic Ocean, Canada, Foreign Countries, Maine, Massachusetts, New Hampshire, Rhode Island, U.S. States and Territories, Waterbodies, quay.dortch@noaa.gov

Life and Death of Karenia brevis Blooms in the Eas...

An extensive bloom of the brevetoxin-producing Karenia brevis occurred from 2017 to 2019 in Florida. The economic, environmental, and human health impacts were quite severe during this event. This regional ...
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Harmful Algal Bloom Detection and Forecasting, Other Topics, Sponsored Research, Stressor Impacts and Mitigation, Florida, Gulf of Mexico, U.S. States and Territories, Waterbodies, marc.suddleson@noaa.gov

Linking Biogeochemistry to Harmful Algal Bloom Nut...

The Long Island Brown Tide (LIBT) threatens shellfish and sea grasses in mid-Atlantic estuaries. LIBT-specific gene expression assays are being developed and tested for enzymes and transporters that allow LIBT ...
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Biological Effects of Contaminants and Nutrients, Harmful Algal Bloom Detection and Forecasting, Other Topics, Sponsored Research, Stressor Impacts and Mitigation, New York, U.S. States and Territories, quay.dortch@noaa.gov

New Tools to Aid in Managing Ciguatera Poisoning R...

Ciguatera fish poisoning is the most frequently reported non-bacterial illness associated with eating fish in the United States and the U. S. territorial islands. Ciguatera significantly impacts commercial and recreational ...
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Assessing Vulnerability and Resilience, Biological Effects of Contaminants and Nutrients, , Stressor Impacts and Mitigation, Atlantic Ocean, Caribbean Sea, Florida, Gulf of Mexico, Texas, U.S. States and Territories, U.S. Virgin Islands, Waterbodies, marc.suddleson@noaa.gov

Oceanographic and Cellular Controls on Domoic Acid...

Domoic acid is a neurotoxin produced by some diatoms in the genus Pseudo-nitzschia. Domoic acid can accumulate in shellfish and fish, and cause illness or death in humans, marine mammals, ...
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Harmful Algal Bloom Detection and Forecasting, Other Topics, Sponsored Research, Stressor Impacts and Mitigation, California, U.S. States and Territories, maggie.broadwater@noaa.gov

Resolving the Effects of Resource Availability, Pr...

Aureococcus anophagefferens causes brown tides that have severely impacted fisheries, seagrass beds, and aquaculture in mid-Atlantic US coastal waters for three decades. The recent sequencing of the Aureococcus genome, combined ...
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Harmful Algal Bloom Detection and Forecasting, Other Topics, Sponsored Research, Atlantic Ocean, Long Island Sound, New York, U.S. States and Territories, Waterbodies, quay.dortch@noaa.gov

Towards a Predictive Understanding of Our Ecosyste...

Cyanobacteria blooms and toxin production are an urgent contemporary problem in the US and worldwide. Water quality models are important tools for managing these problems, but currently the utility of ...
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Harmful Algal Bloom Detection and Forecasting, Other Topics, Sponsored Research, Stressor Impacts and Mitigation, Great Lakes, Massachusetts, Tennessee, U.S. States and Territories, Waterbodies, felix.martinez@noaa.gov

News

Seasonal Differences in Gambierdiscus Abundance, T...

An NCCOS-sponsored study provides the most comprehensive and quantitative assessment to date of the in situ toxicity of Gambierdiscus marine dinoflagellates in the Caribbean. Study findings have implications for the ...
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November 29, 2021 Harmful Algal Bloom Detection and Forecasting, Other Topics, Sponsored Research, Stressor Impacts and Mitigation, Atlantic Ocean, Caribbean Sea, U.S. States and Territories, U.S. Virgin Islands, Waterbodies, marc.suddleson@noaa.gov

Climate Change Likely to Worsen Impact of Urban Ru...

The downtown Los Angeles skyline. Credit Wikimedia Commons. An NCCOS-funded study found that nutrient-laden, urban runoff is fueling algal blooms in Southern California's coastal waters that are acidifying the water ...
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November 9, 2021 CHRP, Coastal Change, Harmful Algal Bloom Detection and Forecasting, Hypoxia, Ocean Acidification, Other Topics, Sponsored Research, Stressor Impacts and Mitigation, California, Pacific Ocean, U.S. States and Territories, Waterbodies, kimberly.puglise@noaa.gov

Understanding Blooms of Dinoflagellate Margalefidi...

Margalefidinium polykrikoides (previously known as Cochlodinium polykrikoides) is a toxic dinoflagellate algae found in Chesapeake Bay. NCCOS sponsored scientists at Old Dominion University used a time-dependent model to assess environmental ...
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November 2, 2021 Harmful Algal Bloom Detection and Forecasting, Other Topics, Sponsored Research, Stressor Impacts and Mitigation, Atlantic Ocean, Chesapeake Bay, U.S. States and Territories, Virginia, Waterbodies, maggie.broadwater@noaa.gov

Study Confirms Red Tide’s Self-sustaining Seasonal...

An NCCOS-sponsored study has validated a 40-year old theory that the Chesapeake Bay bloom-forming harmful alga Prorocentrum minimum has a seasonal life strategy that depends on physical transport by estuarine ...
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October 6, 2021 Harmful Algal Bloom Detection and Forecasting, Other Topics, Sponsored Research, Stressor Impacts and Mitigation, Atlantic Ocean, Chesapeake Bay, Maryland, U.S. States and Territories, Virginia, Waterbodies, quay.dortch@noaa.gov

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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August 30, 2021 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, marc.suddleson@noaa.gov

Report on U.S. Marine HABs: History, Current Statu...

NCCOS recently supported a review of the status of marine HAB problems in the U.S., part of a global statistical analysis of harmful algal blooms (HAB) events. The study relies ...
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July 15, 2021 Harmful Algal Bloom Detection and Forecasting, Other Topics, Sponsored Research, Stressor Impacts and Mitigation, U.S. States and Territories, Waterbodies, maggie.broadwater@noaa.gov

Harmful Algal Bloom Symposium Highlights Early Car...

Credit: 10.5 U.S. Symposium on Harmful Algae Planning Committee. The 10.5 U.S. Symposium on Harmful Algae held at the end of May showcased the work of students, postdoctoral, and early ...
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July 8, 2021 Harmful Algal Bloom Detection and Forecasting, Other Topics, Outreach, Sponsored Research, Stressor Impacts and Mitigation, david.kidwell@noaa.gov, marykate.rogener@noaa.gov

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 ...
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May 3, 2021 Biological Effects of Contaminants and Nutrients, Harmful Algal Bloom Detection and Forecasting, Other Topics, Sponsored Research, Stressor Impacts and Mitigation, Water Quality, Florida, Gulf of Mexico, U.S. States and Territories, Waterbodies, marc.suddleson@noaa.gov, marykate.rogener@noaa.gov

Toxic Alga Dinophysis an Emerging Threat to Human ...

Mesodinium rubrum (left cell) captured by Dinophysis cf. ovum. Modified from Mafra Jr. et al. 2016. The toxic dinoflagellate alga Dinophysis threatens human health and coastal economies through the production ...
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February 22, 2021 Harmful Algal Bloom Detection and Forecasting, Other Topics, Sponsored Research, Stressor Impacts and Mitigation, Alabama, Florida, Gulf of Mexico, Louisiana, Mississippi, Texas, U.S. States and Territories, Waterbodies, maggie.broadwater@noaa.gov

Understanding HABs Under Climate Change Requires N...

A new book compiles the current evidence on climate change and toxin producing harmful algal species in aquatic systems. A book chapter, sponsored in part by NCCOS, describes some of ...
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February 8, 2021 Climate Impacts on Ecosystems, Coastal Change, Harmful Algal Bloom Detection and Forecasting, Other Topics, Sponsored Research, Stressor Impacts and Mitigation, Foreign Countries, U.S. States and Territories, quay.dortch@noaa.gov

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