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Harmful Algal Blooms threaten human and ecosystem health, and disrupt aquaculture and wild fisheries, tourism, and other resources in marine and freshwater systems.

What are Harmful Algal Blooms (HABs)?

Marine and fresh waters teem with life, much of it microscopic and most of it beneficial and harmless. There are, however, some species of algae and cyanobacteria that cause harm, either through the production of potent toxins or through the accumulated biomass during their “blooms”. Impacts include human and wildlife illness and mortality, ecosystem disruption, and economic losses to coastal communities.

HAB Species

Learn about different toxic or harmful algal species, and the poisoning syndromes they cause

Maps

See where harmful algae are distributed in the U.S. and around the world

Impacts

Discover how harmful algal blooms impact human health and coastal economies, wildlife, ecosystems, and more

Research

Learn about the national and international research programs focused on understanding, managing, and preventing harmful algal blooms

Resources

Major programmatic and informational resources regarding harmful algal blooms, as well as fact sheets and hotlines

Response

Programs and activities focused on prediction, control, mitigation, and HAB event response

News and Announcements

US HAB Early Career Symposium

February 16, 2021

We are pleased to announce the 10.5 US Symposium on Harmful Algae, with the conference theme Emerging Voices and Blooming Careers. This meeting will be held virtually from May 25-27, 2021. Due to the Covid-19 pandemic, the local organizing committee and the US National HAB Committee decided to postpone the 11th US Symposium on Harmful…

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Marine Botany Course at University of Washington

February 16, 2021

Applications are now open for a summer field course in the principles, methods, and applications of marine algal biodiversity studies with a focus on the macroalgae of marine benthic environments. The course will be taught in-person by Dr. Thomas Mumford and Wilson Freshwater at Friday Harbor Labs, University of Washington. For more information on the…

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“Framework for the National Harmful Algal Bloom Observing Network: A Workshop Report” Now Available

January 13, 2021

This framework is a production of a workshop hosted by the National Centers for Coastal Ocean Science (NCCOS) and U.S. Integrated Ocean Observing System (IOOS), with representatives from five Line Offices of the National Oceanic and Atmospheric Administration (NOAA). The report is now available here.

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66th Edition of Harmful Algae News Released

December 23, 2020

A collaboration between the IOC and UNESCO, Harmful Algae News is a free newsletter describing recent updates in the global study of HABs, as well as publicizing networking and training opportunities for professionals. The newsletter can be found here.

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New! Compilation of position listings and opportunities

December 14, 2020

Please visit our position listings to view job postings and opportunities for graduate students and postdocs. If you wish to post a position or opportunity here, please contact Harmful-Algae@whoi.edu.

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Funding Opportunity – IOSS Coastal & Ocean Modeling Testbed Project

December 11, 2020

The IOOS FY21 Coastal and Ocean Modeling Testbed grant opportunity has been released, and includes a research objective related to HABs. “Finding efficient approaches to transition ecosystem models (including, but not limited to, ocean acidification, harmful algal bloom (HAB), hypoxia, and pathogens) for incorporation into existing physical modeling frameworks.” For more information about the testbed…

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Fall Edition of Great Lakes HABs Newsletter Now Available

November 23, 2020

Published quarterly, the HABs Collaborative Newsletter provides updates on the current work being conducted by the Collaborative and its members. The Fall Edition of the Newsletter is now available HERE.

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Small Business Innovation Research (SBIR) Program Call for Proposals

October 21, 2020

The NOAA Small Business Innovation Research (SBIR) Program is soliciting proposals for Phase 1 applications, due on January 13, 2021.  This opportunity is open to small businesses involved in research and development.  HABs are specified in two of the topic areas: “Omics in Monitoring and Detection” and “Uncrewed Systems”.  Information about this opportunity is available…

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65th Issue of Harmful Algae News Released

September 29, 2020

A collaboration between the IOC and UNESCO, Harmful Algae News is a free newsletter describing recent updates in the global study of HABs, as well as publicizing networking and training opportunities for professionals. The newsletter can be found here.

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Conferences, meetings, workshops, and other events

June 2, 2020

A timeline of upcoming conferences, meetings, workshops, and other events of interest to the HAB community is available under the “Resources” menu of this website. Information regarding events that have been rescheduled due to COVID-19 will be posted as it becomes available. Click here for more information.

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