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HAB Species, organized by syndrome

The below table lists major HAB poisoning syndromes and other harmful impacts.  This information is adapted from the IOC UNESCO Taxonomic Reference List (please visit the the IOC Harmful Algal Programme for additional information: http://www.marinespecies.org/hab)

To view information organized by HAB poisoning syndrome/impact, please click here.  Additional information regarding freshwater HAB taxa can be found on the EPA's CyanoHAB website: https://www.epa.gov/cyanohabs.

SyndromeCausative OrganismsAffected Areas
Amnesic shellfish poisoning (ASP)Pseudo-nitzchia spp.U.S. West coast including Alaska
Atlantic Canada
Georges Bank
Gulf of Maine
Chile
Australia
New Zealand
United Kingdom
Azaspiracid shellfish poisoning (AZP)Azadinium spp.  England
Scotland
Ireland
France
Spain
Morocco
Norway
Ciguatera fish poisoning (CFP)Gambierdiscus spp. (benthic)Hawaii
Gulf of Mexico
Puerto Rico
Caribbean
Australia
many Pacific islands
Diarrhetic shellfish poisoning (DSP)Dinophysis spp.
Prorocentrum lima
U.S. Gulf coast
U.S. West coast
U.S. Northeast coast
Europe
Japan
Atlantic Canada
South Africa
Chile
Thailand
New Zealand
Australia
Neurotoxic shellfish poisoning (NSP)Karenia brevis
Karenia brevisulcatum
and others
U.S. Gulf coast
New Zealand
Paralytic shellfish poisoning (PSP)Alexandrium spp.
Gymnodinium catenatum
Pyrodinium bahamensevar.
compressum and others
U.S. West coast including Alaska
New England coastal states
Canada
Chile
Brazil
Europe
South Africa
Asia
Australia
New Zealand
Swimmer's itch
Dermatitis
Lyngbya Australia
Florida
Worldwide throughout the tropics and subtropics
Respiratory IrritationKarenia brevis
(aerosolized toxin)
Cyanobacteria
(aerosolized toxin)
Ostreopsis spp.
(aerosolized)
macroalgae
(decomposition products),
Florida and Gulf of Mexico