Maps

U.S. maps

The following maps depict the frequency of specific HAB problems along the U.S. coast over the last ten years. These data are updated annually to generate a time series of the events.

Amnesic Shellfish Poisoning

Diarrhetic Shellfish Poisoning

Neurotoxic Shellfish Poisoning

Paralytic Shellfish Poisoning

Plant and Animal Mortalities

World maps

Amnesic Shellfish Poisoning

Azaspiracid Shellfish Poisoning

Ciguatera Fish Poisoning

Diarrhetic Shellfish Poisoning

Neurotoxic Shellfish Poisoning

Paralytic Shellfish Poisoning

Fishkills

Last updated: July 11, 2016

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The Harmful Algae Page is supported by a National Oceanic and Atmospheric Administration Center for Sponsored Coastal Ocean Research Coastal Ocean Program (NOAA/CSCOR/COP) grant to the National Office for Harmful Algal Blooms at Woods Hole Oceanographic Institution, Dr. Don Anderson, Director.