Image : Recent Trends: National changes

Reports of harmful algal blooms in U.S. waters and around the world have drastically increased in the past three decades. Researchers attribute the increase partly to excessive nutrient pollution of the water and partly to better detection of HABs by coastal monitoring programs. (Don Anderson and Jayne Doucette, WHOI Graphic Services)

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Last updated: July 31, 2012

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.