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Harmful Algae & Red Tide Regional Map

Map View About HAB News What Are HABs? HAB Species
Follow the links above to learn more about harmful algal blooms (HABs), HAB species, and collection procedures. Click a station on the map below to view data on potential harmful algal species and water conditions at regional stations.

The Scripps Plankton Camera System is an underwater microscope that dectects objects from tens of microns up to several centemeters. Mounted along side the SCCOOS CTD/Fluorometer on the Scripps Pier, images from the SPC camera can be viewed in realtime and searched by date, size and aspect ratio with the SPCView (Plankton Camera Image Browser).
13 April 2017 - Harmful Algal Bloom/Domoic Acid Event in Orange County

The Pacific Marine Mammal Center in Laguna Beach is seeing an uptick in strandings of sea lions, particularly pregnant females, from domoic acid poisoning. 

13 April 2017 - Consumers Urged Not to Eat Sport-Harvested Bivalve Shellfish from Santa Barbara County

The California Department of Public Health (CDPH) today warned consumers not to eat recreationally harvested bivalve shellfish (such as mussels, clams or whole scallops) in Santa Barbara County, including the northern Channel Islands. Dangerous levels of domoic acid have been detected in mussels from this region, making them unsafe to consume.

PDT - Pacific Daylight Time (UTC-7) Summer (Apr-Oct)
PST - Pacific Standard Time (UTC-8) Winter (Nov-Mar)
more information
Note: Harmful algal bloom data is collected for the purpose of scientific study and is not intended to be used as an indicator of health or safety. For information on quarantines and statewide HAB updates, please visit the California Department of Public Health website. For information on water safety and beach closures, please visit the Heal the Bay Beach Report Card website at For official reports on water quality and beach safety, please visit the California State Water Resources Control Board at
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