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Why the Exceptional Toxicity during the 2015 West Coast Harmful Algal Bloom?

New research sponsored by NCCOS explains what might have caused the high toxicity in Monterey Bay, CA during the massive 2015 toxic bloom of the marine diatom Pseudo-nitzschia along the West Coast of the United States. Based on NCCOS research, warm water, nutrients, or a combination of factors may have caused the bloom and to some extent […]

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Sensor Provides Early Warning of Toxic Algal Bloom in Offshore Waters of Monterey Bay

NCCOS-developed domoic acid sensors on board two Environmental Sample Processors (ESPs) deployed in Monterey Bay, California have provided early warning of a toxic Pseudo-nitzschia algal bloom. Only a week into the deployment that began in early May, particulate domoic acid levels exceeded 30 micrograms per liter of seawater, which was consistent with the ESPs also detecting very high concentrations […]

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Monterey Bay National Marine Sanctuary Seeks Advice on Harmful Algal Bloom Threat

Five NOAA National Marine Sanctuaries on the west coast are vulnerable to harmful algal blooms, including blooms of Pseudo-nitzschia, which at times produce domoic acid—a potent neurotoxin that can accumulate in many animals. Consumption of toxic prey leads to illness and death in a variety of birds and marine mammals and necessitates shellfish harvesting closures […]

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High Tech Sensors Used to Investigate Harmful Algal Bloom ‘Hot Spots’ in California

NCCOS scientists and their partners from the Monterey Bay Aquarium Research Institute (MBARI) are investigating the causes of Pseudo-nitzschia blooms and toxicity in Monterey Bay, Calif. from Sept. 5 to Oct. 10. Under the right conditions, some Pseudo-nitzschia produce domoic acid, a potent neurotoxin. Domoic acid accumulates in fish and shellfish, has caused bird and […]

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