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Study of Freshwater Turtles to Improve Treatment of Toxins in Sea Turtles

New research is paying off long-term for endangered sea turtles facing illness and even death during Florida red tides. From 2011-2014, the NCCOS sponsored project “Brevetoxin Metabolism and Physiology – A Freshwater Model of Morbidity in Endangered Sea Turtles” used non-endangered freshwater turtles as models to determine the effects of Florida red tide on endangered sea […]

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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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Native Alaskans Trained in Potentially Life-saving Toxin Monitoring

Recent analyses conducted by the Sitka Tribe of Alaska Environmental Research Laboratory (STAERL) identified lethal levels of algal-produced toxin-like activity in shellfish from two Southeast Alaska sites in late May. Blue mussels, cockles, and butter clams were found to contain up to 46 times the regulatory limit for saxitoxins. Results from testing were shared with […]

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NCCOS Responds to Southern California Harmful Algal Bloom Event

Starting late March- early April 2017, researchers, managers, and animal response networks working in Southern California coastal communities noted an increase in wildlife impacts consistent with the onset of a harmful algal bloom (HAB). They observed a large die-off of seabirds in Santa Barbara, Ventura, and Los Angeles Counties and an influx of sea lions […]

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International Collaboration Investigates Ciguatoxin Toxicity Around the Globe

The first assessment of toxicity differences among the many known Gambierdiscus strains or species responsible for Ciguatera Fish Poisoning (CFP) in humans from consumption of fish contaminated with ciguatoxin was published in Harmful Algae. The international effort was led by Francesco Pisapia from IFREMER and included scientists from NOAA’s National Centers for Coastal Ocean Science, […]

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Renewed Interest to Study Ciguatera Risks in Papahanaumokuakea Marine National Monument

Dr. Alison Robertson, an NCCOS ECOHAB sponsored ciguatera expert with the University of South Alabama and Dauphin Island Sea Lab (USA\DISL), is helping the NOAA Office of National Marine Sanctuaries (ONMS) assess human health threats related to ciguatera fish poisoning in island waters within the Papahanaumokuakea Marine National Monument (PMNM). Ciguatera is a major, if not the […]

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Reducing Migratory Duck Mortality on Padre Island, TX

An extremely toxic Microcystis bloom on a pond in the Padre Island National Seashore was associated with a significant mortality of redhead ducks (Aythya americana). The primary concern is the mortality of redhead ducks that use this region as a major wintering ground. The NCCOS Event Response Program has funded a researcher from Texas A&M University […]

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2017 California Estuary Harmful Algal Bloom Monitoring Begins

Last month, NCCOS-sponsored scientists began harmful algae and algal toxin monitoring in California estuaries. The monitoring is part of a collaborative NOAA–state response to recent research showing that a mixture of marine and freshwater toxins can reside in estuarine waters. The research found that this toxic “cocktail” could also be fatal to shellfish, sea otters, […]

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