An official website of the United States government. 
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.Home > john.ramsdell@noaa.gov
Projects
Aggression is a Symptom of Domoic Acid Poisoning i...
To gain a better understanding of symptoms experienced by California sea lions caused by the toxin domoic acid, we are studying the relationship between aggression and seizure behavior in laboratory ...
Ciguatoxin Impacts on Foraging Behavior in Hawaiia...
Hawaiian monk seals, which are critically endangered, inhabit the Papahānaumokuākea Marine National Monument and the Hawaiian Islands. For the first time we have identified the algal toxin ciguatoxin, the cause ...
Defining Domoic Acid Epileptic Disease
Domoic acid epileptic disease, a central nervous system disorder caused by the algal toxin domoic acid (DA), first showed up in humans in a 1987 shellfish poisoning in Quebec, Canada ...
Epileptic Disease Origins in the California Sea Li...
The womb is normally viewed as a protective environment. Sometimes drugs or toxicants can harm the fetus, even without apparent effects on the mother. A 2002 domoic acid (DA) producing ...
Fast Tool to Detect Toxic Shellfish
The marine food source and livelihood of tribes and communities along the Pacific coast are threatened by Pseudo-nitzschia blooms that produce domoic acid, a potent neurotoxin. To provide remote communities ...
New Pacific Ciguatoxins Identification and Analysi...
Ciguatoxins originate from marine algae, such as Gambierdiscus spp., enter the food web through fish, and pass to humans. To improve detection methods and better understand the production of ciguatoxins, ...
Where is all the Brevetoxin in Florida Dolphins?
After over 500 bottlenose dolphins washed ashore during a decade of Florida red tides, puzzled scientists measured little to no brevetoxin in them. An unusual mortality event occurred in 2004 ...
News
NCCOS Leads from Research to Application for Rapid...
Biotechnology that harnesses the natural biochemical systems of animals can be used to detect pathogens and toxins in environmental samples. NCCOS has supported the development of biotechnology to identify harmful ...
Red Tide Toxin Metabolite Accumulates in Organs, M...
Credit: J. Ramsdell, NOAA In 2012, the state of Texas experienced the longest red tide on record, leading to a collapse of its oyster industry. Red tides in the Gulf of ...
Common Brevetoxin Metabolite Found in Gulf of Mexi...
Brevetoxin B2 - an abundant shellfish metabolite of brevetoxin found in Gulf of Mexico oysters - does not readily pass through an intestinal barrier, rendering it unlikely to cause neurotoxic ...
Blood Monitoring Supports Response and Rehabilitat...
Sea turtles in the Gulf of Mexico are long-lived animals that are valuable indicator species of environmental health. They are subject to multiple hazards, such as pollutants and natural toxins, ...
Research Shows Shellfish Metabolism of Red Tide To...
As recent as 2012, Texas was impacted by the longest red tide on record, leading to the collapse of its oyster industry and the Governor to seek disaster assistance from ...
Products
Maps, Tools & Applications
No posts found.
Data & Publications
No posts found.
General Pages
No posts found.
NOAA Internship Opportunities
No posts found.
Query time: 0.36 secs
About NCCOS
NCCOS delivers ecosystem science solutions for stewardship of the nation’s ocean and coastal resources to sustain thriving coastal communities and economies.
Quick Links
Website Owner: National Centers for Coastal Ocean Science
USA.gov | Department of Commerce | National Oceanic and Atmospheric Administration | National Ocean Service
Copyright 2023 | Privacy Policy | Accessibility | Disclaimer | Survey | Freedom of Information Act