Tag

Domoic Acid

All articles tagged with #domoic acid

environment2 years ago

"Coastal Heatwave Alert: Oregon and Washington Brace for Extreme Temperatures"

An "extreme" marine heatwave, categorized as a category 4, is approaching the Oregon and Washington coasts, causing surface temperatures to be 7.2 degrees warmer than the regional average. This heatwave is impacting marine life and leading to the multiplication of algae that produce the potentially deadly neurotoxin domoic acid. The warmer temperatures are harmful to local ecosystems, potentially leading to closures of shellfish harvesting and negatively impacting fish species, including salmon. The heatwave is an extension of a previous one and is less severe than the massive heatwave known as "the Blob" that occurred between 2013 and 2016. NOAA researchers predict that the emerging El Niño pattern will further intensify ocean warming in the Pacific, affecting coastal ecosystems and marine life.

health2 years ago

Toxic Algae Bloom Threatens Marine Life and Public Health

Health officials are warning residents to avoid consuming certain shellfish due to a toxic algae bloom off the Southern California coast. The bloom contains a neurotoxin called domoic acid, which has affected marine life and caused over 100 sea lions to strand themselves on beaches. The concentration of the neurotoxin is expected to increase, posing a risk to humans who consume contaminated seafood. Symptoms of domoic acid poisoning include vomiting, diarrhea, headaches, and in severe cases, difficulty breathing, confusion, seizures, and even death. Public health officials advise residents to check for state-issued shellfish advisories before consuming seafood.

environment2 years ago

Toxic Algae Bloom Kills Hundreds of Sea Lions and Dolphins on Southern California Coast

Marine mammal rescue organizations have reported hundreds of sick and dead sea lions and dolphins along the Southern California coast this month, with experts blaming a bloom of harmful algae. The algae produces domoic acid, a neurotoxin that enters the food chain and sickens marine mammals as they eat prey. Tissue samples have been collected for tests to confirm the animals are victims of domoic acid, which is also a risk to people who eat crustaceans, fish, and shellfish that have accumulated elevated levels. The current outbreak is unusually severe, with high concentrations of domoic acid found from Orange County north to San Luis Obispo County, but especially in the Santa Barbara Channel off Santa Barbara and Ventura counties.

environment2 years ago

Toxic Algae Bloom Devastates Marine Life on California Coast

Toxic algal blooms are killing hundreds of sea lions and dolphins along the coast of California's southern beaches. More than 1,000 marine animals have become sick or died in June, according to the National Oceanic and Atmospheric Administration (NOAA). The blooms can pose a danger to humans as well. People can become sick if they consume fish packed with the toxins, though the California Department of Public Health monitors for these levels and closes shellfish beaches when necessary.

health2 years ago

Humboldt County's Recreational Razor Clam Fishery Shut Down Over Domoic Acid Threat

The California Department of Fish and Wildlife has closed the recreational razor clam fishery in Humboldt County due to the significant threat of domoic acid exposure. The toxin is produced by a naturally occurring marine alga and can cause symptoms ranging from vomiting and diarrhea to permanent loss of short-term memory or death. The recreational clam fishery in Del Norte County is also closed at this time. There is no way to prepare clams for consumption that will remove the toxin.