Sentences with word «domoic»

Immunomodulatory effects of domoic acid in California sea lions and southern sea otters.

Countdown the sea lion is head - weaving which is a telltale sign of domoic acid poisoning.

The species produces domoic acid.

Movement, dive behavior, and survival of California sea lions (Zalophus californianus) posttreatment for domoic acid toxicosis.

Exposure assessment of the biotoxin domoic acid in California sea lions: application of a bioenergetic model.

They make a toxin called domoic acid, which is consumed by other plankton that in turn become food for fish and other organisms.

Pseudo-nitzschia is a microscopic algae that occurs naturally in coastal waters, and is of particular concern due to its production of the neurotoxin domoic acid.

In 2012, 14 percent of the 235 sea lions brought in for treatment suffered from domoic acid poisoning.

Fish such as sardines and anchovies eat algae, some species of which contain the toxin domoic acid.

In 2002 razor clam harvesting was prohibited for the full season in Washington State because of high domoic acid levels.

Astrid Schnetzer, associate professor of marine, earth and atmospheric sciences at NC State, wanted to know how domoic acid gets transported to depth via marine snow after a toxic algal bloom and how long it may persist.

Related: Learn more about Northern fur seals and Guadalupe fur seals Learn about marine mammal rehabilitation Learn about domoic acid toxicity Learn how you can support The Marine Mammal Center Adopt - a-Seal today and suport future patient care!

«This study confirms that marine snow is a major vector in terms of getting domoic acid to depth,» Schnetzer says.

The shellfish - harvesting industry keeps a careful eye on domoic acid levels, since it can have serious consequences for human health.

«This is the missing link to explain why domoic acid also shows up in benthic organisms like crabs, shellfish and flatfish,» says Raphael Kudela at the University of Santa Cruz in California.

For example, some diatoms make domoic acid, which causes vomiting, cramping, headache and even seizures and memory loss; some dinoflagellates produce saxitoxin, which causes numbness, staggering and respiratory failure, among other symptoms.

The incident should serve as a warning that fish, in addition to shellfish, can accumulate domoic acid at levels high enough to poison people, says one of the study's authors, Frances Gulland, chief veterinarian at the Marine Mammal Center in Sausalito, California.

When domoic acid - containing Pseudo-nitzschia enter the food chain, humans can accidentally consume it via shellfish.

«Agencies like mine can use this model to anticipate domoic acid risks and prepare for periods of more intensive monitoring and testing, helping to better inform our decisions and ensure the safety of harvested crab and shellfish,» he said in a statement.

People in California are advised not to consume rock crabs or shellfish caught in Monterey Bay and Half Moon Bay because of a possible domoic acid contamination.

Review, In utero domoic acid toxicity: a fetal basis to adult disease in the California sea lion (Zalophus californianus).

Apparently he will only eat if fed by hand, and the staff suspect domoic toxicity in utero is the cause.

Other phytoplankton produce domoic acid, a neurotoxin that kills people, birds and marine mammals snacking on contaminated fish and shellfish.

Psudeo - nitzschia «Pseudo-nitzschia is a marine planktonic diatom genus containing some species capable of producing the neurotoxin domoic acid (DA), which is responsible for the neurological disorder known as amnesic shellfish poisoning (ASP).»

A rescued sea otter who suffered from Domoic acid poisoning happily swam home Tuesday morning, thanks to a growing program a Sausalito's Marine Mammal Center designed to assist the protected mammals.

«When water's unusually warm off our coast, it's because the circulation and patterns in the atmosphere has changed, bringing warm water from elsewhere — and this is happening at the same time that we also see high domoic acid in shellfish.

The Marine Mammal Center is now equipped with a new facility that can accommodate up to four otters and is looking at how domoic acid and other threats are impacting California's otter population, which is concentrated in the central part of the state.

Watch an animated video about Domoic Acid Toxicity, produced for The Marine Mammal Center by the students at the California College of the Arts.

«This paper is significant because it identifies a link between ocean conditions and the magnitude of the toxic bloom in 2015 that resulted in the highest levels of domoic acid contamination in the food web ever recorded for many species,» said co-author Kathi Lefebvre, a marine biologist at NOAA's Northwest Fisheries Science Center.

Neuroradiological and neuropathological findings associated with domoic acid exposure in Zalophus californianus (California Sea Lion): animal model for toxicity induced mesial temporal sclerosis in humans.

Levels of domoic acid and paralytic shellfish toxins were lower than the regulatory limits, but Kudela noted that some studies suggest chronic exposure to even low levels of these toxins may cause neurological impairments.

The study began in 2011 when Kudela's lab started monitoring for domoic acid and microcystins in the water during regular water quality surveys conducted in San Francisco Bay by the U.S. Geological Survey (USGS).

Domoic acid, a neurotoxin that causes amnesic shellfish poisoning in humans, is produced by marine diatoms in the genus Pseudo-nitzschia.

Claudia Benitez - Nelson of the University of South Carolina in Columbia and colleagues are the first to look for domoic acid in alga particles and sediment up to 800 metres down, where they found the toxin at concentrations more than five times the US federal limit for shellfish sold as food (Nature Geoscience, DOI: 10.1038 / ngeo472).

Further sleuthing revealed Pseudo-nitzschia australis remains and domoic acid in the bay's anchovies, which feed on algae by filtering water through their gills.

The scientists also discovered Pseudo-nitzschia australis, domoic acid, and traces of anchovies in sea lion feces — damning evidence, they say, of a pathway of death from algae to anchovies to sea lions.

By May, Pseudo-nitzschia australis numbers had soared, sea lions were convulsing and dying, and water samples contained traces of domoic acid, the alga's deadly neurotoxin.

Lesions found in the brains of dead sea lions were typical of domoic acid poisoning.

Orange mammal symbols were detected with domoic acid, while those colored red also showed symptoms of poisoning.

In late May 2015, a sea lion was found convulsing on a Washington beach, and domoic acid was identified in its feces.

Toxic algae come in many forms, but off the West Coast the major health and economic threat comes from various Pseudo-nitzschia species which can, under certain conditions, produce domoic acid, which can cause gastrointestinal distress, seizures, memory loss and even death.