Fisteria
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Fisteria
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Pfiesteria is a genus of heterotrophic dinoflagellates that has been associated with harmful algal blooms and fish kills. Pfiesteria complex organisms (PCOs) were claimed to be responsible for large fish kills in the 1980s and 1990s on the coast of North Carolina and in tributaries of the Chesapeake Bay.In reaction to the toxic outbreaks, six states along the US east coast have initiated a ...
In 1997, Pfiesteria piscicida was reportedly implicated in killing more than 30 000 fish and making ill more than 36 people in Maryland. Victims appeared with symptoms characterized by unique skin lesions, respiratory problems, and neurological complications primarily including short-term memory loss. The Pfiesteria toxin was a ligated copper ...
Pfiesteria is the name of a dinoflagellate. Pfiesteria is a microscopic organism that sometimes behaves like a plant and sometimes like an animal. Unlike other dinoflagellates that cause red and brown tides, Pfiesteria does not cause discoloration of the water. Pfiesteria has a complicated life cycle that includes a number of life stages.
About Pfiesteria BACKGROUND Pfiesteria piscicida (P. piscicida) is a microscopic alga that lives in estuaries—where freshwater streams or rivers mix with and salt water—along the Atlantic and Gulf coasts. Researchers at North Carolina State University first identified P. piscicida in 1988 in fish cultures. Since then, scientists have ...
But Pfiesteria is the only known algal toxin that apparently is absorbed through skin or lungs, causing systemic effects on human health, including memory loss and other neurological symptoms. Even so, "the evidence of its human health effects is scanty," notes a CDC report, perhaps due a lack of clinical studies.
Pfiesteria piscicida is a dinoflagellate species of the genus Pfiesteria that some researchers claim is responsible for many harmful algal blooms in the 1980s and 1990s on the coast of North Carolina and Maryland.North Carolinian media in the 1990s referred to the organism as the cell from hell.It is known to populate estuaries. Piscicida means "fish-killer".
Pfiesteria is a toxic dinoflagellate that has been linked to fish kills along coastal waters from Delaware to North Carolina. Samples taken from Suffolk County waterways found Pfiesteria to be widespread in our area, but the cold waters of Long Island aren't thought to be optimal for toxin production or bloom formation.
The toxic dinoflagellate, Pfiesteria piscicida, has been implicated as the primary causative agent of major fish kills and fish disease events (finfish and shellfish; 10 3 to 10 9 finfish) in North Carolina estuaries, coastal areas, and aquaculture operations. Pfiesteria and closely related toxic species ("Pfiesteria-like complex") have also been confirmed in fish kill/disease areas and ...
Feb 11, 2022 Fever. Chills. Muscle aches. Nausea. Diarrhea. Symptoms might begin a few days after you've eaten contaminated food, but it can take 30 days or more before the first signs and symptoms of infection begin. If the listeria infection spreads to your nervous system, signs and symptoms can include: Headache. Stiff neck.
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Pfiesteria is a genus of heterotrophic dinoflagellates that has been associated with harmful algal blooms and fish kills. Pfiesteria complex organisms were claimed to be responsible for large fish kills in the 1980s and 1990s on the coast of North Carolina and in tributaries of the Chesapeake Bay. Wikipedia More at Wikipedia
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Including results for pFiesteria Search only for "Fisteria" ?
Pfiesteria is a genus of heterotrophic dinoflagellates that has been associated with harmful algal blooms and fish kills. Pfiesteria complex organisms (PCOs) were claimed to be responsible for large fish kills in the 1980s and 1990s on the coast of North Carolina and in tributaries of the Chesapeake Bay.In reaction to the toxic outbreaks, six states along the US east coast have initiated a ...
In 1997, Pfiesteria piscicida was reportedly implicated in killing more than 30 000 fish and making ill more than 36 people in Maryland. Victims appeared with symptoms characterized by unique skin lesions, respiratory problems, and neurological complications primarily including short-term memory loss. The Pfiesteria toxin was a ligated copper ...
Pfiesteria is the name of a dinoflagellate. Pfiesteria is a microscopic organism that sometimes behaves like a plant and sometimes like an animal. Unlike other dinoflagellates that cause red and brown tides, Pfiesteria does not cause discoloration of the water. Pfiesteria has a complicated life cycle that includes a number of life stages.
About Pfiesteria BACKGROUND Pfiesteria piscicida (P. piscicida) is a microscopic alga that lives in estuaries—where freshwater streams or rivers mix with and salt water—along the Atlantic and Gulf coasts. Researchers at North Carolina State University first identified P. piscicida in 1988 in fish cultures. Since then, scientists have ...
But Pfiesteria is the only known algal toxin that apparently is absorbed through skin or lungs, causing systemic effects on human health, including memory loss and other neurological symptoms. Even so, "the evidence of its human health effects is scanty," notes a CDC report, perhaps due a lack of clinical studies.
Pfiesteria piscicida is a dinoflagellate species of the genus Pfiesteria that some researchers claim is responsible for many harmful algal blooms in the 1980s and 1990s on the coast of North Carolina and Maryland.North Carolinian media in the 1990s referred to the organism as the cell from hell.It is known to populate estuaries. Piscicida means "fish-killer".
Pfiesteria is a toxic dinoflagellate that has been linked to fish kills along coastal waters from Delaware to North Carolina. Samples taken from Suffolk County waterways found Pfiesteria to be widespread in our area, but the cold waters of Long Island aren't thought to be optimal for toxin production or bloom formation.
The toxic dinoflagellate, Pfiesteria piscicida, has been implicated as the primary causative agent of major fish kills and fish disease events (finfish and shellfish; 10 3 to 10 9 finfish) in North Carolina estuaries, coastal areas, and aquaculture operations. Pfiesteria and closely related toxic species ("Pfiesteria-like complex") have also been confirmed in fish kill/disease areas and ...
Feb 11, 2022 Fever. Chills. Muscle aches. Nausea. Diarrhea. Symptoms might begin a few days after you've eaten contaminated food, but it can take 30 days or more before the first signs and symptoms of infection begin. If the listeria infection spreads to your nervous system, signs and symptoms can include: Headache. Stiff neck.
Shop our fresh and sustainable seafood from the Pacific Ocean. We have a variety of crab, salmon, tuna, cod, and in-season seafood. Subscribe to our monthly boxes and get amazing seafood at great prices. Visit our restaurant at our beautiful location in Bodega Bay, CA and try our award-winning clam chowder.
Pfiesteria is a genus of heterotrophic dinoflagellates that has been associated with harmful algal blooms and fish kills. Pfiesteria complex organisms were claimed to be responsible for large fish kills in the 1980s and 1990s on the coast of North Carolina and in tributaries of the Chesapeake Bay. Wikipedia More at Wikipedia
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From Wikipedia, the free encyclopedia
Pfiesteria piscicida is a dinoflagellate species of the genus Pfiesteria that some researchers claim is responsible for many harmful algal blooms in the 1980s and 1990s on the coast of North Carolina and Maryland . North Carolinian media in the 1990s referred to the organism as the cell from hell . It is known to populate estuaries . [1]
Piscicida means "fish-killer".
Early research suggested a very complex life cycle of Pfiesteria piscicida with up to 24 different stages, spanning from cyst to several amoeboid forms with toxic zoospores . Transformations from one stage to another depend on environmental conditions such as the availability of food. [2] However these results have become controversial as additional research has found only a simple haplontic life cycle with no toxic amoeboid stages [3] and amoebae present on attacked fish may represent an unrelated species of protist . [4] [5]
Pfiesteria presumably kills fish via releasing a toxin into the water to paralyze its prey. This hypothesis has been questioned as no toxin could be isolated and no toxicity was observed in some experiments. However, toxicity appears to depend on the strains and assays used. [6] Polymerase chain reaction -analyses suggested that the organism lacks the DNA for polyketide synthesis, the type of toxins associated with most toxic dinoflagellates. [7] Researchers from the NOAA National Centers for Coastal Ocean Science, the National Institute of Standards and Technology , the Medical University of South Carolina, and the College of Charleston (S.C.) have formally isolated and characterized the toxin in the estuarine dinoflagellete Pfiesteria piscicida as a metal complex and free radical toxin and also have identified how the organism transforms from a non-toxic to toxic state. [8] [9] [10] [11]
Very little research on the human health effects of Pfiesteria toxins has been conducted. At a multi-state workshop at the Centers for Disease Control and Prevention (CDC) in Atlanta , U.S. , at the end of September 1997, attendees agreed on clinical symptoms that characterize a new illness associated with Pfiesteria exposure. These clinical features include:
With these criteria and environmental qualifiers (e.g., 22% of a 50-fish sample, all of the same species, have lesions caused by a toxin), it is likely that Pfiesteria -related surveillance data can better track potential illnesses.
Pfiesteria toxins have been blamed for illness in those who have come in close contact with waters where this organism is abundant. Since June 1997, the Maryland Department of Health and Hygiene has been collecting data from Maryland physicians through a statewide surveillance system on illnesses suspected of being caused by Pfiesteria toxin. As of late October 1997, illness was reported by 146 persons who had been exposed to diseased fish or to waters that were the site of suspected Pfiesteria activity. Many of these persons are watermen and commercial fishermen.
The strongest evidence of Pfiesteria -associated human illness so far comes from case studies of two research scientists who were both overcome in their North Carolina laboratory in 1993. They still complain of adverse effects on their cognitive abilities, particularly after exercising. Duke University Medical Center researchers conducted experiments on rats, which showed that the toxin appeared to slow learning but did not affect memory. [12]
Treatment with Colestyramine shortly after exposure has been shown to alleviate symptoms. [13]
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