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Poisonous Fish
Poisonous fish are fish that are poisonous to eat. They contain toxins which are not destroyed by the digestive systems of animals that eat the fish.Poisonous vs. Venomous fish: What’s the difference?
Reef Biosearch. Retrieved 17 July 2009.
Venomous fish also contain toxins, but do not necessarily cause poisoning if they are eaten, since the digestive system often destroys their venom.


Examples

*Species of puffer fish (the family Tetraodontidae) are the most poisonous in the world, and the second most poisonous vertebrate after the Golden Poison Frog, golden dart frog. The active substance, tetrodotoxin, found in the internal organs and sometimes also the skin, paralyzes the diaphragm muscles of human victims, who can die from s ...
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Harmful Algal Blooms
A harmful algal bloom (HAB), or excessive algae growth, sometimes called a red tide in marine environments, is an algal bloom that causes negative impacts to other organisms by production of natural algae-produced toxins, water deoxygenation, mechanical damage to other organisms, or by other means. HABs are sometimes defined as only those algal blooms that produce toxins, and sometimes as any algal bloom that can result in severely lower oxygen levels in natural waters, killing organisms in marine or fresh waters. Blooms can last from a few days to many months. After the bloom dies, the microbes that decompose the dead algae use up more of the oxygen, generating a " dead zone" which can cause fish die-offs. When these zones cover a large area for an extended period of time, neither fish nor plants are able to survive. It is sometimes unclear what causes specific HABs as their occurrence in some locations appears to be entirely natural, while in others they appear to be a res ...
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Scombroid Food Poisoning
Scombroid food poisoning, also known as simply scombroid, is a foodborne illness that typically results from eating spoiled fish. Symptoms may include flushed skin, sweating, headache, itchiness, blurred vision, abdominal cramps and diarrhea. Onset of symptoms is typically 10 to 60 minutes after eating and can last for up to two days. Rarely, breathing problems, difficulty swallowing, redness of the mouth, or an irregular heartbeat may occur. Scombroid occurs from eating fish high in histamine due to inappropriate storage or processing. Fish commonly implicated include tuna, mackerel, mahi mahi, escolar, sardine, anchovy, bonito, herring, bluefish, amberjack, and marlin. These fish naturally have high levels of histidine, which is converted to histamine when bacterial growth occurs during improper storage. Subsequent cooking, smoking, or freezing does not eliminate the histamine. Diagnosis is typically based on the symptoms and may be supported by a normal blood tryptase ...
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Salmon Poisoning Disease
''Neorickettsia helminthoeca'' is a bacterium in the '' Neorickettsia'' genus that causes salmon poisoning disease. Salmon poisoning disease Salmon poisoning disease (SPD) is a fatal disease of dogs and other canids caused by a rickettsial bacterium, ''Neorickettsia helminthoeca''. It results from eating raw salmon, trout, or salamander and is common in the Pacific Northwest. These fish and amphibians are infected with the larvae of a fluke, '' Nanophyetus salmincola'' through an intermediate host, the snail '' Juga plicifera'' (Oxytrema is an obsolete genus). The larvae attach to the intestine of the dog and the rickettsial bacteria are released, causing severe gastrointestinal disease and systemic infection. '' Neorickettsia elokominica'', carried by the same fluke, causes a similar disease known as Elokomin fluke fever (EFF) in canids, bears, raccoons, and ferrets. Symptoms Symptoms of SPD begin about one week after eating the salmon and include vomiting, diarrhea, ...
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Ichthyoallyeinotoxism
Ichthyoallyeinotoxism, or hallucinogenic fish inebriation, comes from eating certain species of fish found in several parts of the tropics, the effects of which are reputed to be similar in some aspects to LSD. Experiences may include vivid auditory and visual hallucinations. This has given rise to the collective common name "dream fish" for ichthyoallyeinotoxic fish. The species most commonly claimed to be capable of producing this kind of toxicity include several species from the genus '' Kyphosus'', including ''Kyphosus fuscus'', ''K. cinerascens'', and ''K. vaigiensis''. It is unclear whether the toxins are produced by the fish themselves or by marine algae in their diet, but a dietary origin may be more likely. '' Sarpa salpa'', a species of bream, can induce LSD-like hallucinations if it is eaten. These widely distributed coastal fish are called "the fish that make dreams" in Arabic. In 2006, two men who ate fish, apparently the '' Sarpa salpa'' caught in the Mediterranean, ...
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Hallucinogenic Fish
Several species of fish are claimed to produce hallucinogenic effects when consumed, a condition known as '' ichthyoallyeinotoxism''. For example, '' Sarpa salpa'', a species of sea bream referred to as the "dream-fish", is commonly claimed to be hallucinogenic. These widely distributed coastal fish are normally found in the Mediterranean and around the Iberian Peninsula, west to the Azores and along the west and south coasts of Africa. Occasionally they are found in British or more northerly waters. They may induce hallucinogenic effects similar to LSD (lysergic acid diethylamide) if eaten. However, based on the reports of exposure they are more likely to resemble hallucinogenic effects of deliriants than the effects of serotonergic psychedelics such as LSD. In 2006, two men who apparently ate the fish experienced hallucinations lasting for several days (an effect common with some naturally occurring deliriants). The likelihood of hallucinations depends on the season. ''Sarp ...
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Haff Disease
Haff may refer to: People * Carroll Barse Haff (1892–1947), American track and field athlete who competed in the 1912 Summer Olympics *Bergljot Hobæk Haff Bergljot Hobæk Haff (1 May 1925 – 12 February 2016) was a Norwegian educator and novelist. Biography Haff was born in Botne Municipality (now part of Holmestrand Municipality) in Vestfold county, Norway. Her parents were Lars Hobæk (1883–1 ... (1925–2016), Norwegian novel writer Places * Haff, estuarine lagoon along the Southern Baltic coast * Am Stettiner Haff, Amt in the district of Uecker-Randow, in Mecklenburg-Vorpommern, Germany Other * Battle of Frisches Haff * Haff disease * Holland Animation Film Festival {{disambiguation ...
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Ciguatera
Ciguatera fish poisoning (CFP), also known as ciguatera, is a foodborne illness caused by eating tropical reef fish contaminated with ciguatoxins. Such individual fish are said to be ciguatoxic. Symptoms may include diarrhea, vomiting, numbness, itchiness, dysesthesia, sensitivity to hot and cold, dizziness, and weakness with lethargy. The onset of symptoms varies with the amount of toxin absorbed. If a large quantity of toxins are consumed symptoms may appear within half an hour. If a low amount of toxins are consumed symptoms may take a few days to appear. Diarrhea may last up to four days. Symptoms may last a few weeks to a few months. Heart problems such as slow heart rate and low blood pressure may occur. The specific toxins involved are the ciguatoxins and maitotoxin. They are originally made by a small marine organism, '' Gambierdiscus toxicus'', that grows on and around coral reefs in tropical and subtropical waters. These are eaten by herbivorous fish which in turn ...
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Aquatic Toxicology
Aquatic toxicology is the study of the effects of manufactured chemicals and other anthropogenic and natural materials and activities on aquatic organisms at various levels of organization, from subcellular through individual organisms to communities and ecosystems. Aquatic toxicology is a multidisciplinary field which integrates toxicology, aquatic ecology and aquatic chemistry. This field of study includes freshwater, marine water and sediment environments. Common tests include standardized acute and chronic toxicity tests lasting 24–96 hours (acute test) to 7 days or more (chronic tests). These tests measure endpoints such as survival, growth, reproduction, that are measured at each concentration in a gradient, along with a control test. Typically using selected organisms with ecologically relevant sensitivity to toxicants and a well-established literature background. These organisms can be easily acquired or cultured in lab and are easy to handle. History While basic re ...
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Ciguatera Poisoning
Ciguatera fish poisoning (CFP), also known as ciguatera, is a foodborne illness caused by eating tropical reef fish contaminated with ciguatoxins. Such individual fish are said to be ciguatoxic. Symptoms may include diarrhea, vomiting, numbness, itchiness, dysesthesia, sensitivity to hot and cold, dizziness, and weakness with lethargy. The onset of symptoms varies with the amount of toxin absorbed. If a large quantity of toxins are consumed symptoms may appear within half an hour. If a low amount of toxins are consumed symptoms may take a few days to appear. Diarrhea may last up to four days. Symptoms may last a few weeks to a few months. Heart problems such as slow heart rate and low blood pressure may occur. The specific toxins involved are the ciguatoxins and maitotoxin. They are originally made by a small marine organism, ''Gambierdiscus toxicus'', that grows on and around coral reefs in tropical and subtropical waters. These are eaten by herbivorous fish which in turn are e ...
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PhysOrg
Phys.org is an online science, research and technology news aggregator which re-publishes press releases and stories from news agencies (a business model known as churnalism). In 2012, PhysOrg.com was changed to Phys.org. , Phys.org was posting an average of 98 items per day. It is part of the Science X network of websites, headquartered on the Isle of Man. See also * EurekAlert! * Science Daily ''ScienceDaily'' is an American website launched in 1995 that aggregates press releases and publishes lightly edited press releases (a practice called churnalism) about science, similar to Phys.org and EurekAlert!. History The site was f ... References External links * British news websites Technology websites British technology news websites News aggregators British science websites Internet properties established in 2004 {{news-website-stub ...
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Hawaii
Hawaii ( ; ) is an island U.S. state, state of the United States, in the Pacific Ocean about southwest of the U.S. mainland. One of the two Non-contiguous United States, non-contiguous U.S. states (along with Alaska), it is the only state not on the North American mainland, the only state that is an archipelago, and the only state in the tropics. Hawaii consists of 137 volcanic islands that comprise almost the entire Hawaiian Islands, Hawaiian archipelago (the exception, which is outside the state, is Midway Atoll). Spanning , the state is Physical geography, physiographically and Ethnology, ethnologically part of the Polynesian subregion of Oceania. Hawaii's ocean coastline is consequently the List of U.S. states and territories by coastline, fourth-longest in the U.S., at about . The eight main islands, from northwest to southeast, are Niihau, Niihau, Kauai, Kauai, Oahu, Oahu, Molokai, Molokai, Lanai, Lānai, Kahoʻolawe, Kahoolawe, Maui, and Hawaii (island), Hawaii, a ...
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