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Paralytic shellfish poisoning (PSP) is one of the four recognized syndromes of shellfish poisoning, which share some common features and are primarily associated with bivalve mollusks (such as mussels, clams, oysters and scallops).
Shellfish allergy is among the most common food allergies."Shellfish" is a colloquial and fisheries term for aquatic invertebrates used as food, including various species of molluscs such as clams, mussels, oysters and scallops, crustaceans such as shrimp, lobsters and crabs, and cephalopods such as squid and octopus.
Mollusc shells have been widely used in art, whether carved directly, sometimes as cameos, or depicted in paintings. In popular culture, the snail is known for its stereotypical slowness, while the octopus and giant squid have featured in literature since classical times as monsters of the deep.
The estimate of 85,000 mollusks includes 24,000 described species of terrestrial gastropods. [9] Different estimates for aquatic gastropods (based on different sources) give about 30,000 species of marine gastropods, and about 5,000 species of freshwater and brackish gastropods. Many deep-sea species remain to be discovered, as only 0.0001% of ...
The egg has a tough spiny coat, and usually hatches to release a free-swimming trochophore larva, typical of many other mollusc groups. In a few cases, the trochophore remains within the egg (and is then called lecithotrophic – deriving nutrition from yolk), which hatches to produce a miniature adult.
Amnesic shellfish poisoning (ASP) is an illness caused by consumption of shellfish that contain the marine biotoxin called domoic acid. [1] In mammals, including humans, domoic acid acts as a neurotoxin, causing permanent short-term memory loss, brain damage, and death in severe cases.
Brevetoxin A, a group of neurotoxins isolated from the marine dinoflagellate Karenia brevis (formerly Gymnodinium breve). Basic schematic of sodium channel function. Brevetoxins bind to the voltage-gated sodium channel and induce a channel-mediated sodium ion influx. This results in neuroexcitation, membrane depolarization, and spontaneous ...
Chrysomallon squamiferum, commonly known as the scaly-foot gastropod, scaly-foot snail, sea pangolin, or volcano snail [3] [4] is a species of deep-sea hydrothermal-vent snail, a marine gastropod mollusc in the family Peltospiridae. [2]