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Glaucus atlanticus is the blue sea slug shown here out of water on a beach, and thus collapsed; however, touching the animal directly with your skin can result in a painful sting, with symptoms similar to those caused by the Portuguese man o' war The slug in the water
Tiny but mighty, the 1-inch blue dragon feeds on venomous prey including the Portuguese man-o'war and other jellyfish-like species and stores the venom with its fingerlike appendages, according to ...
Glaucus is a genus of small blue pelagic sea slugs.They are aeolid nudibranchs, [1] ranging in size from 20 to 40 mm (0.79 to 1.57 in). [2] They feed on colonial cnidarians such as Portuguese man o' wars, blue buttons, and purple sails.
Spring breakers flocking to TX beaches this month could stumble upon a sight many have never seen — a bright blue and silver sea slug known as the blue dragon.
When large numbers of fish, like shoaling forage fish, are in confined situations such as shallow bays, the excretions from the fish encourage this dinoflagellate, which is not normally toxic, to produce free-swimming zoospores. If the fish remain in the area, continuing to provide nourishment, then the zoospores start secreting a neurotoxin ...
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Pteraeolidia ianthina, one of the most common aeolids found, is often called a "blue dragon" by Eastern Australian divers because of its close resemblance to a Chinese dragon. [8] It is one of the most common aeolid nudibranchs found in Eastern Australia and can inflict a painful sting to humans.
The fish most often implicated include barracuda, grouper, moray eel, amberjack, sea bass, and sturgeon. [2] Diagnosis is based on a person's symptoms together with having recently eaten fish. [1] If a number of those who eat the same fish develop symptoms the diagnosis becomes more likely. [1]