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Humboldt squid : ウィキペディア英語版 | Humboldt squid
The Humboldt squid (''Dosidicus gigas''), also known as jumbo squid, jumbo flying squid, ''pota'' or ''diablo rojo'', is a large, predatory squid living in the waters of the Humboldt Current in the eastern Pacific Ocean. ''Dosidicus gigas'' is the only species of the genus ''Dosidicus'' of the subfamily Ommastrephinae, family Ommastrephidae. Humboldt squid are among the largest of squids, reaching a mantle length of . They have a reputation for aggression towards humans, though this behavior may possibly only manifest during feeding times. Like other members of the subfamily Ommastrephinae, they possess bioluminescent photophores and are capable of quickly changing body coloration (metachrosis). They notably rapidly flash red and white while hunting, earning them the name ''diablo rojo'' (Spanish for 'red devil') among fishermen. These chromatophores (which belong to more than one set and are of different sizes) may rapidly cycle through colours other than red and white, flashing too quickly for the human eye to see the transitions. They can live for up to two years. They are most commonly found at depths of , from Tierra del Fuego to California. This species is spreading north into the waters of Oregon, Washington, British Columbia, and Alaska. They are fished commercially, predominantly in Mexico and Peru. ==Description== Humboldt squid may grow to in mantle length (ML)〔Norman, M.D. 2000. ''Cephalopods: A World Guide''. ConchBooks.〕 and weigh up to .〔 Generally, the mantle (or body) constitutes about 40% of the animal's mass, the fins (or wings) about 12%, the arms and tentacles about 14%, the outer skin about 3%, the head (including eyes and beak) about 5%, with the balance (26%) made up of the inner organs.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Humboldt squid」の詳細全文を読む
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