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Bluespotted trevally
The bluespotted trevally, ''Caranx bucculentus'' (also known as the wide-mouthed trevally), is a species of moderately large marine fish in the jack family Carangidae. The bluespotted trevally is distributed through the tropical east Indian and west Pacific Oceans, ranging from Taiwan in the north to Australia in the south. It is an inshore species, found in sandy, muddy and seagrass environments, often in large bays. The bluespotted trevally is distinguished by dark blue spots on its upper body, as well as a number of more detailed anatomical features. It is a benthopelagic predator, taking a variety of crustaceans including crabs and prawns as a juvenile, before shifting to a more fish-dominated diet as an adult. It is one of the most common predators in the Gulf of Carpentaria of northern Australia, and is considered the most important predator of commercially important prawn species. Sexual maturity is reached at 110 mm in length and one year of age, with spawning occurring year round with a peak in spring. Growth is estimated to be 82.2 mm per year for both sexes, reaching a maximum known length of 66 cm. Bluespotted trevally are commonly taken as bycatch in prawn fisheries, however are of little commercial value and often discarded. They are occasionally taken by anglers on lures and baits, but are considered mediocre table fare.
==Taxonomy and naming==
The bluespotted trevally is classified within the genus ''Caranx'', one of a number of groups known as the jacks or trevallies. ''Caranx'' itself is part of the larger jack and horse mackerel family Carangidae, a group of percoid fishes in the order Perciformes.
The species was first scientifically described by the Australian zoologists Haynes Gibbs Alleyne and Sir William John Macleay based on a specimen collected off Cape Grenville, Queensland, which was later designated to be the holotype. They named the species ''Caranx bucculentus'', with the specific epithet meaning 'with full cheeks' in Latin, referring to the species' wide mouth gape. In the original volume of ''Proceedings of the Linnean Society of New South Wales'' in which the species was described, the specific name is spelled as ''bucculantus'' in the legend, but is considered to be a typographical error and ignored. The species placement in ''Caranx'' has never been challenged and no attempts have been made to independently rename the species, making it one of the few members of ''Caranx'' to have no synonyms. The commonly used name of 'bluespotted trevally' is in reference to the fishes' body markings, with 'wide-mouthed trevally' also infrequently used.〔 〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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