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yellow jack
The yellow jack, ''Carangoides bartholomaei'' (also known as coolihoo), is a species of marine fish in the jack family, Carangidae. It is one of only two representatives of its genus present in the Atlantic Ocean, inhabiting waters off the east coast of the Americas from Massachusetts in the north to Brazil in the south, as well as a number of offshore islands. The yellow jack can be distinguished from closely related species the length of the jaw, as well as counts of the rays in the fins. It is a fairly large fish, growing to a recorded maximum length of 1 m, and a weight of at least 14 kg. Yellow jack inhabit reefs, moving either individually or in schools and are predatory fish which primarily take other small fish. Studies in the Caribbean suggest the species reaches sexual maturity between 23 and 32 cm, and spawns in offshore waters from February to October. Yellow jack are of minor economic importance, taken by both hook and net methods, and are considered to be fair table fish. They are often caught by boat anglers, although are overlooked for their larger relatives.
==Taxonomy and naming==
The yellow jack is classified within the genus ''Carangoides'', a group of fish commonly called jacks and trevallies. ''Carangoides'' falls into the jack and horse mackerel family Carangidae, itself part the order Perciformes, in the suborder Percoidei.
The species was first scientifically described by the famed French taxonomist Georges Cuvier in 1833, based on the holotype specimen collected from St. Bartholomew Island in the West Indies.
Cuvier named this new species ''Caranx bartholomaei'' after the island from which the holotype was taken. The genus in which the taxon should be placed has proved contentious, and continues to be today with a number of recent publications placing the species in ''Carangoides'', while others still classify it within ''Caranx''. This article follows the Fishbase and ITIS classification of ''Carangoides bartholomaei''. The species predominant common name, "yellow jack", comes from the colour the species turns as it gets older, with other common names including "coolihoo" and incorrectly, "green jack".
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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