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Mackerel scad
The mackerel scad, ''Decapterus macarellus'', is a species of fish of the family, Carangidae. While mackerel scad can be considered gamefish, they are usually used as bait.〔(【引用サイトリンク】title=Fishbase.org entry on Mackerel scad )〕
==Description==
The largest mackerel scad recorded was 46 cm long.〔Jiménez Prado, P. & P. Béarez, 2004. Peces Marinos del Ecuador continental. Tomo 2: Guía de Especies / Marine fishes of continental Ecuador. Volume 2: Species Guide. SIMBIOE/NAZCA/IFEA〕 Their elongated bodies look somewhat circular when viewed head on.〔 They are distinguishable by a small, detached fin, located between the dorsal and caudal fins.〔(【引用サイトリンク】title=GMA.org entry on Mackerel scad )〕 Mackerel scad have 9 spines and 31-36 rays on their dorsal fins, while there are seven spines and 27-30 rays on their anal fins.〔
The mackerel scad's fins are black metallic to blue-green and its belly is white.〔 The edge of the operculum has a small, black spot,〔Smith-Vaniz, W.F., 1986. Carangidae. p. 638-661. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin.〕 with no spots on the lateral line.〔Randall, J.E. 1996 Caribbean reef fishes. Third edition - revised and enlarged. T.F.H. Publications, Inc. Ltd., Hong Kong. 3rd ed. 368 p.〕 Mackerel scad's caudal fins have been described as reddish 〔 to yellow-green.〔
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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