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날쌔기(Cobia). Rachycentron canadum (Linnaeus, 1766) → Family 362

경골상강→조기강→농어목→날쌔기과→날쌔기(Cobia; Rachycentron canadum)
Superclass Osteichthyes→Class Actinopterygii→Order Perciformes→Family Rachycentridae→Cobia; Rachycentron canadum

Copyright by Kim In Young. 김인영 그림
Rachycentron_canadum_mypainting_700.jpg
날쌔기 기본 모습. Lateral view of Cobia(Rachycentron canadum). Ref. Live and dead specimen photos and drawings by others.


농어목 날쌔기과 Order Perciformes Family Rachycentridae(cobia)
날쌔기(Cobia)
Rachycentron canadum (Linnaeus, 1766). 200cm(TL)
D/spine6~9+1~3, soft ray26~33, A/spine2~3, soft ray22~28, P₁/18~22, P₂/spine1, soft ray5.

분포; 한국의 남해, 동태평양을 제외한 전세계 열대와 아열대 해역에 분포.
일반개요; 몸은 원통형이며 머리는 옆으로 넓고 윗면이 납작하다. 긴 등지느러미 앞쪽에 지느러미 막으로 연결되지 않고 독립된 매우 작은 그러나 강한 6~9개의 가시가 있으며 등지느러미는 1~3개의 가시와 26~33개의 연조로 이루어져 있다(참조: Nelson 2006). 성어의 꼬리지느러미는 안으로 패였고 상엽이 하엽보다 길다. 어린 것은 빨판상어들처럼 꼬리지느러미가 밖으로 둥글다. 몸은 3개의 흑갈색과 3개의 흰색 수평 띠가 서로 교차하며 성어는 배쪽 흑갈색 띠가 희미하다. 바위 많은 연안, 산호초 위, 모래•개펄, 자갈 바닥, 외양의 표류물체 또는 시설물 주변, 기수 등 원•근해의 다양한 환경에 나타난다. 소수가 무리를 지으며 물고기, 게, 오징어를 잡아먹는다. 좋은 식용어이지만 큰 무리를 짓지 않아서 소량 밖에 어획되지 않는다.


Order Perciformes(perch-likes), Family Rachycentridae(cobia)
Cobia
Korean. n. Nal-ssae-gi (날쌔기)
Rachycentron canadum (Linnaeus, 1766). 200cm(TL)
 
Distribution: Worldwide in tropical and subtropical waters, except the eastern Pacific.
General: Cylindrical body with broad and depressed head. 6~9 short strong free spines(not connected by a membrane) ahead of long dorsal fin(1~3 spines and 26~33 soft rays). Caudal fin lunate in adults, upper lobe longer than lower, juveniles with round caudal fin as in the cases of remoras. Back and sides dark brown with 3 whitish lateral bands(including the white belly), lowest dark band less distinct in adults. Occurs in a variety of habitats, over mud, sand and gravel bottoms, over coral reefs, off rocky shores, and offshore around drifting and stationary objects, occasionally in estuaries. Form small groups. Feed on fishes, crabs, and squids. Good food fish, but caught in small quantities due to its solitary behavior.

Rachycentron_canadum_Alex_crop600.jpg날쌔기 성어. Adult Cobia(Rachycentron canadum). Location/observed in Mozambique. Author/Alex Bairstow. (CC BY-NC)

Rachycentron_canadum_wu_600.jpg날쌔기 성어. Adult Cobia(Rachycentron canadum). Location/Manatee County, Florida, US. Author/wu_d_006. (CC BY-NC)

Rachycentron_canadum_Kevin_600.jpg
날쌔기 성어. Adult Cobia(Rachycentron canadum). Location/South East Queensland, Australia. Author/sercfisheries. (CC BY-NC)

Rachycentron_canadum_Ken_crop600.jpg날쌔기. Cobia(Rachycentron canadum). Location/Mid North Coast, New South Wales. Australia. Author/Ken Graham. (CC BY-NC)


Rachycentron_canadum_sercfisheries_600.jpg날쌔기 유어. Juvenile Cobia(Rachycentron canadum). Location/Somerset County, Maryland, US. Author/sercfisheries. (CC BY-NC)

Rachycentron_canadum_robertdadams_crop600.jpg날쌔기 유어. Juvenile Cobia(Rachycentron canadum). Location/Rockland County, New York, US. Author/robertdadams. (CC BY-NC)

Rachycentron_canadum_tivinjd_crop500.jpg text on preparation날쌔기 유어. Juvenile Cobia(Rachycentron canadum). Location/Harrison County, Mississippi, US. Author/tivinjd. (CC BY-NC)

Rachycentron_canadum_NOAA_crop600.jpg날쌔기. Cobia(Rachycentron canadum). Cobia on ice at Open Blue Sea Farms. Author/NOAA FishWatch.

text on preparation



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