Korean Journal of Ichthyology (한국어류학회지)

The Ichthyological Society of Korea (한국어류학회)
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First Record of the Fivestripe Wrasse, Thalassoma quinquevittatum (Perciformes: Labridae) Based on Postlarval Specimen from the Southern Coastal Waters of Jeju-do Island, Korea

제주도 남부해역에서 채집한 놀래기과(Labridae) 후기자어 Thalassoma quinquevittatum 한국 첫기록

  • Jae-Kyung Bae (Department of Marine Biology, Pukyong National University) ;
  • Hwan-Sung Ji (Fisheries Resources Research Center, National Institute of Fisheries Science) ;
  • Jin-Koo Kim (Department of Marine Biology, Pukyong National University)
  • 배재경 (부경대학교 해양생물학과) ;
  • 지환성 (국립수산과학원 수산자원연구센터) ;
  • 김진구 (부경대학교 해양생물학과)
  • Received : 2022.07.27
  • Accepted : 2022.11.07
  • Published : 2022.12.31
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Abstract

The single postlarval specimen (7.53 mm in standard length) of Thalassoma quinquevittatum (Lay & Bennett, 1839), belongs to the family Labridae, was collected by a bongo net from the southern coastal waters of Jeju-do Island, Korea in November 2020. T. quinquevittatum has a deeply curved dorsal contour before the dorsal fin, the oval eyes, and no melanophores throughout the body. While T. amblycephalum has a slightly curved dorsal contour before the center of the dorsal fin, the circular eyes, and few melanophores on the body. A molecular analysis based on 548 base pairs sequences in the mitochondrial DNA cytochrome c oxidase subunit I region shows that the specimen was closely matched to adult T. quinquevittatum (K2P distance=0.002-0.005). We report the first record of T. quinquevittatum in Korean waters, and suggest its new Korean name "Da-seot-jul-saek-dong-nol-rae-gi".

2020년 11월 한국 제주도 남부에서 봉고네트로 채집된 놀래기과 고생놀래기속 후기자어 1개체를 형태 분석한 결과, Thalassoma quinquevittatum로 확인되었다. 자치어 시기에 형태적으로 매우 유사한 색동놀래기 T. amblycephalum와 등쪽 경사, 눈의 모양, 흑색소포의 분포에서 구별된다. 미토콘드리아 DNA COI 염기서열 548 bp을 분석한 결과, T. quinquevittatum 성어와 0.2~0.5% 유전적 차이를 보였고, 같은 속의 T. amblycephalum, T. cupido, T. lunare, T. purpureum, T. lucasanum, T. lutescens와는 각각 12.3%, 13.7%, 13.2%, 12.1%, 13%, 11.2%의 유전적 차이를 보였다. 국내 처음 보고되는 본 종의 새로운 국명으로 "다섯줄색동놀래기"를 제안한다.

Keywords

Acknowledgement

이 논문은 2022년 국립수산과학원 연구사업 (2022030) 및 2022년 해양수산기술진흥원 (과제명: 관상어 전자도감 개발, 20200470)의 지원으로 수행된 연구입니다. 논문을 세심하게 검토해주신 심사위원께 감사드립니다.

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