Korean Journal of Ichthyology (한국어류학회지)

The Ichthyological Society of Korea (한국어류학회)
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Feeding Habits of the Pointhead Flounder (Cleisthenes pinetorum) in the West Sea in Korea

한국 서해에 출현하는 용가자미(Cleisthenes pinetorum)의 식성

  • Choi, Dong Hyuk (West Sea Fisheries Research Institute, National Institute of Fisheries Science (NIFS)) ;
  • Youn, Byoung Il (West Sea Fisheries Research Institute, National Institute of Fisheries Science (NIFS)) ;
  • Kim, Maeng Jin (West Sea Fisheries Research Institute, National Institute of Fisheries Science (NIFS)) ;
  • Lee, Seung Hwan (West Sea Fisheries Research Institute, National Institute of Fisheries Science (NIFS)) ;
  • Kwon, Dae Hyeon (West Sea Fisheries Research Institute, National Institute of Fisheries Science (NIFS)) ;
  • Han, Kyeong Ho (Chonnam National University, Department of Aqualife Science) ;
  • Lee, Seung Jong (Fisheries Resources Research Center, NIFS)
  • 최동혁 (국립수산과학원 서해연구소 자원환경과) ;
  • 윤병일 (국립수산과학원 서해연구소 자원환경과) ;
  • 김맹진 (국립수산과학원 서해연구소 자원환경과) ;
  • 이승환 (국립수산과학원 서해연구소 자원환경과) ;
  • 권대현 (국립수산과학원 서해연구소 자원환경과) ;
  • 한경호 (전남대학교 수산해양대학 양식생물학과) ;
  • 이승종 (국립수산과학원 수산자원연구센터)
  • Received : 2021.10.25
  • Accepted : 2021.12.02
  • Published : 2021.12.31
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Abstract

The feeding habits of the pointhead flounder, Cleisthenes pinetorum were studied in the West Sea in Korea. The samples were investigated using 360 specimens (21.7~48.1 cm in total length) collected by gill net of the coastal waters from January to December 2019. As a result, C. pinetorum consumed mainly Ophiuroidea and Pisces, but also ate small amounts of Macrura, Echinodermata, Amphipoda and Brachyura. The results of this study showed a difference with those of main feed habits of C. pinetorum caught in the coastal waters of Kori (Huh and Baeck, 2003). The proportion of fishes in prey items increased with size-related while that of Ophiuroidea decreased. As total length of C. pinetorum increased the mean number of preys per stomach (mN/ST) and weight of prey per stomach (mW/ST) tended to increase.

한국 서해에 출현하는 용가자미 (Cleisthenes pinetorum)의 섭식습성에 대한 연구를 위해 2019년 1월부터 12월까지 자망어선에서 어획된 360개체(전장 21.7~48.1 cm) 위내용물을 분석하였다. 용가자미의 주 먹이생물은 거미불가사리류와 어류로 나타났고, 이외에도 새우류, 난바다곤쟁이류, 단각류, 게류 등을 소량 섭식하였다. 이러한 연구의 결과는 고리연안에서 보고된 용가자미의 섭이 습성 결과와 차이를 보였다(Huh and Baeck, 2003). 용가자미가 성장함에 따라 거미불가사리류의 비율이 감소하고 어류의 비율이 증가하였고, 용가자미 전장이 증가하면서 개체수와 습중량은 증가하는 경향을 보였다.

Keywords

Acknowledgement

이 연구는 국립수산과학원 시험연구사업 "서해연안어업 및 환경생태조사(R2021033)"의 지원에 의해 수행되었습니다.

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