한국어류학회지 (Korean Journal of Ichthyology)

  • 제35권4호
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  • Pages.354-360
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  • 2023
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  • 1225-8598(pISSN)
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  • 2288-3371(eISSN)
한국어류학회 (The Ichthyological Society of Korea)
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한국 서해에 출현하는 꼼치(Liparis tanakae)의 위내용물 조성

Diet Composition of Tanaka's snailfish, Liparis tanakae in the Yellow Sea, Korea

  • 진수연 (경상국립대학교 해양생명과학과/양식생명과학과/해양산업연구소/해양생물교육연구센터) ;
  • 강다연 (경상국립대학교 해양생명과학과/양식생명과학과/해양산업연구소/해양생물교육연구센터) ;
  • 성기창 (경상국립대학교 해양생명과학과/양식생명과학과/해양산업연구소/해양생물교육연구센터) ;
  • 김도균 (경상국립대학교 해양생명과학과/양식생명과학과/해양산업연구소/해양생물교육연구센터) ;
  • 김호승 (경상국립대학교 해양생명과학과/양식생명과학과/해양산업연구소/해양생물교육연구센터) ;
  • 김현지 (국립수산과학원 수산자원연구센터) ;
  • 이정훈 (국립수산과학원 수산자원연구센터) ;
  • 백근욱 (경상국립대학교 해양생명과학과/양식생명과학과/해양산업연구소/해양생물교육연구센터)
  • Suyeon Jin (Department of Marine Biology and Aquaculture Science/Department of Aquaculture Science/Institute of Marine Industry/Marine Bio-Education & Research Center, College of Marine Science, Gyeongsang National University) ;
  • Da Yeon Kang (Department of Marine Biology and Aquaculture Science/Department of Aquaculture Science/Institute of Marine Industry/Marine Bio-Education & Research Center, College of Marine Science, Gyeongsang National University) ;
  • Gi Chang Seong (Department of Marine Biology and Aquaculture Science/Department of Aquaculture Science/Institute of Marine Industry/Marine Bio-Education & Research Center, College of Marine Science, Gyeongsang National University) ;
  • Do-Gyun Kim (Department of Marine Biology and Aquaculture Science/Department of Aquaculture Science/Institute of Marine Industry/Marine Bio-Education & Research Center, College of Marine Science, Gyeongsang National University) ;
  • Ho Seung Kim (Department of Marine Biology and Aquaculture Science/Department of Aquaculture Science/Institute of Marine Industry/Marine Bio-Education & Research Center, College of Marine Science, Gyeongsang National University) ;
  • Hyeon Ji Kim (Fisheries Resources Research Center, National Institute of Fisheries Science) ;
  • Jeong Hoon Lee (Fisheries Resources Research Center, National Institute of Fisheries Science) ;
  • Gun Wook Baeck (Department of Marine Biology and Aquaculture Science/Department of Aquaculture Science/Institute of Marine Industry/Marine Bio-Education & Research Center, College of Marine Science, Gyeongsang National University)
  • 투고 : 2023.08.31
  • 심사 : 2023.11.06
  • 발행 : 2023.11.30
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초록

이번 연구에 사용된 꼼치는 2022년 4, 8, 10, 11월에 우리나라 서해에서 저인망으로 채집하였으며, 채집된 꼼치의 전장범위는 3.8~52.2 cm였다. 꼼치의 가장 중요한 먹이생물은 생이하목 새우류였으며, 그중 마루자주새우, 분홍갯가꼬마새우를 주로 섭식했으며, 영양단계는 3.63으로 나타났다. 또한, 꼼치는 생이하목 새우류 중 마루자주새우를 주로 섭식하는 섭식특화종이었다. 크기군별 먹이생물 조성 변화를 분석한 결과, 모든 크기군에서 생이하목 새우류가 가장 우점했으며, 성장함에 따라 마루자주새우의 비율은 감소하는 반면, 분홍갯가꼬마새우의 비율은 증가하는 경향이 관찰되었다. 개체당 평균먹이생물의 개체수는 유의한 차이를 보이지 않은 반면, 중량은 크기군이 증가함에 따라 유의하게 증가하는 경향이 관찰되었다. 계절별 먹이생물 조성 변화를 분석한 결과, 여름과 가을에 생이하목 새우류를 주로 섭식했으며, 생이하목 새우류 중에서 여름에는 마루자주새우, 가을에는 마루자주새우와 분홍갯가꼬마새우를 주로 섭식했다.

The diet composition of Tanaka's snailfish, Liparis tanakae were collected by bottom trawl net in the Yellow Sea of Korea during 2022 (April, August, October, and November). The size of the specimens ranged from 3.8 to 52.2 cm in total length. L. tanakae were primary consumed caridea shrimps (Crangon hakodatei, Eualus spathulirostris, etc.) and specialist feeder mainly consumed caridea shirmps (C. hakodatei). The L. tanakae's trophic level is 3.63. Caridea shrimps were the primary prey items for all size groups (<20 cm, 20~30 cm, 30~40 cm, ≥40 cm). The proportion of E. spathulirostris has increased as the body size of L. tanakae increased, whereas the proportion of C. hakodatei decreased gradually. As the body size of L. tanakae increased the mean weight of prey per stomach (mW/ST) tended to increase significantly (One-way ANOVA, P<0.05). The caridea shrimps were the primary prey items throught all seasons. In summer, the main prey items were the C. hakodatei, however, in autumn, the proportion of C. hakodatei decreased while the proportion of E. spathulirostris increased.

키워드

과제정보

이 논문은 2023년도 국립수산과학원 수산과학연구사업(R2023001)의 지원을 받아 수행된 연구입니다.

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