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Diet composition of grass puffer, Takifugu niphobles in the eelgrass bed of Jangpyeong-ri, Tongyeong

통영 장평리 잘피밭에 출현하는 복섬(Takifugu niphobles)의 위내용물 조성

  • CHOI, Hee Chan (Department of Seafood & Aquaculture Science/Institute of Marine Industry/Marine Bio-Education & Research Center, College of Marine Science, Gyeongsang National University) ;
  • PARK, Jong Hyeok (Department of Seafood & Aquaculture Science/Institute of Marine Industry/Marine Bio-Education & Research Center, College of Marine Science, Gyeongsang National University) ;
  • NAM, Ki Mun (Pukyong Marine Life Research Institute) ;
  • BAECK, Gun Wook (Department of Seafood & Aquaculture Science/Institute of Marine Industry/Marine Bio-Education & Research Center, College of Marine Science, Gyeongsang National University)
  • 최희찬 (경상대학교 해양식품생명의학과, 해양산업연구소, 해양생물교육연구센터) ;
  • 박종혁 (경상대학교 해양식품생명의학과, 해양산업연구소, 해양생물교육연구센터) ;
  • 남기문 (부경해양생물연구소) ;
  • 백근욱 (경상대학교 해양식품생명의학과, 해양산업연구소, 해양생물교육연구센터)
  • Received : 2017.12.14
  • Accepted : 2018.03.19
  • Published : 2018.05.31

Abstract

The diet composition of Takifugu niphobles was studied with 587 specimens collected in the eelgrass bed of Jangpyeong-ri, Tongyeong, Korea, using a seine net, monthly from May 2016 to April 2017. The standard length (SL) of the specimens ranged from 0.7 to 9.0 cm. The stomach contents analysis indicated that T. niphobles consumed mainly amphipods (%IRI: 91.0 %). In addition, T. niphobles fed on small quantities of copepods, polychaetes, insects, bivalves and crabs. T. niphobles consumed mainly amphipods over all size class. Smaller individuals (less than 4 cm SL) fed mainly on amphipods and copepods. The proportion of copepods decreased, as body size increased, whereas the consumption of polychaetes increased gradually. The seasonal variation in the diet composition of T. niphobles was significant. Amphipods were most common prey in all seasons. Copepods decreased from summer to spring gradually whereas the consumption of polychaetes increased in autumn.

Keywords

Diet composition;Takifugu niphobles;Tongyeong;Eelgrass bed

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