한국어류학회지 (Korean Journal of Ichthyology)

  • 제26권4호
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  • Pages.349-354
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  • 2014
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  • 1225-8598(pISSN)
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  • 2288-3371(eISSN)
한국어류학회 (The Ichthyological Society of Korea)
권호 표지

필리핀 일로일로 연안해역에 출현하는 몽치다래(Auxis rochei)의 위내용물 조성

Diet Composition of Bullet Mackerel, Auxis rochei (Risso, 1810) in the Coastal Waters of Iloilo, Philippines

  • 백근욱 (경상대학교 해양생명과학과.해양산업연구소) ;
  • ;
  • ;
  • 김현지 (경상대학교 해양생명과학과.해양산업연구소) ;
  • 정재묵 (경상대학교 해양생명과학과.해양산업연구소)
  • Baeck, Gun Wook (Department of Marine Biology & Aquaculture, Institute of Marine Industry, College of Marine Science, Gyeongsang National University) ;
  • Quinitio, Gerald F. (Institute of Marine Fisheries and Oceanology College of Fisheries and Ocean Sciences University of the Philippines Visayas) ;
  • Vergara, Christopher J. (Institute of Marine Fisheries and Oceanology College of Fisheries and Ocean Sciences University of the Philippines Visayas) ;
  • Kim, Hyeon Ji (Department of Marine Biology & Aquaculture, Institute of Marine Industry, College of Marine Science, Gyeongsang National University) ;
  • Jeong, Jae Mook (Department of Marine Biology & Aquaculture, Institute of Marine Industry, College of Marine Science, Gyeongsang National University)
  • 투고 : 2014.10.30
  • 심사 : 2014.12.20
  • 발행 : 2014.12.31
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초록

필리핀 일로일로 주변해역에 출현하는 몽치다래(Auxis rochei)의 위내용물 조성을 연구하기 위하여 2013년 12월에서 2014년 5월까지 매월 채집하였으며 채집된 몽치다래의 총 개체수는 200개체였다. 이들의 가랑이체장(FL)은 11.1~31.2 cm의 범위를 보였다. 위내용물을 분석한 결과 몽치다래는 어류(fishes)를 가장 선호하는 epipelagic feeder로 나타났다. 어류 다음으로 중요한 먹이생물은 새우류(shirmps), 요각류(copepods), 게유생 (crab larvae), 단각류 (amphipods), 두족류 (cephalopods)로 나타났으며, 갯가재류 (stomatopods), 이매패류 (bivalves), 패충류(ostracods) 등도 섭식하였지만 그 양은 많지 않았다. 몽치다래의 섭식패턴에 대한 도해적방법의 결과는 몽치다래가 좁은 섭식폭을 가지며, 어류를 주로 섭식하는 specialized feeder임을 보였다. 모든 크기군에서 어류를 주로 섭식하였으며, 크기가 증가함에 따라 어류의 섭식비율이 증가하는 경향을 보였다.

The diet composition of bullet mackerel, Auxis rochei was studied using 200 specimens collected from December 2013 to May 2014 in the coastal waters of Iloilo, Philippines. The size of A. rochei ranged from 11.1 to 31.2 cm in fork length (FL). A. rochei was epipelagic feeder that consumed mainly fishes. In addition, A. rochei consumed shrimps, copepods, crab larvae, amphipods and cephalopods. The diet also included small quantities of stomatopods, bivalves, and ostracods. Also, analysis of the prey-specific abundance against the frequency of occurrence shows that A. rochei have a narrow food niche, and are specialized feeder with fish as their dominant prey. Although fishes were the primary in food consumed by all size class. The fishes gradually increased with body size.

키워드

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