한국어류학회지 (Korean Journal of Ichthyology)

  • 제20권1호
  • /
  • Pages.45-53
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  • 2008
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  • 1225-8598(pISSN)
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  • 2288-3371(eISSN)
한국어류학회 (The Ichthyological Society of Korea)
권호 표지

동대만 잘피밭에 서식하는 돌팍망둑(Pseudoblennius percoides)의 식성

Feeding Habits of Pseudoblennius percoides (Pisces; Cottidae) in an Eelgrass (Zostera marina) Bed of Dongdae Bay

  • Huh, Sung-Hoi (Department of Oceanography, Pukyong National University) ;
  • Kwak, Seok Nam (Marine Eco-Technology Institute Co., Ltd.) ;
  • Kim, Ha Won (Department of Oceanography, Pukyong National University)
  • 투고 : 2008.02.12
  • 심사 : 2008.03.19
  • 발행 : 2008.03.31
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초록

2005년 1월부터 2005년 12월까지 동대만의 잘피밭에서 채집된 돌팍망둑의 식성을 조사하였다. 돌팍망둑의 주요 먹이는 어류 및 새우류였으며, 그 외, 곤쟁이류, 단각류 (옆새우류 및 카프렐라류), 요각류, 두족류, 갯지렁이류 및 게류등이 소량 섭식되었다. 돌팍망둑은 초기에는 요각류와 단각류를 많이 섭식하였으나, 성장함에 따라 어류와 새우류의 섭식율이 점차 증가하였다. 돌팍망둑은 계절에 관계없이 새우류 및 어류를 주로 섭식하였다. 체장별 및 계절별 dietary breadth는 전체적으로 낮게 나타났다.

Feeding habits of Pseudoblennius percoides collected from the eelgrass bed in Dongdae Bay from January to December 2005 were studied. P. percoides was a carnivore which mainly consumed fishes and caridean shrimps. Its diets included small quantities of mysids,amphipods (gammarid amphipods and caprellid amphipods), copepods, cephalopods, polychaetes,and crabs. P. percoides undergoes significant size-related changes; smaller fish (<3.0 cm SL) prey mainly copepods, gammarid amphipods, and mysids while the proportion of caridean shrimps and fishes increases with fish size. Fishes and caridean shrimps were major prey organisms for all seasons. Dietary breadth of P. percoides was lower with fish size and seasons.

키워드

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