한국수산과학회지 (Korean Journal of Fisheries and Aquatic Sciences)
- 제19권5호
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- Pages.411-422
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- 1986
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- 0374-8111(pISSN)
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- 2287-8815(eISSN)
부산 동백점 연안에 서식하는 노래미 Agrammus agrammus의 먹이생물
Diets of the Rock Trout, Agrammus agrammus, in the Shore Area of Tongbaeksom, Pusan
- KIM Chong Kawn (Department of Marine Biology, National Fisheries University of Pusan) ;
- KANG Yong Joo (Department of Marine Biology, National Fisheries University of Pusan)
- 발행 : 1986.09.01
초록
부산해운대 동백섬 연안천해에 분포하는 노래미 개체군의 식성을 파악하기 위해 노래미의 위내용물을 분석하고 환경생물을 조사했다. 노래미의 주된 먹이 생물은 amphipoda 및 isopoda에 속하는 갑각류였다. 특히, Gammaridae는 모든 계절에서 어느 연령군의 노래미의 위내용물로부터 우점적으로 출현했다. Caprella sp.는 산란직전의
Diets of the rock trout, Agrammus agrammus, in the shore area of Tongbaeksom, Pusan over the period of July 1981 to June 1982 were studied. Specimens were sampled by angling. Stomach analysis showed that the rock trout fed mainly on epibenthic food in the littoral zone along the coast of Tongbaeksom. The food organisms of the enviornment were studied by means of underwater sampling around the angling area for this study. Although the food items of the fish changed slightly with season and age-group, main food items were Amphipoda (Gammaridae, Caprellidae) and Isopoda (Sphaeromidae, Idotheidae). This suggests that the diets of A. agrammus mainly comprised epibenthic food. Food diversity increased with age. The fish almost consummed on smaller food in size, but had selective predation according to food size, i. e. on larger food as age increases. These data provide additional support for the importance of the detritus-benthos-consummer type food chain.
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