한국 남해에 출현하는 만새기(Coryphaena hippurus)의 식성
분야
수해양 > 수산생물학
저자
정재묵 ( Jae Mook Jeong ) , 최정화 ( Junghwa Choi ) , 임양재 ( Yang-jae Im ) , 김정년 ( Jung Nyun Kim )
발행기관
한국수산과학회(구 한국수산학회)
간행물정보
한국수산과학회지 2017년, 제50권 제5호, 541~546페이지(총6페이지)
파일형식
05908377.pdf [무료 PDF 뷰어 다운로드]
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    영문초록
    Feeding habits of dolphinfish Coryphaena hippurus, were analyzed. Fish samples were collected by using a purse seine, fishing and set net in the southern sea of Korea from January to December 2015. The size of C. hippurus ranged from 23.8 to 127.4 cm in fork length. The species with the highest percent index of relative importance (%IRI; the most important prey taxa) in the diets of C. hippurus were teleosts and cephalopod, including Engraulis japonicus, Thamnaconus modestus and Trachurus japonicus , Loligo edulis was the most frequently consumed cephalopods. Coryphaena hippurus also ate small amounts of amphipods and carid shrimp. The dietary compositions of C. hippurus was not significantly different among size classes or seasons (ANOSIM, P> 0.05). As body size of C. hippurus increased the mean number of prey per stomach (mN/ST) tended to decrease, but the opposite trend was evident for mean weight of prey per stomach (mW/ST). The mN/ST and mW/ST also significantly varied with season (one-way ANOVA, P<0.05).
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