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제주도 연안역 부유성 요각류의 출현과 주요종의 계절변화
손태준,오봉철,고유봉,고방연 濟州大學校海洋硏究所 1994 해양과환경연구소 연구논문집 Vol.18 No.-
Seasonal fluctuations of species composition and abundance of pelagic copepods on the coast of Cheju Island were examined. Samples were collected from the four surface waters(Udo, Gosan, Seogwi and Cheju) of Cheju Island during the period from July 1990 to March 1994. There was considerable seasonal variation in occurance of pelagic copepods, with high values from summer to fall and low ones from winter to spring. Mean copepodid individuals showed a peak in May 1991 and 1992. Numerical abundance of copepods was observed in May and November. Copepodid and other crustacean larvae gave the evidence of active production during the period of sampling. Seventy seven species of pelagic copepods were identified, of which Paracalanus indicus, Acartia omorii, A. steueri, Oncaea venusta, Oithona plumifera, Calanus sinicus, Corycaeus affinis were main constituents. Most of these copepods are well found in Kuroshio current. P. indicus showed three peaks(early spring, early summer and early winter) in adult individuals, C. sinicus, A. steueri and O. plumifera, two peaks in winter and summer, C. affinis two peaks in spring and winter, A. omorii showed only one peak in autumn in this study area.