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한국 남해안에서 세디멘트 트랩으로 포획한 식물플랑크톤 및 Cochlodinium polydrikoides 관찰
강윤자(Y.J. Kang),문창호(C.H. Moon),조현진(H.J. Cho) 한국해양환경·에너지학회 2005 한국해양환경·에너지학회 학술대회논문집 Vol.2005 No.11
We set a sediment trap at the Donghwa-Ri dock in the southern coast of Korea for 12 days, from 8th to 20th August 2005, observed phytoplankton community, and was to reveal a life cycle of toxic dinoflagellate Cochlodinium polykrikoides. Phytoplankton in the trap samples appeared total of 37 genera (67 species) and the dominant species was a diatom, Skeletonema costatum. C polykrikoides were distributed very low concentrations (4~8 cells/㎖) in the trap although red tides occur in the southern coastal waters of Korea during this experiment. Futhermore, the cells supposed as C polykrikoides cysts were not detected. C polykrikoides was established in culture using micropipette and maintained at 20℃ under a 12:12 light-dark cycle of cool white fluorescent light at 6000 Lux. The cells were active and had clear red bodies at first. After two days the cells were destroyed, appearing hyaline membranes obviously.