Ocean Science Journal

, 46:205 | Cite as

Abundance of epiphytic dinoflagellates from coastal waters off Jeju Island, Korea During Autumn 2009

  • Hyung Seop Kim
  • Wonho YihEmail author
  • Jong Hyeok Kim
  • Geumog Myung
  • Hae Jin Jeong
Open Access


The occurrence of harmful epiphytic dinoflagellates is of concern to scientists, the aquaculture industry, and government due to their toxicity not only to marine organisms but also to humans. There have been no studies on the abundance of the epiphytic dinoflagellates in Korean waters. We explored the presence of epiphytic dinoflagellates in the coastal waters off Jeju Island, southwestern Korea. Furthermore, we measured the abundance of epiphytic dinoflagellates on the thalli of 24 different macroalgae, collected from five different locations in October 2009. Five epiphytic dinoflagellate genera Amphidinium, Coolia, Gambierdiscus, Ostreopsis, and Prorocentrum were found. These five genera were observed on the thalli of the macroalgae Chordaria flagelliformis, Martensia sp., Padina arborescens, and Sargassum sp., while none were observed exceptionally on Codium fragile. The abundance of Ostreopsis spp. was highest on Derbesia sp. (8,660 cells/g wet weight), while that of Gambierdiscus spp. was highest on Martensia sp. (4,870 cells/g-ww). The maximum abundances of Amphidinium spp., Coolia spp., and Prorocentrum spp. were 410, 710, and 300 cells/g-ww, respectively. The maximum abundance of Coolia spp., Gambierdiscus spp., and Ostreopsis spp. obtained in the present study was lower than for other locations reported in literature. The results of the present study suggest that the presence and abundance of epiphytic dinoflagellates may be related to the macroalgal species of the coastal waters of Jeju Island.

Key words

Amphidinium Gambierdiscus HAB Ostreopsis Prorocentrum red tide 


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Copyright information

© Korea Ocean Research & Development Institute (KORDI) and the Korean Society of Oceanography (KSO) and Springer Netherlands 2011

Authors and Affiliations

  • Hyung Seop Kim
    • 1
  • Wonho Yih
    • 2
    Email author
  • Jong Hyeok Kim
    • 2
  • Geumog Myung
    • 3
  • Hae Jin Jeong
    • 4
  1. 1.Research Institute of Fisheries TechnologyKunsanKorea
  2. 2.Department of OceanographyKunsan National UniversityKunsanKorea
  3. 3.Western BranchKorea Fisheries Resources AgencyKunsanKorea
  4. 4.School of Earth and Environmental Sciences, College of Natural SciencesSeoul National UniversitySeoulKorea

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