Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Summer Seaweed Flora and Community Structure of Uninhabited Islands in Goheung, Korea

한국 고흥군 무인도서 하계 해조상 및 해조류 군집구조

  • Song, Ji-Na (Faculty of Biological Science and Institute for Basic Science, Wonkwang University) ;
  • Park, Seo-Kyoung (Faculty of Biological Science and Institute for Basic Science, Wonkwang University) ;
  • Heo, Jin-Suk (Faculty of Biological Science and Institute for Basic Science, Wonkwang University) ;
  • Kim, Bo-Yeon (Faculty of Biological Science and Institute for Basic Science, Wonkwang University) ;
  • Yoo, Hyun-Il (East Sea Fisheries Research Institute, NFRDI) ;
  • Choi, Han-Gil (Faculty of Biological Science and Institute for Basic Science, Wonkwang University)
  • 송지나 (원광대학교 생명과학부/기초자연과학연구소) ;
  • 박서경 (원광대학교 생명과학부/기초자연과학연구소) ;
  • 허진석 (원광대학교 생명과학부/기초자연과학연구소) ;
  • 김보연 (원광대학교 생명과학부/기초자연과학연구소) ;
  • 유현일 (국립수산과학원 동해수산연구소) ;
  • 최한길 (원광대학교 생명과학부/기초자연과학연구소)
  • Received : 2011.07.15
  • Accepted : 2011.10.05
  • Published : 2011.10.31
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Abstract

The intertidal benthic macroalgal floras of 19 uninhabited islands were investigated in the Goheung area, South Sea, Korea, in June 2008. Seaweed community structures on the rocky shores of four (Naemaemuldo, Ceoldo, Araedombaeseom, and Jinjioedo) of the 19 islands were also examined. Eighty macroalgal species were identified, including 13 green, 19 brown, and 48 red algae. The maximum number of species was found at Naemaemuldo, with 35 species, and the minimum was at Aredombaeseom, with 21 species. Seaweed biomass ranged from 21.39-76.22 g dry wt/$m^2$, with a maximum at Naemaemuldo, and minimum at Jinjioedo. Sargassum thunbergii was a representative species, distributed widely in the intertidal zone of the four islands. Subdominant seaweeds were Corallina pilulifera and Ulva pertusa at Naemaemuldo and Jinjioedo, respectively. Also, Ishige okamurae was dominant at Ceoldo and Araedombaeseom. Six functional seaweed forms were found at each study site, except for Araedombaeseom, which had four functional groups. On the rocky shores of the four sites, a coarsely-branched form was the most dominant functional group ranging from 44.44-61.90% in species number and 72.42-91. 09% in biomass. In conclusion, among the four study sites, the shore of Naemaemuldo Island had the best ecological status, with the highest number of species, and greatest biomass (mainly brown and red algae) and functional form diversity of seaweeds. Furthermore, on the rocky shore of Naemaemuldo, coarsely branched- and joint calcareous-form seaweeds, which grow in clean and undisturbed environmental conditions, were the representative functional forms.

Keywords

References

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