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Summer Seaweed Flora and Community Structure of Uninhabited Islands in Goheung, Korea

Authors :
Hyun Il Yoo
Han Gil Choi
Ji Na Song
Seo Kyoung Park
Bo Yeon Kim
Jin Suk Heo
Source :
Korean Journal of Fisheries and Aquatic Sciences. 44:524-532
Publication Year :
2011
Publisher :
The Korean Society of Fisheries and Aquatic Science, 2011.

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 2wt/m , 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.Key words: Algal flora, Biomass, Community, Dominant species, Functional form

Details

ISSN :
03748111
Volume :
44
Database :
OpenAIRE
Journal :
Korean Journal of Fisheries and Aquatic Sciences
Accession number :
edsair.doi...........4abaffcb814e9560e33aa7c0c6a88287
Full Text :
https://doi.org/10.5657/kfas.2011.0524