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http://dx.doi.org/10.13047/KJEE.2014.28.6.613

Marine Algal Flora and Ecological Role of Eisenia bicyclis in Dokdo, East Sea, Korea  

Park, Seo Kyoung (Institute of Eco and Environmental Incorporation)
Lee, Jung Rok (Faculty of Biological Science, Wonkwang University)
Heo, Jin Suk (Faculty of Biological Science, Wonkwang University)
An, Dae Sung (Institute of Eco and Environmental Incorporation)
Lee, Haeng Pil (Institute of Eco and Environmental Incorporation)
Choi, Han Gil (Faculty of Biological Science, Wonkwang University)
Publication Information
Korean Journal of Environment and Ecology / v.28, no.6, 2014 , pp. 613-626 More about this Journal
Abstract
Seaweeds were identified after qualitative sampling at 14 stations of Dokdo coasts from May to July 2013 and seaweeds and animals inhabiting 23 Eisenia bicyclis plants were examined to evaluate its ecological role. Biomass was calculated by using regression between stipe length and weight of E. bicyclis. A total of 128 species were identified, including 18 green, 35 brown, and 75 red algae. Coarsely branched form was dominant functional group occupying 47.66% and 91 species (71.09%) were in ESG I group, growing in stable environmental coast. Also, R/P, C/P, and (R+C)/P were 2.14, 0.51, and 2.66, respectively showing temperate and mixed flora. Biomass and density of E.bicyclis were $23.74kg\;m^{-2}$ and 64 fronds $m^{-2}$. Twelve seaweeds and 83 animal species (15 Annelida, 25 Mollusca, 34 Arthropoda, 3 Echinodermata, and 6 others) were observed from 23 holdfasts and Ericthonius pugnax was dominant taxon having 538 (43.11%) of 1,248 animal individuals. These results indicate that E.bicyclis is a keystone species showing very important ecological role. In conclusion, the number of seaweeds increased because of intensive research and dominance of coarsely branched form and ESG I group seaweeds, representing that environmental condition of Dokdo is still intact.
Keywords
FUNCTIONAL FORM GROUP; SEAWEEDS; EPIPHYTIC FAUNA;
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Times Cited By KSCI : 3  (Citation Analysis)
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