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Algae > Volume 23(4); 2008 > Article
Algae 2008;23(4): 301-310. doi: https://doi.org/10.4490/algae.2008.23.4.301
Species Composition and Biomass of Intertidal Seaweeds in Chuja Island
Myung Sook Kim1*, Miryang Kim2, Mi Hee Chung3, Jeong Ha Kim4 and Ik Kyo Chung5

1Research Institute of Basic Sciences, Pusan National University, Busan 609-735, Korea
2Department of Biology, Cheju National University, Jeju 690-756, Korea
3The Institute of Environmental Studies, Pusan National University, Busan 609-735, Korea
4Department of Biology, Sungkyunkwan University, Suwon 440-746, Korea
5Division of Earth Environmental System, Pusan National University, Busan 609-735, Korea
*Corresponding Author  Email: myungskim@hanmail.net
The marine benthic algal flora and biomass of Chuja Island, southern coast of Korea, was investigated. The collections of intertidal marine algae were made at two sites, Yecho of Hachujado and Hupo of Sangchujado, from October 2006 to July 2007. A total of 162 species, including 15 green, 47 brown and 100 red algae, were identified in this study. The occurrence of species according to season was abundant during spring to summer and less in autumn. The vertical distribution of intertidal zone in Chujado was characterized by Gloiopeltis spp., Myelophycus simplex, Ishige okamurae, Chondrus ocellatus, Grateloupia elliptica, Hizikia fusiformis and Sargassum spp. The average biomass of macroalgae was measured as 400 g wet wt m?2. The dominant species based on the biomass were Sargassum yezoense, S. coreanum and Hizikia fusiformis. ESG II (ecological state group) as an opportunistic species, including sheet form, filamentous form, and coarsely branched form, occurred 85.8% in the intertidal seaweeds. These results provide a baseline for future monitoring studies in the Chuja Island.
Key words: biomass, Chuja Island, intertidal community, macroalgal flora, seasonal changes

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