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Algae > Volume 18(4); 2003 > Article
Algae 2003;18(4): 301-309. doi: https://doi.org/10.4490/ALGAE.2003.18.4.301
Community Dynamics of Benthic Marine Algae in the Intertidal and Subtidal Rocky Shore of Samyang, Jejudo Island
Jong Su Yoo
Research Institute of Marine Science and Technology, Korea Maritime University
Community structure and vertical distribution marine algae were inverstigated in the intertidal and subtidal rocky shore of Samyand, Jejudo Island. The total number of 62 algal species composed of 6 Cyanophyta, 6 Chlorophyta, 19 Phaeophyta, and 31 Rhodophyta were observed. The dominant species were melobesioidean algae, Sargassum thunbergii, Hizikia fusiformis, and Ulva pertusa in the intertidal zone and melobesioidean algae, Ulva pertusa, Corallina spp., and Undaria pinnatifida in the subtidal zone. The vertical algal distribution was represented by the melobesiodean algae in the whole rocky shore, Caulacanthus ustulatus in the upper intertidal zone, Sargassum thunbergii and Hizikia fusiformis in the middle and lower zone, Ulva pertusa in the lower zone and Ulva pertusa, Corallina spp., and Undaria pinnatifida in the subtidal zone. The compostion of dominant species and pattern of the vertical distribution of algae in the present study were significantly different from the previous reports. Especially, distribution of crustose coralline algae was significantly extended.
Key words: benthic marine algae, community structure, intertidal, Jejudo Island, subtidal, vertical distribution

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