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KMID : 0368419830260030119
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Journal of Plant Biology
1983 Volume.26 No. 3 p.119 ~ p.130
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Community Structure and Productivity of Phytobenthos in Juckdo(Eastern Coast of Korea)
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Abstract
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Algal vegetation in the subtidal zone between a small rock output and the Juckdo Island, eastern coast of Korea was investigated at several selected sites. The objectives of the survey were to describe the poorly known macroalgae community in this area and correlete the patterns of distribution as well as the change of zonation with the environmental conditons. The water movement, light intensity and the inclination of substrate are considered as the environmental parameters. The upper and mid subtidal zones in sheltered area with less steep rocky surface are dominated by large brown alga Sargassum confusum; in the exposed area are characterised by species of Costaria costata. In the lower subtidal zone, the difference of vegetation between the sheltered and the exposed areas is not recognized. At this depth the light intensity is an impertant ecological factor. Six narrow algal zones occur in the sheltered area, whereas two broad belts occur in the exposed area. The biomass value is 4 times greater in the sheltered area than in the exposed area.
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