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pp.50-60
Marine algal flora and community structure were investigated seasonally at six sites in the vicinity of Mokpo harbor, on the west-southern coast of Korea from March to December 2004. In total, 88 species including 13 green algae, 20 brown algae, and 55 red algae were collected and identified. Among these species, 21 species were found throughout the year. Gelidium divaricatum and Caulacanthus ustulatus were distributed mostly in the upper intertidal zone. By contrast, Ulva pertusa and Sargassum thunbergii occurred predominantly in the middle intertidal zone. Sargassum fusiforme, S. thunbergii and Chondria crassicaulis were most common in the lower intertidal zone. The annual mean biomass in wet weight was 234.7 g m−2. The maximum biomass was recorded in spring (317.5 g m−2) and minimum was recorded in winter (156.9 g m−2). The R/P, C/P, and (R+C)/P values reflecting the flora characteristics were 2.75, 0.65 and 3.40, respectively. Two groups were produced by cluster analysis, one including group close to inland sites 1, 2, 6 and the other including group in offshore sites 3, 4, 5.
