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http://dx.doi.org/10.15433/ksmb.2022.14.2.102

Marine Algal Flora and Community Structure in Beakryoung-do, Western Coast of Korea  

Yong Yi, Kim (Department of Marine Biology, Kunsan National University)
Ju Hee, Kim (Department of Ecology and Conservation, Marine Biodiversity Institute of Korea)
Young Sik, Kim (Department of Marine Biology, Kunsan National University)
Publication Information
Journal of Marine Bioscience and Biotechnology / v.14, no.2, 2022 , pp. 102-111 More about this Journal
Abstract
Beakryoung-do is located in the north along the western coast of South Korea. Owing to its geographical limitations, not many studies have been conducted on marine algae in this region. This study aims to investigate the marine algal flora and the community structure in the intertidal and subtidal zones of Nampo-ri, Beakryoung-myeon, Ongin-gun, Incheon regions of South Korea. The study was conducted from August 2015 to June 2016 during all seasons. A total of 95 algal species, including 7 green algae, 12 brown algae, and 76 red algae were collected and identified; 52 algal species were found in the intertidal zone and 83 in the subtidal zone. The vertical distribution of algae from upper to lower intertidal zone was Neorhodomela aculeata - Caulacanthus okamurae, Gelidiophycus freshwateri - Neorhodomela aculeata, Caulacanthus okamurae - Sargassum thunbergii, Caulacanthus okamurae. Findings indicated that Sargassum thunbergii and Neorhodomela aculeata were the biomass-dominant species in the intertidal zone and Corallina officinalis and Undaria pinnatifida were biomass-dominant in the subtidal zone. Average values of marine algae biomass in the intertidal and subtidal zones were 252.6 g wet weight m-2 and 291.9 g wet weight m-2, respectively. Further, 38 new species were found in Beakryoung-do, with 25 of them specifically found in the subtidal zone. More studies on marine algal flora in the subtidal zone are needed to understand the changes in marine flora along the western coast.
Keywords
Algal flora; Beakryoung-do; Community structure;
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