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ALGAE > Volume 23(4); 2008 > Article
ALGAE 2008;23(4): 295-300. doi: https://doi.org/10.4490/algae.2008.23.4.295
Temporal Variations of Seaweed Biomass in Korean Coasts: Munseom, Jeju Island
Young Wook Ko1, Gun Hee Sung1, Chang Ho Yi1, Hyun Hee Kim1, Dong Mun Choi1, Yong Deok Ko2, Wook Jae Lee3, Hyoung-Bum Koh4, Jung Hyun Oak5, Ik Kyo Chung6 and Jeong Ha Kim1,*

1Department of Biological Science, Sungkyunkwan University, Suwon 440-746, Korea
2Ko’s Dive System, 1107, Gunip-Dong, Jeju 690-050, Korea
3Jeju Biodiversity Research Institute, HiDI, Jeju 690-121, Korea
4Jeju Special Self-Governing Province Fisheries Resources Research Institute, Jeju 699-915, Korea
5Marine Research Institute, Pusan National University, Busan 609-735, Korea
6Division of Earth Environmental System, Pusan National University, Busan 609-735, Korea
*Corresponding Author  Email: jhkimbio@skku.ac.kr
ABSTRACT
Seaweed biomass was estimated using a nondestructive method in the rocky subtidal zones in Munseom, Jeju Island, Korea from July 2006 to April 2008. Seasonal samplings were done at the depth of 1, 5, 10 m using 50 x 50 cm quadrat. Mean biomass was comprised of 2,784 g wet wt m?2 and the biomass values varied seasonally from 1,176 g wet wt m?2 to 4,217 g wet wt m?2 with the highest point in April. Biomass reached maximum at 5 m depth in spring, but was shifted to 10 m depth in summer. Common seaweeds appeared year round in Munseom were Codium minus, Ecklonia cava, Sargassum spp., articulated corallines and Plocamium telfairiae. Among them, E. cava showed the highest biomass (average of 1,288 g wet wt m?2), comprising 48% of total biomass. Only 12 species’ biomass covered 98% of total value, which indicated the contribution of few common species to algal community. Seaweed biomass in Munseom represented one of the highest values in coastal regions in Korea.
Key words: biomass, Munseom, nondestructive method, regression, seaweed, subtidal zone


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