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Algae > Volume 23(4); 2008 > Article
Algae 2008;23(4): 327-334. doi: https://doi.org/10.4490/algae.2008.23.4.327
Temporal Variations of Seaweed Biomass in Korean Coasts: Daejin, Gangwondo
Jae Deok Shin1, Jung Kwan Ahn1, Young Hwan Kim1*, Sung Bok Lee2, Jeong Ha Kim3 and Ik Kyo Chung4

1Department of Biology, Chungbuk National University, Cheongju 361-763, Korea
2Division of Marine Resource Development, Kangnung National University, Gangneung 210-702, Korea
3Department of Biological Science, Sungkyunkwan University, Suwon 440-746, Korea
4Department of Marine Science, Pusan National University, Busan 609-735, Korea
*Corresponding Author  Email: kimyh@cbnu.ac.kr
Seaweed biomass was estimated using a nondestructive sampling method in the rocky intertidal and subtidal zone in Daejin on the mid-east coast of Korea from August 2006 to April 2008. Seasonal sampling were done at the depth of 0, 1, 5, 10 m using 50 x 50 cm quadrat. A total of 95 species, including 11 chlorophytes, 26 phaeophytes, 57 rhodophytes and one sea grass were identified. Mean biomass was comprised of 1,292 g wet wt m?2 and the biomass values varied seasonally from 904 g to 1,945 g. Dominant species in biomass were Sargassum spp. (S. horneri, S. yezoense), Corallina pilulifera, Phyllospadix japonica, Symphyocladia latiuscula, Hizikia fusiformis, Codium arabicum and Chondrus ocellatus at Daejin. The vertical distribution of algae were characterized by Corallina pilulifera, Symphyocladia latiuscula, Sargassum spp. (S. confusum, S. yezoense), Hizikia fusiformis and Grateloupia elliptica at intertidal zone, Sargassum spp. (S. fulvellum, S. horneri, S. yezoense), Phyllospadix japonica, Codium arabicum, Undaria pinnatifida and Corallina pilulifera at 1 m depth, Sargassum spp. (S. horneri, S. micracanthum, S. yezoense), Phyllospadix japonica, Grateloupia elliptica, Gelidium amansii and Codium arabicum at 5 m depth and Phyllospadix japonica, Codium arabicum, Sargassum spp. (S. horneri, S. micracanthum, S. yezoense) and Undaria pinnatifida at 10 m depth.
Key words: biomass, Daejin, nondestructive method, seaweed

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