Comparison of the cultivation performance between Korean (Sugwawon No. 301) and Chinese strains (Huangguan No. 1) of kelp Saccharina japonica in an aquaculture farm in Korea

다국어 초록 (Multilingual Abstract)

Saccharina japonica was introduced to both Korea and China from Hokkaido, Japan, and it has become an economically important species in both nations. After a long period of cultivation, several varieties of S. japonica have been developed in Korea and China. In this study, we conducted aquacultural research on the persistence of thalli from two kelp cultivars, one from China (Huangguan No. 1) and one from Korea (Sugwawon No. 301), between December 2015 and November 2016 in Haenam, Korea. The maximum length was 247.8 ± 13.0 and 227.5 ± 42.0 cm, respectively, which were significantly longer in Sugwawon No. 301 than in Huangguan No. 1. The maximum width was 29.9 ± 5.4 and 23.2 ± 1.9 cm, respectively, which were significantly wider in Huangguan No. 1 than in Sugwawon No. 301. The mean biomass obtained from the culture ropes was for Sugwawon No. 301 was 3.5 ± 0.3 kg wet wt m-1 and for while Huangguan No. 1 was 3.1 ± 1.0 kg wet wt m-1 of culture rope. After August, the persistence of the thalli of Sugwawon No. 301 was two months longer than that of Huangguan No. 1. We found that the Sugwawon No. 301 performed as well as the Huangguan No. 1 in Korean waters possibly due to increased flexibility as a result of the different cell arrangements of the two cultivars. Overall, the use of the Sugwawon No. 301 cultivar rather than the Huangguan No. 1 cultivar of S. japonica appears the best alternative to help to ensure a stable year round algal feed supply for the Korean abalone industry

참고문헌 (Reference)

1 손맹현, "전복 치패 산업의 지역별·규모별 경영성과 비교분석" 한국수산경영학회 46 (46): 1-13, 2015

2 김형근, "동해안 토속종 개다시마(Kjellmaniella crassifolia)와 이식종 다시마(Laminaria japonica)의 실내배양 연구" 한국양식학회 18 (18): 299-304, 2005

3 Lobban, C. S., "The physiological ecology of seaweeds" Cambridge University Press 242-, 1985

4 Hwang, E. K., "The mass cultivation of Ecklonia stolonifera Okamura as a summer feed for the abalone industry in Korea" 21 : 585-590, 2009

5 Dring, M. J., "The biology of marine plants" Edward Arnold Publishers 199-, 1982

6 Gerard, V. A., "Temperature ecotypes near the southern boundary of the kelp Laminaria saccharina" 97 : 575-580, 1988

7 Jang, J. W., "Studies on Laminaria cultivation. Report of the National Fisheries Research and Development Agency. Vol. 5" National Institute of Fisheries Science 63-74, 1970

8 Hwang, E. K., "Strain selection and initiation timing influence the cultivation period of Saccharina japonica and their impact on the abalone feed industry in Korea" 29 : 2297-2305, 2017

9 Ministry of Oceans and Fisheries, "Statistical data of the Ministry of Oceans and Fisheries"

10 김장균, "Seaweed aquaculture: cultivation technologies, challenges and its ecosystem services" 한국조류학회I 32 (32): 1-13, 2017

11 Wu, C. Y., "Seaweed Resources of the World" Japan International Cooperation Agency 34-46, 1998

12 Sohn, C. H., "Seaweed Resources of the World" Japan International Cooperation Agency 15-33, 1998

13 Park, C. S., "Seasonality of epiphytic development of the hydroid Obelia geniculata on cultivated Saccharina japonica (Laminariaceae, Phaeophyta) in Korea" 24 : 433-439, 2012

14 Kang, J. W., "On the geographical distribution of marine algae in Korea" 7 : 1-125, 1966

15 tom Dieck, I., "North Pacific and North Atlantic digitate Laminaria species (Phaeophyta): hybridization experiments and temperature responses" 31 : 147-163, 1992

16 Korean Statistical Information Service, "Korean statistical information service"

17 Parker, R. E., "Introductory statistics for biology" Edward Arnold 122-, 1979

18 Zhao, X. B., "Intraspecific crossing of Saccharina japonica using distantly related unialgal gametophytes benefits kelp farming by improving blade quality and productivity at Shanggou Bay, China" 28 : 449-455, 2016

19 Robinson, N., "Genetic improvement of macroalgae: status to date and needs for the future" 25 : 703-716, 2013

20 Liu, F., "Genetic diversity and structure within and between wild and cultivated Saccharina japonica (Laminariales, Phaeophyta) revealed by SSR markers" 358-359 : 139-145, 2012

21 박현정, "Fermented Saccharina japonica (Phaeophyta) improves neuritogenic activity and TMT-induced cognitive deficits in rats" 한국조류학회I 31 (31): 73-84, 2016

22 Hwang, E. K., "Development and cultivation of $F_2$ hybrid between Undariopsis peterseniana and Undaria pinnatifida for abalone feed and commercial mariculture in Korea" 26 : 747-752, 2014

23 Luning, K., "Critical levels of light and temperature regulating the gametogenesis of three Laminaria species (Phaeophyceae)" 16 : 1-15, 1980

24 Liu, F., "Breeding, economic traits evaluation, and commercial cultivation of a new Saccharina variety Huangguan No.1" 22 : 1665-1675, 2014

25 Zhang, Q. -S., "Breeding of an elite Laminaria variety 90-1 through inter-specific gametophyte crossing" 19 : 303-311, 2007