Hyun Il Yoo1, Soo Hong Kim1, Mi Sook Hwang1 and Eun Kyoung Hwang1
1Fisheries Seed and Breeding Research Institute, National Institute of Fisheries Science, Haenam 59002, Republic of Korea
To confirm the regional cultivation potential of Kjellmaniella crassifolia, a cold-water seaweed, we conducted aquaculture trials in Gangneung, eastern coast, where the kelp had grown naturally in the past, and Seosan and Jindo, southwestern coast, where seaweed aquaculture infrastructure were established. In this results, maximum length growth of thalli observed at Gangneung and Seosan in July as 127.6±6.1 cm and 123.3±32.5 cm, respectively. But maximum length of thalli in Jindo reached 76.0±7.9 cm in June, as shorter than in other regions. Sori fomation of the thalli observed at October only in Gangneung and Jindo. Thalli in Seosan lost due to the rapid erosion after July. Biennial thalli of the kelp obtained only in Jindo, and the growth in the second year (184.6±15.9 cm, maximum 242 cm) was greater than the growth in the first year (76.0±7.9 cm). 10% of thalli in the second year formed sori in July when 3 month early than the first year thalli. Therefore, early seed production and cultivation period elongation could be possible with the second year thalli of this species. In this study, we revealed that Jindo, where cold water mass exist, could be a suitable aquaculture place than any other regions even it was not their original habitat of this species.