Nursery and Main Culture Conditions for Mass Cultivation of the Brown Alga, Ecklonia cava Kjellman

Abstract

The mass cultivation of Ecklonia cava Kjellman was studied as a potential biomass source for the extract industry in Korea. Experiments were conducted to investigate the optimal conditions for artificial seed production and mass cultivation of this species. Maximum growth and young thalli development in the nursery culture area occurred at 2 m depth, whereas maximum growth of thalli in the main culture area occurred at 1 m depth. Production of E. cava was between 2.6 and 3.6 kg wet wt. m -1 after depth control and removal of fouling organism, etc. The relationship between optimal water depth for culture and underwater irradiance during the E. cava cultivation was calculated as: y = -0.718x + 8.042 (r 2 =0.976). The growth rates achieved in this trial indicate that E. cava cultures could produce and supply sufficient biomass. (Fig. 1A). 채묘틀은 4시간 동안 유주자액에 담가 유주자 착생을 유도하고 이후 깨끗한 여과해수를 넣은 수조로 옮겨 수조배양을 실시하였다 (Fig. 1B). 수조 배양은 유주자 채묘후 1주일간은 배양 해수를 환수시키지 않았으며, 이후 0.5 L min -1

Impact of Super Typhoon ‘Hinnamnor’ on Density of Kelp Forest and Associated Benthic Communities in Jeju Island, Republic of Korea

“…Regarding its critical ecological roles as a forest-forming kelp species, E. cava is a protected species in Korea, and harvesting is prohibited all year around to ensure its survival and conservation [9]. Thus, for commercial purposes, E. cava can only be collected when dislodged after natural disturbance or thallus detachment [17].…”

Study on Growth Characteristics of Sargassum fulvellum in the Integrated Multi-trophic Aquaculture (IMTA) System

“…A study on growth of Ecklonica cava showed thalli were newly generated in the winter, grew wider in the following spring and thicker in the summer (Haroun et al, 1989;Yokohama et al, 1987). According to Hwang et al (2010), after moderate level of bleaching in the summer, S. fulvellum grew once more in October with its branches showing a continual growth year-round. In our study, the species showed the same growth pattern as in the Hwang et al (2010).…”

“…According to Hwang et al (2010), after moderate level of bleaching in the summer, S. fulvellum grew once more in October with its branches showing a continual growth year-round. In our study, the species showed the same growth pattern as in the Hwang et al (2010).…”

Interactive Effects of Increased Temperature and pCO₂ Concentration on the Growth of a Brown Algae Ecklonia cava in the Sporophyte and Gametophyte Stages

“…과거에 감태는 다른 해 조류와 달리 직접 식용되지 않아서 소라, 전복 등 양식 산 업의 먹이자원으로 이용되어 왔으며, 수질정화, 자원조성 및 CO 2 저감에도 이용되고 있다 (Kang 2013). 또한 감태 는 항암, 항응집소 및 항트롬빈 다당류로 알려진 후코이단 (Heo et al 2003)과 노화방지나 만성 성인병 예방 효과가 있는 폴리페놀의 함량이 다른 갈조류에 비하여 높은 것으 로 알려져 (Ahn et al 2007), 기능성 건강식품과 의약품 산 업에서도 관심이 높아지고 있다 (Hwang et al 2010;Kang 2013). 하지만, 감태 군락은 점차 감소되고 있으며 (Hwang et al 2009), 한번 훼손된 지역이 안정된 군락으로 회복되 기 위해서는 약 3~4년의 긴 시간이 소요되는 것으로 알려 져 있다 (Wi et al 2008…”