A Preliminary Study on the Cultivation of Brown Seaweed Sargassum cristaefolium Using Fixed-off Bottom and Raft Methods

Authors : Nour Aley T YANGSON, Jerson I EDUBOS, Albaris B TAHİLUDDİN, Concepcion C TORİNG, Maria Liza B TORİNGFARQUERABAO

Pages : 17-29

View : 52 | Download : 13

Publication Date : 2022-06-28

Article Type : Research Paper

Abstract :Sargassum is a great source of alginate, a phycocolloid with vast uses in nutraceutical and pharmaceutical areas. Hence, the cultivation techniques of this species need special attention and are worth investigating. In this study, a preliminary study on the cultivation of Sargassum cristaefolium was carried out in coastal water of Pasiagan, Bongao, Tawi-Tawi, southern Philippines, using fixedoff bottom and raft methods with two types of seedlings insert ignore into journalissuearticles values(T1 = with holdfast and T2 = vegetative cutting);. Results revealed that the specific growth rate insert ignore into journalissuearticles values(SGR); of T1 insert ignore into journalissuearticles values(-1.51±0.6% day-1 ); and T2 insert ignore into journalissuearticles values(- 2.03±0.23% day-1 ); in the fixed-off bottom method did not significantly differ insert ignore into journalissuearticles values(p>0.05); after 45 days of culture. In raft method, SGR of T1 insert ignore into journalissuearticles values(1.5±0.12% day-1 ); and T2 insert ignore into journalissuearticles values(1.12±0.40% day-1 ); did not significantly vary insert ignore into journalissuearticles values(p>0.05); after 45 days. The survival rate of T1 insert ignore into journalissuearticles values(43.33±6.67%); was greatly higher insert ignore into journalissuearticles values(p>0.05); than T2 insert ignore into journalissuearticles values(13.33±3.33%); after day 45 cultured in the fixed-off bottom method. However, the survival rate of T1 insert ignore into journalissuearticles values(30.01±15.27%); and T2 insert ignore into journalissuearticles values(16.68±12.01%); did not differ significantly in the raft method. This study suggests that both seedling types can be used in raft method for Sargassum cultivation. This study would serve as preliminary information on the cultivation of Sargassum in Tawi-Tawi, southern Philippines.
Keywords : Fixed off bottom method, Raft method, Sargassum cristaefolium, Specific growth rate, Survival rate

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