Marynel G. dela Riarte Twilitte Ae Q. Medalle Gianne Gilbert P. Nismal (April 2015)
Seaweeds are important components in marine ecosystem and an important commodity in the Philippines, which export it in either taw or processed form. The carrageenan from seaweeds is used as gelling agent in medicines, cosmetics, and food. Seaweed farming and culture can be done in different sites depending on the type of seaweed that will be cultured. The study aims to determine the Specific Growth Rate and Survival Rate of Kappaphycus alvarezii and Kappaphyus strianum in Suclaran, San Lorenzo, Guimaras. The seaweeds were weighed approximately 150-200 grams for initial data and then tied to the line. Each line is composed of 20 individuals each. There are three lines of K. striatan and a line of K. alvarezii. After 16 days of culture, three randomly chosen seaweeds were then harvested and weighed. The number of surviving individuals was also checked. The method repeated after days 28, 42, 56, 70, 91. It was then used to calculate the SGR and the Survival Rate. The mean of SGRs of K. striatum after 16, 28, 42, 56, 70, and 91 days were 0.69508%, 0.75303%, 0.12873%, -0.319%, and -0.15595%, respectively while K. alvarezii grew 1.33579%, 0.68215%, -0.9419%, -0.9742%, -1.38637%, -1.4065% respectively. The average survival rate for K. striatum after day 16, 28, 56, 70 and 91 were 90%, 85%, 68.33%, 50%, 45%, and 33.33%, respectively while for the K. alvarezii were 100%, 95%, 85%, 70%, 70%, 30% after days 16, 28, 42, 56, 70 and 91 respectively.