Aquaculture & Fisheries

Biography

Biography: Wahidatul Husna Zuldin

Abstract

Little is known on the performance of seaweed cultivated in land-based facilities. The present study was conducted to determine the performance of Kappaphycussp.cultivated in customized raceway culture system. Two red seaweed species (K. alvarezii variety Brown Tambalang, BT and K. striatum variety Green Flower, GF) were selected and cultivated using suspended method of seaweed cultivation. Three 40-days trials were conducted in September until December 2014. The raceway tank was equipped with continuous high water flow with the inlet flow-rate of 625 mLs-1 and outlet flow-rate of 383 mLs-1, and optimum water parameters comprised of salinity, temperature, dissolved oxygen (DO) level, pH and light intensity ranged from 29.90 ppt to 34.65 ppt, 〖27.51〗^o C to 〖34.94〗^o C, 5.17 to 6.51, 7.69 to 8.64 and 5993 lux to 6004 lux, respectively. Based on the findings, red seaweed grew in the customized raceway tank with the average daily growth rate of 2.14±0.17 %〖 day〗^(-1) for K. striatum var. GF and 2.67±0.37 %〖 day〗^(-1)for K. alvarezii var. BT. No fertilizers or enrichments were added during the cultivation period. In conclusion, raceway tank can be successfully used in cultivating Kappaphycus sp. These findings are significant to provide a baseline data and facilitate the land-based seaweed farming in the future.