The Effectivity of Plantation Depth on Seaweed Sargassum sp. Growth Using Longline Method

• Main Authors: Arini Fadhla Wahyuningtyas, ,-, Prayogo, ,-, Annur Ahadi Abdillah, ,-, Muhamad Nur Ghoyatul Amin, ,-, Moch. Amin Alamsjah, ,-
• Format: Article PeerReviewed
• Language: English; English; English
• Published: IOP Conference Series 2021
• Subjects: SH Aquaculture. Fisheries. Angling; SH20.3-191 Aquaculture
• Online Access: https://repository.unair.ac.id/122114/1/C.30.pdf; https://repository.unair.ac.id/122114/2/C.30.pdf; https://repository.unair.ac.id/122114/3/C.30.pdf; https://repository.unair.ac.id/122114/; https://iopscience.iop.org/article/10.1088/1755-1315/416/1/012021/pdf
• Institution: Universitas Airlangga

Due to many benefits of seaweed Sargassum sp. makes no longer possible to harvest directly from the habitat, because it may cause disruption of equilibrium in marine ecosystems.One profitable method is longline method. This research objective is to determine the effect of different plantation depth on the growth of seaweed Sargassum sp. with longline cultivation method. This research use four treatments with variation of plantation depths: 25, 50, 75 and 100 cm with 24 seaweed samples and repetition as much as six times per week for 4 weeks, total of 96 samples. The main parameter of this research is the growth of seaweed Sargassum sp. The supporting parameters are water quality parameters such as mineral content, temperature, DO, pH and salinity. The data was treated with ANOVA and continued by Duncan's test. The results showed that variation of plantation depth gave a highly significant influence (P <0.01) on the growth of seaweed Sargassum sp. with longline method. Treatment with 25 cm plantation depth had the best growth. In the fourth week, there was a significant growth resulted final weight 659.03% from its initial with specific growth rate 6.73%/day or nearly 5 times the growth depth of 100 cm