This study aimed to determine the profit obtained by seaweed farmers if they changed the seaweed species from Eucheuma spinosum into Kappaphycus alvarezii. The study was conducted in Kaledupa Sub-District, Wakatobi District. The study population was all seaweed farmers totaling 60 people, consisting of 12 seaweed farmers of Kappaphycus alvarezii and 48 seaweed farmers of Eucheuma spinosum. The determination of the sample used census method. The types and sources of research data were primary and secondary data. Research data collection techniques were direct interview and literature studies. Research variables included variable costs, fixed costs, total costs, prices, production, revenue, and income. The analysis of the data used was partial budget analysis. The results showed that the profits obtained by seaweed farmers in Kaledupa Sub-District, Wakatobi District in changing the seaweed species from Eucheuma spinosum into Kappaphycus alvarezii amounted to IDR 2,185,498.3 per one production process.
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