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<p>The present study was attempted to elucidates and bring out the potential economic contribution of commercial seaweed cultivation at PAN—India level. <i>Kappaphycus alvarezii</i> was considered the targeted species, while cultivation using two commonly employed methods viz. raft, and tube-net was projected. This is in aligned with the Union Government of India’s feedstock production target of 1.12 million tonnes. The study would help to depict how different coastal states and union territories shall perform on economic proposition when the proposed production targets are achieved. Four scenarios were evaluated, considering a 40% subsidy on investment costs and the inclusion or exclusion of manpower costs. The results of economic analysis showed that only the combination of a 40% subsidy and exclusion of manpower costs yielded a positive net present value (NPV). Among all the Indian costal states, Tamil Nadu recorded the highest NPV, with USD 37.90 million for the raft method and USD 27.75 million for the tube-net method. This was followed by Gujarat and Andhra Pradesh states with NPVs of USD 25.26 million and USD 18.95 million (raft), and USD 18.50 million and USD 13.88 million (tube-net). The lowest NPVs were observed in union territories like Diu, Lakshadweep, and Andaman and Nicobar Islands (USD 1.26 million and USD 0.93 million for raft and tube-net, respectively). Internal rates of return were 35.29% for the raft method and 28.57% for the tube-net method. The payback period was slightly shorter for the raft method (0.7&#xa0;years) compared to the tube-net method (0.8&#xa0;years). Thus, the raft method demonstrated superior economic metrics, including net present values and rates of return, across all states and union territories. While the projected figures from PAN India-level economic analyses may not fully reflect real-world outcomes during commercial seaweed farming, they are essential for guiding investors and shaping policy. Key indicators like payback period, breakeven point, NPV, and IRR analysed in this study serve as valuable benchmarks to track project performance during actual implementation.</p>

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Comprehensive analysis of economic proposition of Pan-India commercial seaweed cultivation

  • 期刊论文

  • 发表日期：

    2025年7月10日

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  • Ramalingam Dineshkumar,
  • Bhavik Kantilal Bhagiya,
  • Vaibhav A. Mantri

摘要

The present study was attempted to elucidates and bring out the potential economic contribution of commercial seaweed cultivation at PAN—India level. Kappaphycus alvarezii was considered the targeted species, while cultivation using two commonly employed methods viz. raft, and tube-net was projected. This is in aligned with the Union Government of India’s feedstock production target of 1.12 million tonnes. The study would help to depict how different coastal states and union territories shall perform on economic proposition when the proposed production targets are achieved. Four scenarios were evaluated, considering a 40% subsidy on investment costs and the inclusion or exclusion of manpower costs. The results of economic analysis showed that only the combination of a 40% subsidy and exclusion of manpower costs yielded a positive net present value (NPV). Among all the Indian costal states, Tamil Nadu recorded the highest NPV, with USD 37.90 million for the raft method and USD 27.75 million for the tube-net method. This was followed by Gujarat and Andhra Pradesh states with NPVs of USD 25.26 million and USD 18.95 million (raft), and USD 18.50 million and USD 13.88 million (tube-net). The lowest NPVs were observed in union territories like Diu, Lakshadweep, and Andaman and Nicobar Islands (USD 1.26 million and USD 0.93 million for raft and tube-net, respectively). Internal rates of return were 35.29% for the raft method and 28.57% for the tube-net method. The payback period was slightly shorter for the raft method (0.7 years) compared to the tube-net method (0.8 years). Thus, the raft method demonstrated superior economic metrics, including net present values and rates of return, across all states and union territories. While the projected figures from PAN India-level economic analyses may not fully reflect real-world outcomes during commercial seaweed farming, they are essential for guiding investors and shaping policy. Key indicators like payback period, breakeven point, NPV, and IRR analysed in this study serve as valuable benchmarks to track project performance during actual implementation.