Financial feasibility of green-water shrimp farming associated with mangrove compared to extensive shrimp culture in the Mahakam Delta, Indonesia
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This paper presents a post-hoc assessment of the introduction of intensive shrimp farming strategies, with and without green-water (GW) technology, in the Mahakam Delta where extensive systems (ES) dominate. The study also assesses the potential of integrated mangrove GW shrimp production (MGW). The method section describes the systems considered, the cost-benefit analysis applied and the assumptions for different scenarios. The data for the GW and non-GW systems were based on a survey in the Philippines. Assessing cultured shrimp yields from the total farm area showed that production from non-GW was 10% higher than from GW farms. Compared to these two systems, the MGW system produces about 20% of the total shrimp, but provides complementary livelihood options and ecosystem services. Per unit area covered, MGW system produces 20 times more shrimp than ES, while income for farmers doubles and opportunities for livelihoods enhancement associated with the mangrove area increase. Low operating costs make the ES interesting for resource poor farmers, but risks to producers and societal cost are underrated. Transferring from ES to MGW system will increase the contribution to the national economy whilst maintaining ecosystem services, that would otherwise be lost, were intensive culture systems to predominate.
Paper presented at the 9th Asian Fisheries and Aquaculture Forum April 21-25, 2011, Shanghai, China
CitationBosma, R. H., Tendencia, E. A., & Bunting, S. W. (2012). Financial feasibility of green-water shrimp farming associated with mangrove compared to extensive shrimp culture in the Mahakam Delta, Indonesia.
PublisherAsian Fisheries Society
Preparation of this paper was supported by the MANGROVE project which received research funding from the European Community’s Sixth Framework Programme [Contract: INCO-CT-2005-003697], and from the RESCOPAR project funded by the INREF programme of Wageningen University. This publication reflects the authors’ views and the European Community is not liable for any use that may be made of the information contained herein.
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magazineArticleThis article briefly summarizes the techniques developed, verified and/or refined during the implementation of the Project on the Promotion of Mangrove-Friendly Shrimp Aquaculture in Southeast Asia, which was implemented by the SEAFDEC Aquaculture Department from 2000 to 2005. Conducted under the ASEAN-SEAFDEC FCG collaborative mechanism, the project which received generous funding from the Government of Japan through its JTF Program, aimed to develop sustainable culture technology packages on shrimp farming that are friendly to mangroves and the environment.
ArticleJH Primavera, JP Altamirano, MJHL Lebata, AA delos Reyes Jr. & CL Pitogo -
Bulletin of Marine Science, 2007 - University of Miami, Rosenstiel School of Marine and Atmospheric ScienceThe capacity of a natural mangrove system in Ibajay, Aklan province, central Philippines to process shrimp pond culture effluents was assessed through analysis of mangrove community structure and 24-hr monitoring of water quality parameters (NH3-N, NO3-N, PO4-P, sulfide, and total suspended solids). Results from the latter showed decreased nutrient levels within 6 hrs after daytime draining of effluents into the mangrove stand, but only nitrate reduction was statistically significant. Based on nitrate loss, volume of water drained, mangrove area, and shrimp farming data (e.g., N loss from ponds, feed composition, feeding rate), calculations show that 1.8–5.4 ha of mangroves are required to remove nitrate wastes from 1 ha of shrimp pond. N uptake by the mangrove macroflora was supported by data showing longer nipa palm leaflets and faster mangrove seedling growth in the experimental mangrove receiving effluents compared to a control mangrove, but not from mangrove biomass measurements. These results have significant implications for the Philippine brackishwater pond culture industry to conserve or rehabilitate mangroves as potential pond biofilters, to implement legally mandated 20- and 50-m greenbelts, and to reverse the national 0.5 ha mangrove: 1.0 ha pond ratio.
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