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An Economic Assessment of Sea Urchin (Tripneustes gratilla) Culture Public Deposited

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  • A community based sea urchin (Tripneustes gratilla) culture was chosen as an alternative livelihood by fisherfolks of Nalvo, a fishing village along the South China Sea in Sta. Maria, Ilocos Sur, Philippines. The sea urchin culture was adopted among fishermen to augment their rapidly declining income from fishing. The said activity actively involves members of the family including small children in gathering sea urchin juveniles as well as in feeding the sea urchins and cleaning the cages. The sea urchin culture site is situated along the shallow sea grass beds and coral reef area in the village. This paper presents an economic assessment of the sea urchin culture activity focusing on the investment cost and income generated. Results showed that it had a very minimal investment of P3,661.00 (cost of one bamboo plastic cage =P1,661.00 and cost of 1,000 pcs of sea urchin juveniles at P2/pc = P2,000.00). The economic life of the cages is three years. The estimated net income after one year with two production cycles is P14,646.00 with an ROI of 322%, BCR of 3.2 and NPV of P23,040.00 are calculated for a three year operation.
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  • Ungson, Julita. 2006. An Economic Assessment of Sea Urchin (Tripneustes gratilla) Culture. In: Proceedings of the Thirteenth Biennial Conference of the International Institute of Fisheries Economics & Trade, July 11-14, 2006, Portsmouth, UK: Rebuilding Fisheries in an Uncertain Environment. Compiled by Ann L. Shriver. International Institute of Fisheries Economics & Trade, Corvallis, Oregon, USA, 2006. CD ROM. ISBN 0-9763432-3-1
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  • The National Oceanic & Atmospheric Administration Marine Fisheries Service, United States Department of Commerce (NOAA Fisheries); United Kingdom Department for Environment, Food and Rural Affairs (DEFRA); The United States Agency for International Development supported Aquaculture Collaborative Research and Support Program (ACRSP).
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