Bioeconomics of mud crab, Scylla paramamosain, culture in Vietnam
Version of Record online: 3 MAR 2013
© 2013 Wiley Publishing Asia Pty Ltd
Reviews in Aquaculture
Volume 5, Issue 1, pages 1–9, March 2013
How to Cite
Petersen, E. H., Phuong, T. H., Van Dung, N., Giang, P. T., Dat, N. K., Tuan, V. A., Nghi, T. V. and Glencross, B. D. (2013), Bioeconomics of mud crab, Scylla paramamosain, culture in Vietnam. Reviews in Aquaculture, 5: 1–9. doi: 10.1111/j.1753-5131.2012.01073.x
- Issue online: 3 MAR 2013
- Version of Record online: 3 MAR 2013
- Received 28 November 2011; accepted 3 April 2012.
- mud crab;
The results of bioeconomic analysis informed by a survey of 80 small-scale mud crab farmers in Vietnam are presented in this paper. Mud crab farming in Vietnam is profitable, with net revenue being approximately 135 and 41 million VND/year (USD 7000–USD 2100 per year) in the central and southern regions, respectively. Profitability was significantly higher in the centre compared with the north, as almost three times the biomass is harvested in the centre compared with the south (in turn, due to higher aquaculture area and survival rates). The benefit–cost ratio (the ratio between total revenue and total costs) is 3.55 in the centre and 1.97 in the south. The crabs are fed almost exclusively on low-value finfish in the centre and the south. Feeding rates were found to be low, with 95% of biomass gain coming from natural feed in the environment rather than supplementary feeding by the farmer. If pellets are to be adopted widely by mud crab farmers, negative perceptions regarding the poor adaptability of mud crab to pellets (northern farmers only), relatively slow growth rates compared with low-value finfish and lack of availability of pellets need to be overcome.