Bioeconomic Analysis of Extensive Mud Crab Farming in Vietnam and Analysis of Improved Diets

Petersen, Elizabeth H.; Suc, N.X.; Thanh, Dinh Van; Hien, Tang Thi

doi:10.1080/13657305.2010.549164

Cited by 11 publications

(7 citation statements)

References 7 publications

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“…There is preliminary evidence that while pelleted diets are more expensive then low-value fish, growth rates of fish fed on pellets are generally significantly higher than fish fed on lowvalue fish. These higher growth rates justify the extra expense (Petersen and Phuong 2011;Petersen et al 2011d;Petersen and Glencross 2012).…”

Section: Discussionmentioning

confidence: 97%

Bioeconomics of Grouper, Serranidae: Epinephelinae, Culture in Vietnam

Petersen

Chinh

Diu

et al. 2013

Reviews in Fisheries Science

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This article presents technical and bioeconomic information on culture-based grow-out production of groupers in Vietnam.Grouper farming has good future potential as a viable alternative livelihood for fishers. It is found to be very profitable for cage farmers in northern Vietnam and marginally profitable for cage and pond farmers in central Vietnam. Productivity and total revenue are highest in the north, reflecting relatively high stocking rates, aquaculture area, and harvest prices. Cost per unit production is highest for centrally located cage farmers. The dominant cost sources for these farms are feed (40-60% of total costs) and, to a lesser extent, seed (20%) and labor (12-19%). The feed conversion ratios for these systems, where grouper are fed exclusively low-value finfish, is calculated to be 9 in the north and 12 in the center. It seems that improving the livelihood of grouper farmers in Vietnam is dependent on reducing their dependence on wild stocks for seed and feed, and increasing area and growout time for central farmers. If pellets are to be widely adopted by grouper farmers, perceptions regarding the poor adaptability, relatively slow growth rates compared with low-value finfish, and poor availability of pellets need to be overcome.

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Section: Discussionmentioning

confidence: 97%

Bioeconomics of Grouper, Serranidae: Epinephelinae, Culture in Vietnam

Petersen

Chinh

Diu

et al. 2013

Reviews in Fisheries Science

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“…If pellets are to be widely adopted 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 the lack of availability of pellets need to be overcome. There is preliminary evidence that while pelleted diets are more expensive than low‐value fish, growth rates using pellets are generally significantly higher and justify the extra expense (Petersen & Glencross 2012; Petersen & Phuong 2011; Petersen et al. 2011).…”

Section: Discussionmentioning

confidence: 99%

“…Lindner (2005) conducted a brief economic feasibility study on mud crab aquaculture operations in Vietnam, while reviewing the impacts of mud crab hatchery technology in Vietnam. Petersen et al. (2011) presented the bioeconomic analysis of extensive mud crab farming in Vietnam with a focus on the analysis of improved diets.…”

Section: Introductionmentioning

confidence: 99%

Bioeconomics of mud crab, Scylla paramamosain, culture in Vietnam

Petersen

Phuong

Dũng

et al. 2013

Reviews in Aquaculture

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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.

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“…However, cooperativism may work well in sourcing common supplies and marketing their products. But it needs good leadership and social preparation (e.g., value formation) of members to make it successful (Gutiérrez et al 2010;Primavera et al 2010;Petersen et al 2011). Own labor is the main asset and source of power of the poor households and the key determinant of household output, income, and food security when access to resources is a limiting factor for them (Smith et al 2005).…”

Section: Discussionmentioning

confidence: 99%

Community-Based Technology Transfer in Rural Aquaculture: The Case of Mudcrab Scylla serrata Nursery in Ponds in Northern Samar, Central Philippines

Baticados

Agbayani

Quinitio

2014

AMBIO

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Finding aquaculture development approaches to open up livelihood opportunities for the rural poor and in mainstreaming smallholder fish farmers to reduce poverty remain a challenge. This paper examines the communitybased technology transfer mechanism of mudcrab nursery in ponds and its socioeconomic impacts on smallholder mudcrab growers in Northern Samar, Philippines. Results indicated that the technology is a viable enterprise done by a straight culture system method, which is the rearing of crablets from \1.0 to 4.0 cm for 42 days, or by-phases. However, technology adoption hinges on many factors like area ownership, farm distance from household, and market including the type of strategy needed to enhance technology uptake. Collaboration among research and development institutions and local partners is critical in training and empowering rural communities to adopt aquaculture technologies.

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Bioeconomic Analysis of Extensive Mud Crab Farming in Vietnam and Analysis of Improved Diets

Cited by 11 publications

References 7 publications

Bioeconomics of Grouper, Serranidae: Epinephelinae, Culture in Vietnam

Bioeconomics of Grouper, Serranidae: Epinephelinae, Culture in Vietnam

Bioeconomics of mud crab, Scylla paramamosain, culture in Vietnam

Community-Based Technology Transfer in Rural Aquaculture: The Case of Mudcrab Scylla serrata Nursery in Ponds in Northern Samar, Central Philippines

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