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Impact of climate change on the technical efficiency of striped catfish, Pangasianodon hypophthalmus, farming in the Mekong Delta, Vietnam

Nguyen, Lam A., Phan, Tung B. V., Bosma, Roel, Verretth, Johan, Leemans, Rik, De Silva, Sena and Lansink, Alphons O. 2018, Impact of climate change on the technical efficiency of striped catfish, Pangasianodon hypophthalmus, farming in the Mekong Delta, Vietnam, Journal of the world aquaculture society, vol. 49, no. 3, pp. 570-581, doi: 10.1111/jwas.12488.

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Title Impact of climate change on the technical efficiency of striped catfish, Pangasianodon hypophthalmus, farming in the Mekong Delta, Vietnam
Author(s) Nguyen, Lam A.
Phan, Tung B. V.
Bosma, Roel
Verretth, Johan
Leemans, Rik
De Silva, SenaORCID iD for De Silva, Sena orcid.org/0000-0001-9381-2136
Lansink, Alphons O.
Journal name Journal of the world aquaculture society
Volume number 49
Issue number 3
Start page 570
End page 581
Total pages 12
Publisher John Wiley & Sons
Place of publication Chichester, Eng.
Publication date 2018-06
ISSN 0893-8849
Keyword(s) climate change
efficiency
flooding
pangasius
salinity
Summary The technical efficiency of randomly sampled pangasius farms in the Mekong Delta of Vietnam was estimated using data envelopment analysis, and factors affecting technical and scale efficiency were examined with bootstrap truncated regression. The mean technical efficiency score assuming variable returns to scale was 0.84. The technical efficiency of downstream farmers was higher due to lower energy costs and stocking once a year. Most of the up‐ and midstream farms needed to pump water and stocked at least three times in 2 yr. Regression analysis showed a positive effect on technical efficiency of the farmers' education level and having experienced climate change impact through flooding or salinity intrusion in the past. Farms affected by salinity intrusion had a lower scale efficiency as they reduce stocking frequency and rate. In general, reducing fish mortality and the cost of inputs, increasing scale of operation, and being trained, using appropriate methods, in management strategies may improve technical efficiency.
Language eng
DOI 10.1111/jwas.12488
Field of Research 0704 Fisheries Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2017, The Authors
Free to Read? Yes
Use Rights Creative Commons Attribution non-commercial licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30105231

Document type: Journal Article
Collections: School of Life and Environmental Sciences
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.