Impact of Climate Change on the Technical Efficiency of Striped Catfish, Pangasianodon hypophthalmus, Farming in the Mekong Delta, Vietnam

L.A. Nguyen, Tung B.V. Pham, R.H. Bosma, J.A.J. Verreth, H.B.J. Leemans, Sena De Silva, A.G.J.M. Oude Lansink

Research output: Contribution to journalArticleAcademicpeer-review

2 Citations (Scopus)

Abstract

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.
Original languageEnglish
Pages (from-to)570-581
JournalJournal of the World Aquaculture Society
Volume49
Issue number3
Early online date30 Nov 2017
DOIs
Publication statusPublished - Jun 2018

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Pangasianodon hypophthalmus
technical efficiency
Vietnam
farming systems
climate change
farms
Pangasius
salinity
farmers
farm
input costs
educational status
energy costs
pumps
data analysis
returns to scale
regression analysis
data envelopment analysis
cost
fish

Cite this

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title = "Impact of Climate Change on the Technical Efficiency of Striped Catfish, Pangasianodon hypophthalmus, Farming in the Mekong Delta, Vietnam",
abstract = "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.",
author = "L.A. Nguyen and Pham, {Tung B.V.} and R.H. Bosma and J.A.J. Verreth and H.B.J. Leemans and {De Silva}, Sena and {Oude Lansink}, A.G.J.M.",
year = "2018",
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pages = "570--581",
journal = "Journal of the World Aquaculture Society",
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publisher = "Wiley",
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}

Impact of Climate Change on the Technical Efficiency of Striped Catfish, Pangasianodon hypophthalmus, Farming in the Mekong Delta, Vietnam. / Nguyen, L.A.; Pham, Tung B.V.; Bosma, R.H.; Verreth, J.A.J.; Leemans, H.B.J.; De Silva, Sena; Oude Lansink, A.G.J.M.

In: Journal of the World Aquaculture Society, Vol. 49, No. 3, 06.2018, p. 570-581.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Impact of Climate Change on the Technical Efficiency of Striped Catfish, Pangasianodon hypophthalmus, Farming in the Mekong Delta, Vietnam

AU - Nguyen, L.A.

AU - Pham, Tung B.V.

AU - Bosma, R.H.

AU - Verreth, J.A.J.

AU - Leemans, H.B.J.

AU - De Silva, Sena

AU - Oude Lansink, A.G.J.M.

PY - 2018/6

Y1 - 2018/6

N2 - 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.

AB - 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.

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