Details
| Original language | English |
|---|---|
| Pages (from-to) | 615-642 |
| Number of pages | 28 |
| Journal | Environment, Development and Sustainability |
| Volume | 22 |
| Issue number | 2 |
| Early online date | 7 Jul 2018 |
| Publication status | Published - Feb 2020 |
Abstract
Aquaculture is widely recognised as a way to reduce malnutrition and poverty. So far, research has mainly focused on Asia, and the few studies available from sub-Saharan Africa are predominantly ex-post partial analyses. By constructing a village computable general equilibrium (CGE) model, we aim to investigate whether aquaculture improves local livelihoods and simultaneously has the potential to counteract local overfishing. We apply this to a rural case study region in Namibia where malnutrition, poverty and fish resource overexploitation are current problems. Our village CGE model shows that aquaculture would be a viable livelihood activity improving household incomes and utility through labour reallocations. Furthermore, aquaculture can counteract malnutrition through increased fish consumption. Higher opportunity costs lead to households leaving the fisheries and switching to aquaculture. These substitution effects offer the possibility of reducing the pressure on local freshwater fish stocks. Policy makers can use the results to introduce aquaculture interventions in rural areas. Our findings indicate that such interventions should take particular account of the poorest households, which are most dependent on fisheries. The derived opportunity costs provide information about payments that are necessary to make policy interventions acceptable for different household groups.
Keywords
- Aquaculture, Fish resources, Rural households, Village computable general equilibrium model
ASJC Scopus subject areas
- Social Sciences(all)
- Geography, Planning and Development
- Economics, Econometrics and Finance(all)
- Economics and Econometrics
- Environmental Science(all)
- Management, Monitoring, Policy and Law
Sustainable Development Goals
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In: Environment, Development and Sustainability, Vol. 22, No. 2, 02.2020, p. 615-642.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Aquaculture, fish resources and rural livelihoods
T2 - a village CGE analysis from Namibia’s Zambezi Region
AU - Gronau, Steven
AU - Winter, Etti
AU - Grote, Ulrike
N1 - Funding information: This article has been written in the context of the project ‘SASSCAL—Southern African Service Science Centre for Climate Change and Adaptive Land Management’ (http://www.sasscal.org/). The project is funded by the German Ministry of Education and Research (BMBF) [01LG1201H].
PY - 2020/2
Y1 - 2020/2
N2 - Aquaculture is widely recognised as a way to reduce malnutrition and poverty. So far, research has mainly focused on Asia, and the few studies available from sub-Saharan Africa are predominantly ex-post partial analyses. By constructing a village computable general equilibrium (CGE) model, we aim to investigate whether aquaculture improves local livelihoods and simultaneously has the potential to counteract local overfishing. We apply this to a rural case study region in Namibia where malnutrition, poverty and fish resource overexploitation are current problems. Our village CGE model shows that aquaculture would be a viable livelihood activity improving household incomes and utility through labour reallocations. Furthermore, aquaculture can counteract malnutrition through increased fish consumption. Higher opportunity costs lead to households leaving the fisheries and switching to aquaculture. These substitution effects offer the possibility of reducing the pressure on local freshwater fish stocks. Policy makers can use the results to introduce aquaculture interventions in rural areas. Our findings indicate that such interventions should take particular account of the poorest households, which are most dependent on fisheries. The derived opportunity costs provide information about payments that are necessary to make policy interventions acceptable for different household groups.
AB - Aquaculture is widely recognised as a way to reduce malnutrition and poverty. So far, research has mainly focused on Asia, and the few studies available from sub-Saharan Africa are predominantly ex-post partial analyses. By constructing a village computable general equilibrium (CGE) model, we aim to investigate whether aquaculture improves local livelihoods and simultaneously has the potential to counteract local overfishing. We apply this to a rural case study region in Namibia where malnutrition, poverty and fish resource overexploitation are current problems. Our village CGE model shows that aquaculture would be a viable livelihood activity improving household incomes and utility through labour reallocations. Furthermore, aquaculture can counteract malnutrition through increased fish consumption. Higher opportunity costs lead to households leaving the fisheries and switching to aquaculture. These substitution effects offer the possibility of reducing the pressure on local freshwater fish stocks. Policy makers can use the results to introduce aquaculture interventions in rural areas. Our findings indicate that such interventions should take particular account of the poorest households, which are most dependent on fisheries. The derived opportunity costs provide information about payments that are necessary to make policy interventions acceptable for different household groups.
KW - Aquaculture
KW - Fish resources
KW - Rural households
KW - Village computable general equilibrium model
UR - http://www.scopus.com/inward/record.url?scp=85049555237&partnerID=8YFLogxK
U2 - 10.1007/s10668-018-0212-1
DO - 10.1007/s10668-018-0212-1
M3 - Article
AN - SCOPUS:85049555237
VL - 22
SP - 615
EP - 642
JO - Environment, Development and Sustainability
JF - Environment, Development and Sustainability
SN - 1387-585X
IS - 2
ER -