Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/53694
Title: Risks and adaptation dynamics in shrimp and prawn-based farming systems in southwest coastal Bangladesh
Contributor(s): Jamal, Md Roushon  (author); Kristiansen, Paul  (supervisor)orcid ; Kabir, Md Jahangir  (author); Lobry De Bruyn, Lisa  (author)orcid 
Publication Date: 2023-01-15
Early Online Version: 2022-09-14
DOI: 10.1016/j.aquaculture.2022.738819
Handle Link: https://hdl.handle.net/1959.11/53694
Abstract: The shrimp industry in Bangladesh is an important economic sector with growing demand, export potential, and employment opportunities. However, the industry is threatened by external and local production and market risks. Risk management strategies can be implemented through farming systems modification developing of different types of shrimp and prawn-based systems, although the adaptive capacity and economic and socio-ecological impacts are unclear. This study evaluated risks, adaptation strategies, profitability, and socio-ecological dynamics in two shrimp-based (shrimp/shrimp/shrimp and wet season (WS) rice/shrimp/shrimp) and two prawn-based (prawn/dry season (DS) rice/prawn and prawn/DS rice/prawn/dike crops) farming systems. Data was collected using focus group discussions (n = 45), household case studies (n = 18), household surveys (n = 120), and key informant interviews (n = 20). Major risks identified included disease outbreaks, lack of tidal water, salinisation, heat extremes, irregular and reduced rainfall, and price fluctuations. Agronomic management (modifying production systems, adjusting farming operations, input applications, dike cropping) was the dominant adaptation strategy in addition to financial mechanisms (market update, selling live stocks and inputs credits), gher management (water management, excavation, dike management) and water management. Adverse socio-ecological impacts of shrimp farming included salinisation, biodiversity loss, soil and water contamination, and reduced crop and livestock production. In contrast, positive impacts of prawn farming included crop diversification and livestock production and decreased salinisation, soil degradation, and biodiversity loss. Despite higher production costs, prawn-based systems generated net income nearly three times higher (USD 3410 to 4470) as compared to shrimp-based systems (USD 1570 to 1790) because dike crops added about 25% extra income. A critical insight of the research is that the prawn-based systems (prawn/DS rice/prawn/dike crop and prawn/DS rice/prawn) were economically more viable (profitable and less risky) than the shrimp-based system. However, neither the shrimp nor prawn system is feasible in all locations. Improved and semi-intensive shrimp farming in high salinity areas with available tidal water and an integrated prawn-based farming system in low to moderate salinity areas can be a viable agricultural land use planning in southwest coastal Bangladesh. This research can contribute to sustainable land use planning for brackish water shrimp and fresh water prawns, and planning to increase the profitability, risk resilience and competitiveness of the shrimp- and prawn-based farming systems with less socioecological impacts.
Publication Type: Journal Article
Source of Publication: Aquaculture, v.562, p. 1-17
Publisher: Elsevier BV
Place of Publication: Netherlands
ISSN: 1873-5622
0044-8486
Fields of Research (FoR) 2020: 300202 Agricultural land management
300501 Aquaculture
410103 Human impacts of climate change and human adaptation
Socio-Economic Objective (SEO) 2020: 100205 Aquaculture prawns
190102 Ecosystem adaptation to climate change
180299 Coastal and estuarine systems and management not elsewhere classified
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Appears in Collections:Journal Article
School of Environmental and Rural Science

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