Adoption and impacts of improved mud crab fattening practices on the productivity and wellbeing of coastal farmers in Ba
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Adoption and impacts of improved mud crab fattening practices on the productivity and wellbeing of coastal farmers in Bangladesh Md. Sadique Rahman 1
2
& Mohammad Mizanul Haque Kazal & Shah Johir Rayhan
1
Received: 17 December 2019 / Accepted: 22 July 2020/ # Springer Nature Switzerland AG 2020
Abstract
Mud crab fattening was introduced in Bangladesh as an adaptation strategy to cope with salinity intrusion in coastal areas, but there is a dearth of studies related to the extent of adoption and farm-level impacts of improved mud crab fattening practices. The present study identifies the determinants of adoption of improved practices and assesses their impact on the productivity and wellbeing of farmers. The findings indicate that the level of improved mud crab fattening practices adoption was low. The decision to adopt was significantly influenced by age, education, access to credit, and ownership status, while the extent of adoption depends on training days, the extension contact, and access to credit. The adoption of more than two improved practices significantly increases productivity and improves the wellbeing of crab farmers. Adoption analysis suggests that more research and investment are required to improve the adoption level. Due to their role in raising incomes, there is scope to boost the role of crab fattening in anti-poverty programs. Keywords Adoption . Impact evaluation . Improved practices . IPWRA . Poisson hurdle model . Salinity
* Md. Sadique Rahman [email protected] Mohammad Mizanul Haque Kazal [email protected] Shah Johir Rayhan [email protected]
1
Department of Management and Finance, Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka, Bangladesh
2
Department of Development & Poverty Studies, Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka, Bangladesh
Aquaculture International
Introduction Agricultural farming in coastal areas of Bangladesh faces challenges due to salinity intrusion, which hampers crop production and thus reduces the livelihoods of coastal farmers (Sarwar 2005; Ramachandran 2013: Hoque and Haque 2016; Khanom 2016; Alam et al. 2017). Adaptation strategies, including the cultivation of salt-tolerant rice varieties, shrimp farming, and mud crab fattening, are essential to raising productivity and improve livelihoods (Jodder et al. 2016; Garai 2017; Basu and Roy 2018). Frequent tidal surges, cyclones, and the increased salinity of water reduced rice production, so farmers started brackish water shrimp cultivation in order to tackle salinity intrusion in coastal areas (Paul and Vogl 2011; Ahsan and Brandt 2015; Islam et al. 2016; Khanom 2016). Rapid growth of shrimp farming is likely to have led to negative environmental impacts, including ecological imbalance, land degradation, and disease outbreak (Paul and Vogl 2011). As a result, farmers are now moving to mud crab (Scylla serrata) fattening to cope with the changing climate (Rahman et al. 2017; Basu and Roy 2018). The growth of mud crab fattening is likely to lead to changes in the
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