Rice fields to prawn farms: a blue revolution in southwest Bangladesh?

Ahmed, Nesar; Allison, Edward H.; Muir, James F.

doi:10.1007/s10499-009-9276-0

Cited by 91 publications

(93 citation statements)

References 18 publications

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“…Rising groundwater levels may additionally result from local recharge as the volume of rainfall-fed recharge exceeds abstraction for irrigation in southern deltaic areas (BGS and DPHE, 2001). Abstraction for irrigation has declined in coastal areas of Bangladesh where rapid growth in brackish-water shrimp farming since the early 1990s has replaced many low-lying rice fields (Ahmed et al, 2009). Projected rises in sea level will accelerate the intrusion of saline water thereby impairing groundwater quality and threatening the world's largest mangrove forest in the Sundarbans (Alam, 2004) where groundwater plays a vital role in maintaining an intermediate salinity required for mangrove growth and survival (Agrawala et al, 2003).…”

Section: Rising Groundwater Levels and Sea-level Risementioning

confidence: 99%

The analysis of groundwater table variations in Sylhet region, Bangladesh

Zafor

Alam

Rahman

et al. 2017

Environmental Engineering Research

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Abstract. Groundwater levels in shallow aquifers underlying Asian mega-deltas are characterized by strong seasonal variations associated with monsoon rainfall. To resolve trend and seasonal components in weekly groundwater levels in the Ganges-Brahmaputra-Meghna (GBM) Delta, we apply a nonparametric seasonal-trend decomposition procedure (STL) to observations compiled from 1985-2005 in Bangladesh. Seasonality dominates observed variance in groundwater levels but declining groundwater levels (>1 m/yr) are detected in urban and peri-urban areas around Dhaka as well as in north-central, northwestern, and southwestern parts of the country (0.1-0.5 m/yr) where intensive abstraction of groundwater is conducted for dry-season rice cultivation. Rising groundwater levels (0.5-2.5 cm/yr) are observed in the estuarine and southern coastal regions. This novel application of the STL procedure reveals, for the first time, the unsustainability of irrigation supplied by shallow aquifers in some areas (e.g., High Barind Tract) of the GBM Delta and the hydrological impact of potential seawater intrusion of coastal aquifers associated with sea-level rise. Our findings provide important insight into the hydrological impacts of groundwater-fed irrigation and sea-level rise in other Asian mega-deltas where monitoring data are limited.

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Section: Rising Groundwater Levels and Sea-level Risementioning

confidence: 99%

The analysis of groundwater table variations in Sylhet region, Bangladesh

Zafor

Alam

Rahman

et al. 2017

Environmental Engineering Research

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“…Moreover, it made possible to involve the female members of the family in gher farming. Ahmed et al (2010) stated that women are also involved in feeding of prawns, dyke cropping, farm supervision, prawn harvesting and post harvesting handling. In the present study it was found that all the farmers indicated that they were able to improve their socio-economic status after being involved in the gher farming.…”

Section: Discussionmentioning

confidence: 99%

Strength and weakness of existing traceability system of seafood production in Bangladesh

2017

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Gher farming with shrimp and prawn (seafood) is blooming in the south-west region of Bangladesh, impacting positively on household level nutritional security, employment generation and foreign currency earning. Such positive impacts increased the importance of seafood production and trade to the international market from Bangladesh. Out of several food safety requirement of international market, seafood traceability is a key issue for Bangladeshi producers. To develop a traceability system about 200,000 gher farmers were registered by DoF with the support of UNIDO project and a paper based traceability system was developed since 2009. This study was designed to understand existing traceability system, trend of gher ownership changes and its impact on the traceability in term of its strength and weakness. Three gher farming clusters in three upazilas of Bagerhat district were selected to carry out this study to assess the facts above using focus group discussion, key informant interview, questionnaire survey, physical observation, and literature review. The micro-level observation on the gher and its ownership changes were critically analyzed taking the Google Earth images from the farming cluster in the selected upazilas. The study revealed that gher farming has huge positive impacts on total farm productivity, income, and farmers well-being however, land ownership changes impacting negatively on existing traceability of farms. It was found that out of 167 ghers in three clusters, a massive change of gher ownership happened over the last 10 years. Under this situation existing traceability system cannot sustain for a long time. Therefore, land administration system should be brought under digital system and e-traceability needs to be implemented by the collaborative initiative of the Department of Fisheries and the Ministry of Land.Progressive Agriculture 28 (2): 156-166, 2017

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“…This study applied both quantitative and qualitative data collection methods which are used by the following authors, e.g., Ahmed et al [33]. Research was done in collaboration (to help identifying the respondents) with WAB Trading International.…”

Section: Methodsmentioning

confidence: 99%

Key Performance Characteristics of Organic Shrimp Aquaculture in Southwest Bangladesh

Paul

Vogl

2012

Sustainability

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Abstract:In Bangladesh, black tiger shrimp (Penaeus monodon; Fabricius, 1798) aquaculture has come to be one of the most important sectors in both the rural and national economies. Likewise, organic shrimp aquaculture has emerged as an alternative farming enterprise for farmers especially in the southwestern districts of Bangladesh. The present study aims to show key performance characteristics of organic shrimp farmers and farming in a prototypical shrimp farming area in Bangladesh. Data was collected in 2009 from organic shrimp farmers in the Kaligonj and Shyamnagar sub-districts through questionnaire interviews, transect walks and focus group discussions. The mean productivity of organic shrimp farming in the area is 320 kg ha ). Organic farmers are more likely to have a higher monthly income and less aquaculture experience. Moreover, suitable landholdings and classified labor distribution have been found to play an important role in the development of organic shrimp aquaculture. The most common assets of organic shrimp aquaculture are high yield, low production cost, available post larvae and high market prices. Small business farmers are likely to earn more income benefits from organic shrimp aquaculture than their larger-scale counterparts. Finally, the paper suggests that more research is needed to stimulate the success of organic shrimp aquaculture.

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Rice fields to prawn farms: a blue revolution in southwest Bangladesh?

Cited by 91 publications

References 18 publications

The analysis of groundwater table variations in Sylhet region, Bangladesh

The analysis of groundwater table variations in Sylhet region, Bangladesh

Strength and weakness of existing traceability system of seafood production in Bangladesh

Key Performance Characteristics of Organic Shrimp Aquaculture in Southwest Bangladesh

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