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CABI Book Chapter

Tropical deltas and coastal zones: Food production, communities and environment at the land and water interface.

Book cover for Tropical deltas and coastal zones: Food production, communities and environment at the land and water interface.

Description

This book with 33 chapters divided into five parts is a compendium of selected papers from the conference that can be broadly categorized as land and water management, fisheries and aquaculture and rice-based agriculture systems. Intensification of aquaculture and rice-based agriculture frequently produces negative effects that range from environmental degradation to social conflict; managing thes...

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Chapter 4 (Page no: 48)

Evolution of shrimp aquaculture systems in the coastal zones of Bangladesh and Vietnam: a comparison.

Based on on-farm surveys implemented in the Ganges Delta in Bangladesh and the Mekong Delta in Vietnam, the dynamics of shrimp aquaculture in salinity-influenced coastal areas were analysed. Qualitative data were collected through interviewing both individual and group farmers in 2005 and 2006, as well as key informants and value chain stakeholders, to obtain an overview of the dynamics of salinity-influenced aquaculture in these two deltas. The first phase of the coastal area's agroeconomic evolution is related to the policy and infrastructure in the course of agroeconomic transformation. A second phase is characterized by the spread of shrimp aquaculture (in successive levels of technology), causing these coastal zones to become areas of strategic export product generation. Different factors such as government policy, demography and international market demand drove this evolution in both deltas. In a third phase, the risk associated with shrimp farming because of shrimp virus outbreaks led farmers to diversify or intensify the aquaculture farming system. The evolution of shrimp farming systems in both deltas has been toward greater diversification of aquaculture technologies and is dependent on both natural environmental factors such as saltwater period duration and soil quality, technical factors such as access to drainage and socio-economic factors such as investment capacity and market demand. Comparing the coastal area of Bangladesh and the Mekong Delta in Vietnam, the key factors identified were land ownership, access to knowledge for the improvement of shrimp culture technology and diversification of aquaculture production. The alternating rice-shrimp system (i.e. rice in the rainy season, followed by shrimp in the dry season) and diversified brackishwater polyculture show more stable economic returns in comparison to extensive and intensive shrimp monoculture in both areas. In Bangladesh, water management infrastructure, access to information and the development of information networks were highlighted as key factors necessary for the improvement of brackishwater aquaculture. In Vietnam, the higher level of technology used in coastal aquaculture underlined the need for the development of better management practices to reduce the environmental burden and to evolve towards sustainable production systems.

Other chapters from this book

Chapter: 1 (Page no: 1) Policy, planning and management at the land-water interface. Author(s): Szuster, B. Hoanh, C. T. Kam, S. P. Ismail, A. M. Noble, A. Borger, M.
Chapter: 2 (Page no: 13) Aquatic resources and environmental variability in Bac Lieu Province (southern Vietnam). Author(s): Baran, E. Chheng, P. Warry, F. Toan, V. T. Hung, H. P. Hoanh, C. T.
Chapter: 3 (Page no: 33) Integrating aquaculture in coastal river planning: the case of Dagupan City, Philippines. Author(s): Andalecio, M. N. Cruz, P. S.
Chapter: 5 (Page no: 64) Ecological risk assessment of an alien aquatic species: a case study of Litopenaeus vannamei (Pacific whiteleg shrimp) aquaculture in the Bangpakong River, Thailand. Author(s): Senanan, W. Panutrakul, S. Barnette, P. Manthachitra, V. Chavanich, S. Kapuscinski, A. R. Tangkrock-Olan, N. Intacharoen, P. Viyakarn, V. Wongwiwatanawute, C. Padetpai, K.
Chapter: 6 (Page no: 80) Ability of Litopenaeus vannamei to survive and compete with local marine shrimp species in the Bangpakong River, Thailand. Author(s): Panutrakul, S. Senanan, W. Chavanich, S. Tangkrock-Olan, N. Viyakarn, V.
Chapter: 7 (Page no: 93) Improving the productivity of the rice-shrimp system in the south-west coastal region of Bangladesh. Author(s): Alam, M. J. Islam, M. L. Saha, S. B. Tuong, T. P. Joffre, O.
Chapter: 8 (Page no: 106) Zooplankton dynamics and appropriate management approach for blue swimming crab in Kung Krabaen Bay, Thailand. Author(s): Tantichaiwanit, W. Gajaseni, N. Piumsomboom, A. Kunsook, C.
Chapter: 9 (Page no: 117) Rebuilding resilient shrimp aquaculture in South-east Asia: disease management, coastal ecology and decision making. Author(s): Bush, S. R. Zwieten, P. A. M. van Visser, L. Dijk, H. van Bosma, R. Boer, F. de Verdegem, M.
Chapter: 10 (Page no: 133) Integrated management of aquatic resources: a Bayesian approach to water control and trade-offs in Southern Vietnam. Author(s): Baran, E. Jantunen, T. Chheng, P. Hoanh, C. T.
Chapter: 11 (Page no: 144) Soil characteristics of saline and non-saline deltas of Bangladesh. Author(s): Saleque, M. A. Uddin, M. K. Salam, M. A. Ismail, A. M. Haefele, S. M.
Chapter: 12 (Page no: 154) Designing resilient rice varieties for coastal deltas using modern breeding tools. Author(s): Ismail, A. M. Thomson, M. J. Vergara, G. V. Rahman, M. A. Singh, R. K. Gregorio, G. B. Mackill, D. J.
Chapter: 13 (Page no: 166) The right rice in the right place: systematic exchange and farmer-based evaluation of rice germplasm for salt-affected areas. Author(s): Singh, R. K. RedoƱa, E. Gregorio, G. B. Salam, M. A. Islam, M. R. Singh, D. P. Sen, P. Saha, S. Mahata, K. R. Sharma, S. G. Pandey, M. P. Sajise, A. G. Mendoza, R. D. Toledo, M. C. Dante, A. Ismail, A. M. Paris, T. R. Haefele, S. M. Thomson, M. J. Zolvinski, S. Singh, Y. P. Nayak, A. K. Singh, R. B. Mishra, V. K. Sharma, D. K. Gautam, R. K. (et al)
Chapter: 14 (Page no: 183) Rice varieties and cultural management practices for high and sustained productivity in the coastal wetlands of southern Bangladesh. Author(s): Salam, M. A. Islam, M. R. Rahman, M. S. Rahman, M. A. Bhuiyan, M. A. R. Seraj, Z. I. Aditya, T. L. Uddin, M. K. Mondal, M. K. Ismail, A. M. Adorada, D. L. Mendoza, R. D. Tumimbang-Raiz, E. B. Gregorio, G. B.
Chapter: 15 (Page no: 199) Boro rice for food security in coastal West Bengal, India. Author(s): Roy, S. K. B.
Chapter: 16 (Page no: 209) Strategies for improving and stabilizing rice productivity in the coastal zones of the Mekong Delta, Vietnam. Author(s): Lang, N. T. Buu, B. C. Viet, N. V. Ismail, A. M.
Chapter: 17 (Page no: 223) Diversified cropping systems in a coastal province of the Mekong Delta, Vietnam: from testing to outscaling. Author(s): Ni, D. V. Phat, T. D. Lu, T. Tung, P. B. V. Ben, D. C. Vu, D. H. Thai, P. H. Giang, P. H. Tuong, T. P.
Chapter: 18 (Page no: 239) Improving rice productivity in the coastal saline soils of the Mahanadi Delta of India through integrated nutrient management. Author(s): Mahata, K. R. Singh, D. P. Saha, S. Ismail, A. M. Haefele, S. M.
Chapter: 19 (Page no: 249) Crop diversification for improving water productivity and rural livelihoods in coastal saline soils of the Mahanadi Delta, India. Author(s): Singh, D. P. Mahata, K. R. Saha, S. Ismail, A. M.
Chapter: 20 (Page no: 264) Water supply and demand for dry-season rice in the coastal polders of Bangladesh. Author(s): Mondal, M. K. Tuong, T. P. Sharifullah, A. K. M. Sattar, M. A.
Chapter: 21 (Page no: 279) An analysis of environmental policy strategies for coastal land conservation in Thailand. Author(s): Pongthanapanich, T.
Chapter: 22 (Page no: 293) Conflicts and governance: perspectives on an eastern and western coastal wetland in India. Author(s): Narayanan, N. C.
Chapter: 23 (Page no: 307) Farmers' assessment of resource management and farm-level technological interventions in the Mekong Delta, Vietnam. Author(s): Can, N. D. Khiem, N. T. Hossain, M. Tuong, T. P.
Chapter: 24 (Page no: 320) Assessing needs, constraints and livelihood opportunities in coastal saline environments: a case in Orissa, India. Author(s): Paris, T. R. Saha, S. Singh, D. P. Mahata, K. R. Cueno, A. delos R. Zolvinski, S. Ismail, A. M.
Chapter: 25 (Page no: 335) Participatory management of coastal resources: a case study of Baganchra-Badurgacha subproject in the South-west of Bangladesh. Author(s): Islam, M. N. Rinfret, J. R. Islam, Q. R.
Chapter: 26 (Page no: 350) Learning to build resilient coastal communities: post-tsunami recovery in Sri Lanka and Indonesia. Author(s): Larsen, R. K. Thomalla, F. Miller, F.
Chapter: 27 (Page no: 367) Social vulnerability to coastal hazards in South-east Asia: a synthesis of research insights. Author(s): Zou, L. Thomalla, F.
Chapter: 28 (Page no: 384) An extended hydrological classification for mangrove rehabilitation projects: a case study in Vietnam. Author(s): Dijksma, R. Loon, A. F. van Mensvoort, M. E. F. van Huijgevoort, M. H. J. van Brake, B. te
Chapter: 29 (Page no: 398) Coastal transects analysis of Chao Phraya Delta, Thailand. Author(s): Chuenpagdee, R. Traesupap, S. Juntarashote, K.
Chapter: 30 (Page no: 409) Mangrove system sustainability: public incentives and local strategies in West Africa. Author(s): Cormier-Salem, M. C. Bernatets, C. Sarr, O.
Chapter: 31 (Page no: 422) Assessing the impact of small-scale coastal embankments: a case study of an LGED polder in Bangladesh. Author(s): Chowdhury, A. K. M. Jenkins, S. A. M. Hossain, M.
Chapter: 32 (Page no: 436) Dynamics of livelihoods and resource use strategies in different ecosystems of the coastal zones of Bac Lieu Province, Vietnam. Author(s): Khiem, N. T. Hossain, M.
Chapter: 33 (Page no: 448) Utilization of aquatic resources along the North Brazilian coast with special reference to mangroves as fish nurseries. Author(s): Saint-Paul, U. Barletta, M.

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