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Community-Based Fish Culture in Irrigation Systems on Seasonal Floodplains

This research focuses on the implementation of community-based fish culture in irrigation systems on seasonal floodplains in the Mekong Delta. The study includes a case study in Vietnam and provides key findings, remarks, and plans for implementation in Vietnam. The research aims to increase income and protein sources for local rural communities through the establishment of inland fishing grounds.

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Community-Based Fish Culture in Irrigation Systems on Seasonal Floodplains

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  1. COMMUNITY BASED FISH CULTURE IN IRRIGATION SYSTEMS SEASONAL FLOODPLAINS Nguyen Van Hao Research Institute for AquacultureN2 Ministry of Fisheries -Viet nam

  2. Thailand Lao PDR Cambodia VietNam Red: flooded in September Yellow: flooded in October Blue: Flooded in March N 0 120 km MAP OF FLOODED AREAS IN MEKONG DELTA – VIET NAM

  3. MAIN CONTENTS 1. BACKGROUND 2. CASE STUDY 3. MAIN FINDINGS 4. KEY REMARKS 5. PLAN FOR VIET NAM 6.CONCLUSION

  4. BACKGROUND • The total surface area of Mekong delta flooded areas is about 1.9 million ha • Flooded period is from July to December. • The water depth is about 0.5 – 5m in which the area with less than 1 m occupied 60% total surface areas. Cambodia 0 Mekong delta flooded map

  5. Thailand Lao PDR Cambodia VietNam Red: flooded in September Yellow: flooded in October Blue: Flooded in March The flooded areas in Mekong delta and ø Cambodia in 2000 (MRC) 0 120 km BACKGROUND (cont.) The Mekong delta flooded areas can be divided into 4 main parts. • Plain of Reed area (Dong Thap,Tien Giang and Long An) Total surface area:703,338 ha. The flooded period:1-5 months Water depth : 0.5m-4m. • Long xuyen quadrangle area (An Giang and Kien Giang) Total surface area : 457,000 ha. The flooded period:1-5 months Water depth : 0.5m-3m

  6. BACKGROUND (cont.) • The western part of Bassac river (An Giang) Total surface area: 365,060 ha. Flooded period : August to December Water depth : 0.5-1.5m 4. The middle part between Mekong and Bassac rivers(DongThap,Cantho, Vinh Long, TienGiang and Tra Vinh) Total surface area:357,277 ha. This is quite abundance of fruit gardens, rice and vegetable fields. The Mekong delta flooded map

  7. BACKGROUND (cont.) The flooded areas are considered a favorable habitat, feeding bed, spawning ground of many fish species.

  8. BACKGROUND (cont.) • Establishing an important inland fishing grounds • Supplying different jobs, income and protein sources to local rural pepople.

  9. Ñoàng Thaùp 2. CASE STUDY Ñoàng Thaùp province: Surface area:83,800 ha. Population: 1,607,800 (2003) 2/3 total surface area flooded every year, especially plain of reed area including different districts such as n Hoàng ngöï, Taân Hoàng, Tam Noâng, Thanh Bình vaø Thaùp Möôøi.

  10. CASE STUDY (Cont.) • SURVEY LOCATION • 1- An Bình B Commune 2- Bình Thaïnh Commune Hoàng Ngöï District Ñoàng Thaùp province Ñieåm NC

  11. MAIN FINDINGS Basic information of survey households

  12. MAIN FINDINGS • Main activities of households - Rice farming : 59.80% -Fishing : 8.82% - Aquaculture : 4.90% Supplementary activities of households • -Fishing : 56.86% • - Aquaculture : 5.88%

  13. Fishing ground and catching intensity

  14. Fish composition in different catch Total : 40 fish species - 12 orders - 6 classes and prawn

  15. Number of species in different catches

  16. Percentage of different fish groups/ total catch

  17. Income of individual and households participating in catching fish /crop (3 months)

  18. 4. KEY REMARKS - Fishing is the main income in flood season for approximately 60% households. - The main fishing grounds are rice fields in which the average fishing catch is higher than rivers and canals.

  19. KEY REMARKS (Cont.) • The main fishing gears applied in the flood season with the mesh size quite small that is varied from 0.5 to 2.5 cm. • The highest fishing catch comes from trawl net. • The main catching fish is cyprinidae families. Two highest fish groups are Henichorynchus spp and Bagridae.

  20. KEY REMARKS (Cont.) • Due to applied unsuitable fishing gears the catch fish is generally quite small. • Beside using catch fish for household consumption fish can be used for aquaculture, especially sold to get more income. • Average income of fisher varied from 10 to 50 USD/month/fisher.

  21. 5. PLAN FOR VIET NAM Project sites: • Three communes in three main ecological areas ( mainly in Dong Thap and An Giang province) for the first two years • Three districts in the two selected provinces for the last three more years.

  22. PLAN FOR VIET NAM Start-up operation • Project introduction in different levels • Site selection and establishment of implementation team. • Discuss with different stakeholders especially farmers groups. • Design and construction • Regulation developed and tested. • Extension packages developed and tested • Extension network established.

  23. PLAN FOR VIET NAM Participating organizations and NGOs • Fresh Aquaculture Research center (RIA 2) will collaborate with DARD and commune manager to implement the project. • Farmers union, Women union, Youth union and fisheries association in different levels. • Fisheries programme (MRC)

  24. PLAN FOR VIET NAM Technical options and institutional arrangements for fish culture • Fish and monosex giant prawn • Other animal • Wild fish • Nursing and conditioning before and after flood season • Group of farmers involved • Suitable regulation in investment, management and profit sharing

  25. CONCLUSION ADVANTAGES • Strongly support from government • Acceptable approach to increase income of farmers in flooded areas • Good experience from previous projects • Suitable environmental condition

  26. CONCLUSION • DISADVANTAGES • Abnormal climate • Farmers habit • Strict criteria for site selection • Unsuitable social approach • Long term strategy of extension activities

  27. THANK YOU

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