TECHNICAL ASSISTANCE
TO THE
PROPOSED BRACKISHWATER AQUACULTURE CENTRE FOR MADAGASCAR
A Report to the Government of the
Malagasy Democratic Republic
by
T.J. Jamandre, Jr.
Consultant
(MAG/76/002)
Antananarivo, Madagascar
May 1979
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1.1 Background
1.2 Brackishwater aquaculture
1.3 The consultancy
2. SURVEY AND SELECTION OF SITE FOR DEVELOPMENT
2.1 Diego Suarez
2.2 Majunga
2.3 Selection of site
3. FRY AVAILABILITY AND SURVEY PROGRAMME
4. PLAN OF DEVELOPMENT AND MANAGEMENT OF SELECTED SITE
4.1 Design of general management
4.2 Progression method
4.3 Multi-size method
4.4 Other management possibilities
4.5 Water control gates and dikes
4.6 Use of pumps and other facilities
4.7 Additional facilities for the Centre's physical plant
5. CONSTRUCTION NOTES OF THE DIEGO SUAREZ PROJECT SITE
5.1 Dikes
5.2 Pond construction
5.3 Other observations and recommendations on the construction
5.4 Various data on costs useful for the project
6. THE NEED FOR TRAINING
7. SUMMARY AND RECOMMENDATIONS
8. LIST OF REFERENCES
1 Evaluation of suitability of sites visited
2 Meteorological information - Diego Suarez
3 Meteorological information - Majunga
4 Data on excavating required in project site (cut)
5 Data on dike information in project site (fill)
6 Details of water control gates for project
1 Map of Madagascar
2 Project location map of Diego Suarez selected site
3 Graphic presentation of typical tidal cycle, Diego Suarez and Majunga
4 Typical cycle for high tides in Diego Suarez and Majunga
5 Mean monthly rainfall for 26 years (1950–76)
6 Diego Suarez brackishwater aquaculture project phased development programme
7 Diego Suarez brackishwater aquaculture project general layout
8 Detailed layout of Diego Suarez project with key to diagrams
9 Details of overflow section on perimeter dike (Dike A)
10 Details of Dike J
11 Cross-sectional details of ponds in Phase I
12 Details of Dike B
13 Details of primary gate, double water passage
14 Alternate primary gate plan, with provision for vertical propeller pump
15 Details for concrete crossgate
16 Details for secondary concrete gate, single water passage
17 Details for tertiary concrete gate
18 Tertiary wooden gate - Details A
19 Tertiary wooden gate - Details B
20 Tertiary wooden gate - Details C
21 Project physical site and arrangements
This is a report to the Government of Madagascar through the FAO/UNDP project on Development of Fisheries and Aquaculture (MAG/76/002). The consultant determined the suitability of various mangrove swamp sites identified as available for development for the proposed brackishwater aquaculture development and research centres for the country. After selecting the most suitable site for this project, among a number of alternative sites surveyed in Diego Suarez in the north and Majunga in the northwest coast, the plan for development and future production management programme are explained. Layout and construction specifications are described.