Requirements for Pond Construction
Construction of Fish Culture Pond
A) Criteria of Site Selection
- Land should have more water holding capacity.
- Land Should not be more alkaline or acidic.
- Low lying area are more suitable.
- Site must have assured water supply.
- Outlets and Inlets of ponds should be well built.
- Site should be approachable with road or path.
- Site must be away from floods affected areas.
B) Permissible parameter of soil & water
Soil :-
- Sand (%) - 40
- Silt (%) - 20
- Clay (%) - 40
- Organic carbon (%) - 0.5-2.0
- Available Nitrogen (mg/100gm) - 20-75
- Available Phosphorous (mg/100gm) - 2 10
Water :-
- Colour - Light Green
- Temperature (Degree Centigrade)- 25 - 35
- Transparency(cm) - 30 - 40
- pH - 7.0 - 8.6
- Dissolve Oxygen (mg/lt) - 4 -10
- Carbon Dioxide (mg/lt) - 3 - 7
- Total Alkalinity (mg/lt) - 60 - 230
- Total Nitrogen (mg/lt) - 0.05 -1.5
- Phosphorous (mg/lt) - 0.05 -7.0
- Salinity (ppt) - <5
- Ammonia (ppm) - 0 - 0.1
- Calcium (ppm) - 75 - 150
- Chlorine (ppm) - <0.003
- Total Dissolve solids (ppm) - <80
- Potassium (ppm) - 0.5 - 10
- Iron (ppm) - 0.3 - 10
Time Scheduling for Fish Culture in Pond (PERT/CPM)
Event | Activity | Net Duration Time (Days) |
---|---|---|
A | Identification of site | 10 |
B | Formulation of Project (preparation of plan & estimates, Bank loans etc.) | 30 |
C | Training in Fish Farming | 15 |
D | Construction/Renovation of Pond | 45 |
E | Stocking Management (Liming, Manuring, Filling of water, Growth of plankton and stocking of seed) | 18 |
F | Soil and Water Analysis | Quarterly, After 60 days of seed in the pond. |
G | Sale of Fingerlings | 30 days after stocking of seed |
H | Trial Netting | Every Month |
I | Partial Harvesting | After 150-180 days of Stocking. (10 Jan) |
J | Final Harvesting & Marketing | After 250- 260 days of stocking. |
Construction of Prawn Culture Pond
A - Criteria of Selection of Site
- Site must be easily approachable with road or path.
- Site should be free from floods and seepage.
- Assured water supply system.
- Arrangement of outlet of water be made.
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B - Permissible Parameters for Soil & Water
I) Soil :-
- Texture
- Sand (%) - 40
- Silt (%) -20
- Clay (%) - 40
- Colour - Blackish brown
- Moisture (%) - 35-40
- Water Retention Capacity (%) - 40
- Total Alkalinity (mg/100gm) - 0-150
- Total Hardness (mg/100gm) - 50-180
- Phosphate (mg/100gm) - 0.5-2.0
- Salinity (ppt) - <5
II) Water :-
- Temperature (Celsius) - 28-30
- Dissolved oxygen (mg/lt) - 5-10
- Visibility (cm) - 35-40
- pH -7.0-8.5
- Carbonate (mg/lt) - 30-50
- Total Alkalinity (mg/lt) - 50-180
- Total Hardness (mg/lt) - 50-150
- Conductivity (mohs/cm) - 20-1500
- Salinity (ppt) - <5
- BOD (mg/lt) - <30
- COD (mg/lt) - <40
- Phytoplankton (nos/lt) - >500
- Zooplankton (nos/lt) - >500
Time Scheduling for Prawn Culture in Pond
Event | Activity | Net Time Duration (Days) |
---|---|---|
A | Selection of site & beneficiary | 30 |
B | Training & Study Tour | 15 |
C | Formulation of Project & Sanction of loan from bank | 30 |
D | Construction of Pond & Infrastructure | 45 |
E | Nursery pond preparation & Stocking | 15 |
F | Stocking of Seed in Grow out of Pond | 45 |
G | Trial Netting | After 60 days of Stocking of seed |
H | Soil & water analysis | quarterly |
I | Water exchange | Every month after 60 Days of stocking. |
J | Partial Harvesting | After 150 days of Stocking. |
K | Total Harvesting | After 220-245 days of Stocking |