| Source: | River Rewa |
| By: | pumping |
| Pipe dimensions: | 150 mm diameter |
| Number of pumps: | 1 |
| No. of standby pumps: | 1(+1 spare) |
| Duration of pumping (hours per day): | 8–24 h |
| Reservoir capacity at site: | 237 m3 |
| Number of reservoirs: | 1 |
| Size of reservoir (W × L × D) | 7.2 × 13.2 × 2.5 m |
Tanks (outdoor; marked as KD-6 - KD-15:for details see Table 6.)
| Species: | Tilapia |
| Number of tanks: | 10 |
| Volume : | 12 and 32 m3 |
| Water depth in tank: | 0.8–1 m |
| Water supply: | by gravity from the concrete reservoir |
| Drainage: | by gravity from the concrete reservoir |
Indoor (hatching hall)
| Area: | 64.8 m2 |
| Species: | Carps |
| Number of tanks: | 3 8 2 |
| Volume: | 200 litre 500 litre 1000 litre |
| Water depth in tanks: | 0.8 – 1 m |
| Water supply: | by gravity from the concrete reservoir |
| Drainage: | by gravity from the concrete reservoir |
Indoor (hatching house)
| Area: | 200 m2 |
| Species: | Freshwater prawn |
| Number of tanks: | 18 3 |
| Volume: | 500 litre 1000 litre |
| Water depth: | 1 m |
| Water supply: | by gravity from the concrete reservoir |
| Drainage: | by gravity from the concrete reservoir |
| Sea water supply: | from the jetty at University of South Pacific |
Tanks (outdoor; marked as KD-1 - KD-5 and KD-16 - KD-21: for details see Table 6.)
| Specie | Tilapia |
| Number of tanks: | 11 |
| Volume: | 10 and 12 m3 |
| Water depth in tank: | 0.7 – 0.8 m |
| Water supply: | by gravity from the concrete reservoir |
| Drainage: | by gravity from the concrete reservoir |
Tanks (in carp hatchery hall)
No separate units exist for rearing.
Tanks (in prawn hatchery house)
No separate units exist for rearing.
Table 6. Fibreglass and concrete tanks at NRS
| Name | material | water volume per tank (m3) | tank volume (m3) | size (m) | depth (m) | surface m2 |
|---|---|---|---|---|---|---|
| Tilapia hatching / rearing (circular) tanks | ||||||
| KD-1 | concrete | 9.4 | 12.6 | Æ 4.0 | 1.0 | 12.6 |
| KD-2 - KD-5 (4 pcs) | fibre-glass | 14.7 | 19.6 | Æ 5.0 | 1.0 | 19.6 |
| KD-6 - KD-9 (4 pcs) | fibre-glass | 24.6 | 32.0 | Æ 5.6 | 1.3 | 24.6 |
| KD-10 | concrete | 9.4 | 12.6 | Æ 4.0 | 1.0 | 12.6 |
| KD-11 - KD-15 (5 pcs) | fibre-glass | 24.6 | 32.0 | Æ 5.6 | 1.3 | 24.6 |
| KD-16 - KD-21 (6 pcs) | fibre/glass | 16.6 | 22.1 | Æ 5.3 | 1.0 | 22.1 |
| Carp spawning tank | fibre-glass | 50.2 | 60.0 | Æ 8.0 | 1.2 | 50.2 |
| Holding tank | 17.8 | 23.7 | Æ 5.5 | 1.0 | 23.7 | |
| Rectangular tanks | ||||||
| Filtering | concrete | 37.5 | 46.9 | 6.7 × 7.0 | 1.0 | 46.9 |
| Reservoir | concrete | 27.7 | 34.6 | 4.8 × 7.2 | 1.0 | 34.6 |
| Holding and spawning (4 pcs) | concrete | 19,. | 23.8 | 4.75 × 5.0 | 1.0 | 95.0 |
See also 2.1 above
| Area: | 64.8 m2 (7.2m × 9.0m) | |||
| Water supply: | Indoor overhead tank (fibre-glass) | |||
| 1.7 m3 (0.9m × 2.35m × 0.8m) | ||||
| Equipment-plastic tanks | ||||
| 3 pcs | 200 litre | diam= | 0.65m | |
| 8 | 500 | 1.0 | ||
| 2 | 1000 | 1.3 | ||
| Area: | 39.0 m2 (5.4m × 7.2m) |
Office 100m2
Workshop 80 m2
Feed mill 100 m2
Equipment: mixers, grinders, extruder, crumbler, siever and drier with estimated capacity of 70 – 100 kg of dry pelleted feed per day.
Tea room / Equipment Store / Feed Store 200 m2
The number of ponds is 40 covering 45.6 ha pond surface.
As Table 7 shows, the ponds vary in size, and ponds having the same function may have considerable difference in size.
| Name | area | width | length | depth | water depth | outlet |
|---|---|---|---|---|---|---|
| (m2) | (m) | (m) | (m) | (m) | ||
| Spawning ponds (SP) | ||||||
| SP-1 | 4,490 | 1.7–2.0 | 1.5 | sluice Æ300 mm | ||
| SP-2 | 3,680 | 1.2–1.5 | 1.0 | sluice Æ300 mm | ||
| SP-3 | 1,960 | 1.7–2.0 | 1.5 | sluice Æ300 mm | ||
| SP-4 | 1,720 | 1.7–2.0 | 1.5 | sluice Æ300 mm | ||
| SP-5 | 1,830 | 1.7–2.0 | 1.5 | sluice Æ300 mm | ||
| SP-6 | 3,250 | 1.2–1.5 | 1.0 | sluice Æ300 mm | ||
| SP-7 | 3,250 | 1.2–1.5 | 1.0 | sluice Æ300 mm | ||
| SP-8 | 1,550 | 1.2–1.5 | 1.0 | sluice Æ300 mm | ||
| SP-9 | 1,800 | 1.2–1.5 | 1.0 | sluice Æ300 mm | ||
| SP-10 | 1,800 | 1.2–1.5 | 1.0 | sluice Æ300 mm | ||
Total: 27,160 (Average:2,160) | ||||||
| Nursery ponds (NP) | ||||||
| NP-1 | 520 | 1.2–1.5 | 1.0 | sluice Æ300 mm | ||
| NP-2 | 480 | 1.2–1.5 | 1.0 | sluice Æ300 mm | ||
| NP-3 | 580 | 1.2–1.5 | 1.0 | sluice Æ300 mm | ||
| NP-4 | 351 | 13 | 27 | 1.2–1.5 | 1.0 | sluice Æ300 mm |
| NP-5 | 336 | 12 | 28 | 1.2–1.5 | 1.0 | sluice Æ300 mm |
| NP-6 | 364 | 13 | 28 | 1.2–1.5 | 1.0 | sluice Æ300 mm |
| NP-7 | 338 | 13 | 26 | 1.2–1.5 | 1.0 | sluice Æ300 mm |
| NP-8 | 338 | 13 | 26 | 1.2–1.5 | 1.0 | sluice Æ300 mm |
| NP-9 | 406 | 14 | 29 | 1.2–1.5 | 1.0 | PVC Æ100 mm |
| NP-10 | 420 | 14 | 30 | 1.2–1.5 | 1.0 | PVC Æ100 mm |
| NP-11 | 392 | 14 | 28 | 1.2–1.5 | 1.0 | PVC Æ100 mm |
| NP-12 | 336 | 12 | 28 | 1.2–1.5 | 1.0 | PVC Æ100 mm |
| NP-13 | 420 | 15 | 28 | 1.2–1.5 | 1.0 | PVC Æ100 mm |
Total: 5,181 (Average:398) | ||||||
| RP-1 | 1,156 | 34 | 34 | 1.2–1.5 | 1.0 | sluice Æ300 mm |
| RP-2 | 1,100 | 1.2–1.5 | 1.0 | sluice Æ300 mm | ||
| RP-3 | 600 | 1.2–1.5 | 1.0 | sluice Æ300 mm | ||
| RP-4 | 530 | 1.2–1.5 | 1.0 | sluice Æ300 mm | ||
| RP-5 | 850 | 1.2–1.5 | 1.0 | sluice Æ300 mm | ||
| RP-6 | 960 | 1.2–1.5 | 1.0 | sluice Æ300 mm | ||
| RP-7 | 600 | 1.2–1.5 | 1.0 | sluice Æ300 mm | ||
| RP-8 | 710 | 1.2–1.5 | 1.0 | sluice Æ300 mm | ||
| RP-9 | 800 | 1.2–1.5 | 1.0 | sluice Æ300 mm | ||
| RP-10 | 820 | 1.2–1.5 | 1.0 | sluice Æ300 mm | ||
| RP-11 | 1,190 | 1.2–1.5 | 1.0 | sluice Æ300 mm | ||
Total: 9,316 (Average: 847) | ||||||
| Name | area (m2) | width (m) | length (m) | depth (m) | op. w. d. (m) | outlet |
| Tilapia genetic ponds (TG) | ||||||
| TG-1 | 651 | 21 | 31 | 1.2–1.5 | 1.0 | PVC Æ150 mm |
| TG-2 | 651 | 21 | 31 | 1.2–1.5 | 1.0 | PVC Æ150 mm |
| TG-3 | 672 | 21 | 32 | 1.2–1.5 | 1.0 | PVC Æ150 mm |
| TG-4 | 620 | 20 | 31 | 1.2–1.5 | 1.0 | PVC Æ150 mm |
Total: 2,594 (Average:649) | ||||||
| Feed trial ponds (FT) | ||||||
| FT-1 | 646 | 19 | 34 | 1.2–1.5 | 1.0 | sluice Æ300 mm |
| FT-2 | 726 | 22 | 33 | 1.2–1.5 | 1.0 | sluice Æ300 mm |
Total: 1,372 (Average:686) | ||||||
