| Item | Component Description | Unit | Quantity | Unit Cost (Drs) | Total Cost ('000 Drs) | Estimated Working Life (Years) | Annual Depreciation Cost (Drs) |
| Moorings | |||||||
| 1 | Surface chain (new galvanized steel 19mm long link) | m | 120 | 2 500 | 300 | 7 | 42 860 |
| 2 | Surface buoy (new galvanized steel 1 m3 polyurethane foam filled | No. | 4 | 82 000 | 328 | 7 | 46 860 |
| 3 | Surface-to-anchor mooring chain (good quality 2nd hand 19 mm long link) | m | 240 | 1 200 | 288 | 7 | 41 150 |
| 4 | Mooring anchors (new galvanized 100 kg, e.g., “Samson” or “Bruce” design) | No. | 8 | 94 000 | 752 | 10 | 75 200 |
| 5 | Ancillaries (shackles, rope, navigation lights, etc.) | Sum | 100 | 2 | 50 000 | ||
| Cage Collars, etc. | |||||||
| 6 | Pregrowth cage (wood/polystyrene/galvanized metal construction, two walkways, to take net of 25 m2 S.A.) | No. | 10 | 180 000 | 1 800 | 5 | 360 000 |
| 7 | Ongrowing cage (as pregrowth, but 4 walkways and to take net of 50 m2 S.A.) | No. | 10 | 400 000 | 4 000 | 5 | 800 000 |
| 8 | Workraft with food and equipment store (wood/polystyrene/galvanised steel 36 m2) | No. | 2 | 450 000 | 900 | 5 | 180 000 |
| Cage Nets | |||||||
| 9 | 125 m3 (knotless nylon, white 6 mm mesh) | No. | 10 | 100 000 | 1 000 | 3 | 334 000 |
| 10 | 125 m3 (knotless nylon, bitumen treated 13 mm mesh) | No. | 10 | 60 000 | 600 | 3 | 200 000 |
| 11 | 300 m3 (knotless nylon, bitumen treated 18 mm mesh) | No. | 15 | 84 000 | 1 260 | 3 | 420 000 |
| Feeding System | |||||||
| 12 | Automatic feeder (with 12 V vibrator and 50 kg capacity hopper in U.V. resistant PE) | No. | 25 | 23 000 | 575 | 5 | 115 000 |
| 13 | Spinner disc attachment for above | No. | 25 | 18 000 | 450 | 2 | 225 000 |
| 14 | Feeder control unit | No. | 3 | 47 000 | 141 | 3 | 47 000 |
| 15 | Ancillaries (wiring, batteries, etc.) | Sum | 100 | 2 | 50 000 | ||
| TOTAL COST | 12 594 | 2 987 070 |
Assumptions
pregrowth cages used for fish of 1–50 g; maximum stocking density 7.5 kg/m3
ongrowing cages used for fish of 50–350 g; maximum stocking density 15 kg/m3
average length of production cycle 19 months (50% bass, 50% bream)
harvesting over 6 months of year
10 m water depth below cages
2 cage units installed, 1 unit of 10 × 125 m3 cages and 1 unit of 10 × 300 m3 cages
moorings and cages specified for moderately exposed inshore coastal waters
all equipment manufactured in Greece, except nets
costs as at October 1987
