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Djulin Marine Aboriginal Corporation

Aquaculture profit estimates

Giant Clams at Pioneer Bay, Orpheus Island

 

The following table shows the value of farming giant clams (Tridacna gigas) as a medium to large-scale aquaculture business:

 

Giant clam culture estimates [e.g. Tridacna gigas].  Note most likely market age is 3-6 years
Year of age Approx. size (cm) Stocking density/ sq m Annual survival rate $ value per clam Total per ha surviving $ value of clams per ha Total in 10 ha surviving $ value of clams per 10 ha Total in 50 ha surviving $ value of clams per 50 ha
0.5
1.5
1000
0.25
0.75
2,500,000
1875000
1
2.5
500
0.3
1
1,500,000
1500000
2
9
50
0.4
2.75
200,000
550000
2,000,000
5500000
10000000
27500000
3
15
30
0.45
4
135,000
540000
1,350,000
5400000
6750000
27000000
4
21
20
0.53
5.5
106,000
583000
1,060,000
5830000
5300000
29150000
5
27
17
0.65
7
110,500
773500
1,105,000
7735000
5525000
38675000
6
32
13
0.72
8.5
93,600
795600
936,000
7956000
4680000
39780000
7
37
10
0.8
10
80,000
800000
800,000
8000000
4000000
40000000
8
41
5
0.86
12
43,000
516000
430,000
5160000
2150000
25800000
9
44
5
0.88
15
44,000
660000
440,000
6600000
2200000
33000000
10
49
3
0.91
18
27,300
491400
273,000
4914000
1365000
24570000
11
52
3
0.94
22
28,200
620400
282,000
6204000
1410000
31020000
12
55
2
0.94
27
18,800
507600
188,000
5076000
940000
25380000
13
60
2
0.95
32
19,000
608000
190,000
6080000
950000
30400000
14
64
1
0.95
40
9,500
380000
95,000
3800000
475000
19000000
15
69
1
0.96
50
9,600
480000
96,000
4800000
480000
24000000
16
73
1
0.96
60
9,600
576000
96,000
5760000
480000
28800000
17
75
0.7
0.97
70
6,790
475300
67,900
4753000
339500
23765000
18
77
0.7
0.97
80
6,790
543200
67,900
5432000
339500
27160000
19
79
0.5
0.98
90
4,900
441000
49,000
4410000
245000
22050000
20
80
0.5
0.98
100
4,900
490000
49,000
4900000
245000
24500000

 

updated 13th Nov 2013

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