TY  - RPRT
AB  - Estimates the internal rate of return on costs of investment in a ‘standard’ giant clam farm involved in the ocean phase of giant clam mariculture as a function of the period of ocean growout of Tridacna gigas using Australian data obtained from trials at Orpheus Island Marine Research Station. The standard ocean 'farm is assumed each year to place 100,000 seed clams of approximately one year of age. The optimal length of time to hold them is estimated to be 10 years when they are sold for their meat at $5 per kg at the farm gate. This yields an estimated internal rate of return of 19.5% and maximises the net present value or capitalised value of the farm. The method used to estimate the optimal rotation or harvest cycle for giant clams is similar to that used in the forestry economics literature for determining forest rotation cycles.
AU  - Tisdell, Clem
AU  - Tacconi, Luca
AU  - Barker, J.R.
AU  - Lucas, J.S.
DA  - 1991-04
DA  - 1991-04
DO  - ISSN: 1034-4294
DO  - 10.22004/ag.econ.206543
DO  - Other
DO  - doi
ID  - 206543
KW  - Demand and Price Analysis
KW  - Livestock Production/Industries
KW  - Tridacna gigas
KW  - giant clam farming
KW  - CBA
KW  - Internal rate of return
L1  - https://ageconsearch.umn.edu/record/206543/files/WPGCM22.pdf
L2  - https://ageconsearch.umn.edu/record/206543/files/WPGCM22.pdf
L4  - https://ageconsearch.umn.edu/record/206543/files/WPGCM22.pdf
LA  - eng
LK  - https://ageconsearch.umn.edu/record/206543/files/WPGCM22.pdf
N2  - Estimates the internal rate of return on costs of investment in a ‘standard’ giant clam farm involved in the ocean phase of giant clam mariculture as a function of the period of ocean growout of Tridacna gigas using Australian data obtained from trials at Orpheus Island Marine Research Station. The standard ocean 'farm is assumed each year to place 100,000 seed clams of approximately one year of age. The optimal length of time to hold them is estimated to be 10 years when they are sold for their meat at $5 per kg at the farm gate. This yields an estimated internal rate of return of 19.5% and maximises the net present value or capitalised value of the farm. The method used to estimate the optimal rotation or harvest cycle for giant clams is similar to that used in the forestry economics literature for determining forest rotation cycles.
PY  - 1991-04
PY  - 1991-04
T1  - Economics of Ocean Culture of Giant Clams: Internal Rate of Return Analysis for Tridacna gigas
TI  - Economics of Ocean Culture of Giant Clams: Internal Rate of Return Analysis for Tridacna gigas
UR  - https://ageconsearch.umn.edu/record/206543/files/WPGCM22.pdf
Y1  - 1991-04
T2  - Research Reports in the Economics of Giant Clam Mariculture
T2  - 22
ER  -