@article{Tisdell:206543,
      recid = {206543},
      author = {Tisdell, Clem and Tacconi, Luca and Barker, J.R. and  Lucas, J.S.},
      title = {Economics of Ocean Culture of Giant Clams: Internal Rate  of Return Analysis for Tridacna gigas},
      address = {1991-04},
      number = {1743-2016-140784},
      series = {Research Reports in the Economics of Giant Clam  Mariculture},
      pages = {11},
      year = {1991},
      abstract = {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.},
      url = {http://ageconsearch.umn.edu/record/206543},
      doi = {https://doi.org/10.22004/ag.econ.206543},
}