000206543 001__ 206543 000206543 005__ 20210122074836.0 000206543 0247_ $$aISSN: 1034-4294$$2Other 000206543 0247_ $$2doi$$a10.22004/ag.econ.206543 000206543 037__ $$a1743-2016-140784 000206543 041__ $$aeng 000206543 084__ $$aQ57 000206543 084__ $$aQ21 000206543 084__ $$aQ22 000206543 245__ $$aEconomics of Ocean Culture of Giant Clams: Internal Rate of Return Analysis for Tridacna gigas 000206543 260__ $$c1991-04 000206543 269__ $$a1991-04 000206543 270__ $$mc.tisdell@economics.uq.edu.au$$pTisdell, Clem 000206543 270__ $$mluca.tacconi@anu.edu.au$$pTacconi, Luca 000206543 270__ $$mj.lucas@uq.edu.au$$pLucas, J.S. 000206543 300__ $$a11 000206543 336__ $$aWorking or Discussion Paper 000206543 490__ $$aResearch Reports in the Economics of Giant Clam Mariculture 000206543 490__ $$a22 000206543 520__ $$aEstimates the internal rate of return on costs of investment in a ‘standard’ giant clam farm involved in the ocean phase of giant clam mariculture as a function of the period of ocean growout of Tridacna gigas using Australian data obtained from trials at Orpheus Island Marine Research Station. The standard ocean 'farm is assumed each year to place 100,000 seed clams of approximately one year of age. The optimal length of time to hold them is estimated to be 10 years when they are sold for their meat at $5 per kg at the farm gate. This yields an estimated internal rate of return of 19.5% and maximises the net present value or capitalised value of the farm. The method used to estimate the optimal rotation or harvest cycle for giant clams is similar to that used in the forestry economics literature for determining forest rotation cycles. 000206543 650__ $$aDemand and Price Analysis 000206543 650__ $$aLivestock Production/Industries 000206543 6531_ $$aTridacna gigas 000206543 6531_ $$agiant clam farming 000206543 6531_ $$aCBA 000206543 6531_ $$aInternal rate of return 000206543 700__ $$aTisdell, Clem 000206543 700__ $$aTacconi, Luca 000206543 700__ $$aBarker, J.R. 000206543 700__ $$aLucas, J.S. 000206543 8564_ $$940f09d48-af89-43aa-8b0b-c439f960d0b9$$s146626$$uhttps://ageconsearch.umn.edu/record/206543/files/WPGCM22.pdf 000206543 887__ $$ahttp://purl.umn.edu/206543 000206543 909CO $$ooai:ageconsearch.umn.edu:206543$$pGLOBAL_SET 000206543 912__ $$nSubmitted by Clem Tisdell (c.tisdell@economics.uq.edu.au) on 2015-06-29 No. of bitstreams: 1 WPGCM22.pdf: 146626 bytes, checksum: a6def2a0939eb77d6636bfbb12a02a0c (MD5) 000206543 912__ $$nMade available in DSpace on 2015-06-29 (GMT). No. of bitstreams: 1 WPGCM22.pdf: 146626 bytes, checksum: a6def2a0939eb77d6636bfbb12a02a0c (MD5) Previous issue date: 1991-04 000206543 913__ $$aLicense granted by Clem Tisdell (c.tisdell@economics.uq.edu.au) on 2015-06-28T23:58:30Z (GMT): <center> <h2> Deposit Agreement </h2> </center> I represent that I am the creator of the digital material identified herein (&ldquo;Work&rdquo;). I represent that the work is original and that I either own all rights of copyright or have the right to deposit the copy in a digital archive such as AgEcon Search. I represent that in regard to any non-original material included in the Work I have secured written permission of the copyright owner (s) for this use or believe this use is allowed by law. I further represent that I have included all appropriate credits and attributions. I hereby grant the Regents of the University of Minnesota (&ldquo;University&rdquo;), through AgEcon Search, a non-exclusive right to access, reproduce, and distribute the Work, in whole or in part, for the purposes of security, preservation, and perpetual access. I grant the University a limited, non-exclusive right to make derivative works for the purpose of migrating the Work to other media or formats in order to preserve access to the Work. I do not transfer or intend to transfer any right of copyright or other intellectual property to the University. If the Deposit Agreement is executed by the Author�s Representative, the Representative shall separately execute the following representation: I represent that I am authorized by the Author to execute this Deposit Agreement on behalf of the Author. 000206543 980__ $$a1743 000206543 982__ $$gUniversity of Queensland>School of Economics> Research Reports and Papers in Economics of Giant Clam Mariculture