Journal article
Production Cost of the Farm-Ready Pearl Oyster Pteria penguin Used for Mabé Pearl Production in the Kingdom of Tonga
Journal of Shellfish Research, Vol.39(3), pp.671-677
2020
Abstract
Mab´eMab´e pearl (half-pearl) culture provides rural livelihood opportunities in the South Pacific and is a low-tech alternative to capital and labor-intensive round pearl culture. The Kingdom of Tonga is unique among the pearl-producing countries of the South Pacific in focusing on mab´emab´e pearl culture using the winged pearl oyster Pteria penguin. The Tongan mab´emab´e pearl sector is developing rapidly and stimulated by routine supply of spat to mab´emab´e pearl farmers, from the government hatchery at no cost. It is likely that some level of cost recovery for spat supply will be considered as the sector strengthens, but information on hatchery production costs is limited. This study determined the costs of operating the government pearl oyster hatchery in Tonga and developed an economic model to assess the production cost of juvenile oysters. Modeling was based on a single annual hatchery run generating 6,600 oysters from the ocean-based nursery for delivery to commercial pearl farms. Estimated capital cost was USD 19,079 (excluding government buildings and chattels), and the major production costs were hatchery labor (37%), capital purchase and replacement (20%), and nursery labor (10%). Total annual costs for the pearl oyster hatchery were USD 13,263, equating to a cost of USD 2.01 per oyster supplied to farmers in Tonga. Given significant annual profits of around USD 9,338 that can be generated from 100 harvested oysters, there is justification for cost recovery. Results will be valuable to key stakeholders and have regional relevance for hatchery production of high-value aquaculture commodities.
Details
- Title
- Production Cost of the Farm-Ready Pearl Oyster Pteria penguin Used for Mabé Pearl Production in the Kingdom of Tonga
- Authors
- William Johnston (Corresponding Author) - University of the Sunshine Coast, Queensland, School of Science and Engineering - LegacyMax Wingfield (Author) - University of the Sunshine Coast, Queensland, School of Science and Engineering - LegacySophie Gordon (Author) - University of the Sunshine Coast, Queensland, School of Science and Engineering - LegacyTu'ikolongahau Halafihi (Author) - Ministry of Fisheries, TongaPaul Southgate (Author) - University of the Sunshine Coast, Queensland, School of Science and Engineering - Legacy
- Publication details
- Journal of Shellfish Research, Vol.39(3), pp.671-677
- Publisher
- National Shellfisheries Association, Inc.
- DOI
- 10.2983/035.039.0312
- ISSN
- 1943-6319
- Organisation Unit
- Australian Centre for Pacific Islands Research; School of Science and Engineering - Legacy; School of Science, Technology and Engineering; University of the Sunshine Coast, Queensland
- Language
- English
- Record Identifier
- 99500608502621
- Output Type
- Journal article
Metrics
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- International collaboration
- Web Of Science research areas
- Fisheries
- Marine & Freshwater Biology
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Source: InCites