7/13/2023 0 Comments Oyster spat pricesThe Guasave farm produced the highest profits (US$8,053.71 diploids, US$8,182.19 triploids). After the first production cycle, more than 80% of production costs represent the purchase of cultivation equipment and salaries contributed with around 9%. Survival differed significantly from 98.6% for the Guasave/triploids to 76.7% for the Ahome/diploids. The highest growth rates for shell length (8.01 mm month -1) and body weight (9.08 g month -1) were obtained for the Ahome/triploid group. Growth rate and survival of oysters were compared in long-line cultivation and were mostly affected by water parameters rather than ploidy or their interaction. Diploid and triploid Crassostrea gigas oysters were cultivated at three farms (Guasave, Navolato and Ahome) in Sinaloa, Mexico, to evaluate their growth and economic performances. Ponce-Palafox 3ġ Instituto Politécnico Nacional, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional Unidad Sinaloa, Instituto Politécnico Nacional, Guasave, Sinaloa, MéxicoĢ Instituto Politécnico Nacional, Centro Interdisciplinario de Investigación y Estudios sobre Medio Ambiente y Desarrollo, Ciudad de México, D.F., Méxicoģ Universidad Autónoma de Nayarit, Escuela Nacional de Ingeniería Pesquera, Laboratorio de Bioingeniería Costera, Centro Multidisciplinario de Bahía de Banderas, Nayarit, MéxicoĤ Universidad de Occidente, Unidad Guasave, Sinaloa, MéxicoĬorresponding author: Manuel García-Ulloa ( editor: Cesar LodeirosĪBSTRACT. The models developed in this study provide valuable new information for prospective pearl oyster spat and mabé pearl farming community groups, donors, funding bodies and other stakeholders, and provide a valuable extension tool supporting further development of the pearl sector in Fiji and the broader Indo-Pacific region.Growth and economic performance of diploid and triploid Pacific oysters Crassostrea gigas cultivated in three lagoons of the Gulf of Californiaīrenda Paulina Villanueva-Fonseca 1, 4, Andrés Martín Góngora-Gómez 1, Norma Patricia Muñoz-Sevilla 2, Ana Laura Domínguez-Orozco 1, Juan Antonio Hernández-Sepúlveda 1, Manuel García-Ulloa 1 & Jesús T. Incorporating production and price risk into the model reduced the expected NPV of the mabé pearl farm to $297,507. The MIRR and benefit-cost ratio of the modelled mabé pearl farm were 22.64% and 7.24, respectively, with a payback period of 3 years. Annual production of 5400 mabé pearls generated an NPV of $491,864. penguin oysters with an estimated capital cost of $7319. The downstream mabé pearl farm modelled in this study comprised two 100-m longlines supporting 2000 implanted Pt. The MIRR generated was 12.24%, with a benefit-cost ratio was 1.52, and a payback period of 4 years. margaritifera pearl oysters (sold to round pearl culture operations) with estimated NPV of $10,439. The spat collection operation produced 2332 saleable P. The spat collection farm modelled in this study comprised four 100-m longlines supporting 1240 commercial spat collectors, with an estimated capital cost of $1245 (all figures in USD). margaritifera spat collection operations, for mabé pearl production. This study determined the potential profitability of (1) community-based pearl oyster spat collection operations targeting Pinctada margaritifera, and the subsequent sale of pearl oysters to round pearl farms and (2) the use of Pteria penguin, collected incidentally from P. 734505 ISSN: 0044-8486 Subject: Pinctada margaritifera, Pteria penguin, capital, collectors, cost benefit analysis, farms, models, oyster culture, oysters, pearls, prices, profitability, risk, Polynesia Abstract: Cultured pearl production, and associated activities, are of crucial social and economic importance to remote coastal communities in Polynesia and the western Pacific. Southgate Source: Aquaculture 2020 v.514 pp. Economic assessment of community-based pearl oyster spat collection and mabé pearl production in the western Pacific Author: Bill Johnston, Pranesh Kishore, Gary Bingnald Vuibeqa, Damian Hine, Paul C.
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