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Macro-geographical differences influenced by family-based expression on cultured pearl grade, shape and colour in the black-lip "pearl oyster" Pinctada margaritifera: a preliminary bi-local case study in French Polynesia
Provedor de dados: 5
Autores: Ky, Chin-long; Blay, Carole; Aiho, Vaite; Cabral, Philippe; Le Moullac, Gilles; Lo, Cedrik.
In French Polynesia, the aquaculture of P. margaritifera is carried out in numerous grow-out sites, located over three archipelagos (Gambier, Society and Tuamotu). To evaluate the impact of macro-geographical effects of these growing sites on pearl quality traits, five hatcheries produced families were used as homogeneous donor oysters in an experimental graft. The molluscs were then reared in two commercial locations: Tahaa island (Society) and Rangiroa atoll (Tuamotu). At harvest, eight pearl quality traits were recorded and compared: surface defects, lustre, grade, circles, shape categories, darkness level, body and secondary colour and visual colour categories. Overall inter-site comparison revealed that: 1) all traits were affected by grow-out...
Tipo: Text
Palavras-chave: Pinctada margaritifera; Cultured pearl quality; Grow-out location; Environment.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00276/38687/37186.pdf