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Caill-milly, Nathalie; Bru, Noelle; Mahe, Kelig; Borie, Catherine; D'Amico, Franck. |
While gradual allometric changes of shells are intrinsically driven by genotype, morphometrical shifts can also be modulated by local environmental conditions. Consequently the common use of a unique dimension (usually length) to assess bivalves’ growth may mask phenotypic differences in valve shape among populations. A morphometric exhaustive study was conducted on Manila clam, Ruditapes philippinarum, by acquiring data in the French Arcachon Bay (intrasite phenotypic variability) and by comparing with other sites in the literature (intersite phenotypic variability). 2070 shells were subsampled, weighted, and automatically measured using TNPC software. Some ratios’ values indicate a relatively round and globular shape shell in comparison with other sites... |
Tipo: Text |
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Ano: 2012 |
URL: https://archimer.ifremer.fr/doc/00116/22684/20420.pdf |
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