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Fig. 2 | BMC Developmental Biology

Fig. 2

From: Differences among families in craniofacial shape at early life-stages of Arctic charr (Salvelinus alpinus)

Fig. 2

Family variation in craniofacial shape in Arctic charr (Salvelinus alpinus) at hatching and first-feeding. a Principal components analysis (PCA) plot showing craniofacial shape variation across families, and (b) the correlation between PC1 and offspring size (standard length, mm), at both hatching and first feeding in Arctic charr (Salvelinus alpinus) from lake Vatnshlíðarvatn. A total of 71 landmarks were used (see Fig. 1) and resulting deformation grids, with a 2x magnification, are presented at the extremes of both axes to facilitate the interpretation of shape change. Family identity (N offspring 5–9) is represented by different symbols

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