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Fig. 2 | BMC Evolutionary Biology

Fig. 2

From: Genetic and phenotypic variation along an ecological gradient in lake trout Salvelinus namaycush

Fig. 2

Illustrations of four lake trout ecomorphs from Isle Royale, Lake Superior. Photographs of lean (a), humper (b), siscowet (c) and redfin (d) are shown. The vertical lines provide a sense for relative sizes and positions of key anatomical features, such as head size and fin insertion and lengths among the ecomorphs. Note that the four fish have been size-scaled to the same focal length

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