Figure 2: Variation in vertebral number among subpopulations and life-stages.
From: Causes and consequences of intra-specific variation in vertebral number
Frequency distribution (%) of vertebral number in sympatric subpopulations of Esox lucius pike and throughout different life-stages (adults (blue), wild-caught juveniles (red) and common-garden reared (in a constant temperature of 14 °C) juveniles (yellow)). Darker coloured boxes illustrate the most frequent vertebral number in different subpopulations and life-stages. For a key to abbreviations of subpopulations (L, O, A, T, D, and I), see Table 1.
