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Distribution maps of the main species density of living organisms: A. G. crassa rossensis (G. cras. rossens.); B. C. ungerianus. C. B. pseudoplicata; D. C. jeffreysii; E. P. mediterranensis. F. B. ordinaria. Legend: Cartola—Pontal da Cartola; Galega–Pontal da Galega; Fur–Furadouro; VR—Vouga River. Adapted from Martins et al. [58].
