Banc de perches (Perca fluviatilis) dans le Gour de Tazenat (Puy-de-Dôme (63), France). Tags: banc; perche; Perca fluviatilis; poisson; Gour de Tazenat; Auvergne; France; eau douce; milieu naturel; lac; glauque; rocher; pierre; vase; turquoise; plusieurs; rivière; étang; prise de vue sous-marine; shoal; european perch; perches; fish; wild; Nature; fresh water; freshwater; natural environment; lake; glaucous; rock; stone; mud; several; river; pond; underwater; school; schooling;