Figure 1. – Zingel asper specimens. A in Reproduction of Zingel asper (Linnaeus, 1758) in controlled conditions: an assessment of the experiences realized since 2005 at the Besançon Natural History Museum

Figure 1. – Zingel asper specimens. A: Lateral view Zingel asper, male, 2 year old specimen born in 2008 in Besançon Natural History Museum; B: Lateral view, 4 year old female, size of 21 cm TL (captive born 2008); C: Dorsal photo of a Z. asper group, each fish can be individually identified thanks to the black stripes on their bodies (1-6).