Lamproie de rivière

Slack 56 obs. L'Arques 25 obs. La Durdent 24 obs. La Grande Leyre 13 obs. La Saane 12 obs. L'Epte 9 obs. La See 9 obs. L'Aure 8 obs. La Lys 7 obs. La Livenne 6 obs.