Aller River
Largest tributaries
Perciformes - Perches
Salmoniformes - Salmons and Trouts
Esociformes - Pikes
Cypriniformes - Carps
Anguilliformes - Eels and morays
Perciformes - Perches
Salmoniformes - Salmons and Trouts
Esociformes - Pikes
Cypriniformes - Carps
Anguilliformes - Eels and morays
The Aller is a 215-kilometre-long river in the states of Saxony-Anhalt and Lower Saxony in Germany. It is a right-hand, and hence eastern, tributary of the Weser and is also its largest tributary.