The river Nemunas basin, catchment area The tributaries of the river Nemunas Alove Alsia Baltoji Ancia Dubysa Gauja Gege Jiesia Jura Merkys Minija Mituva Nemunas Neris Nevezis Nieda Perseke Ratnycia Seira Sesupe Streva Sysa Verkne Vidauja Vilka Zapse