The Amur minnow or Lagowski's minnow is a species of freshwater ray-finned fish belonging to the family Leuciscidae, which includes the daces, chubs, true minnows and related fishes. It is found from
The Lena is a river in the Russian Far East and is the easternmost river of the three great rivers of Siberia which flow into the Arctic Ocean, the others being Ob and Yenisey. The Lena River is 4,294