Fragmentation of the Volga river over the last 60 years
The construction of several dams along spawning rivers (mainly the Volga River) significantly altered water flows and destroyed about 90 per cent of the sturgeon’s spawning grounds (UNEP/GRID-Arendal 2006).
Year: 2013
From collection: Caspian Sea - State of Environment 2011
Cartographer: GRID-Arendal