Russian Sturgeon Acipenser gueldenstaedtii

Russian Sturgeon
Russian Sturgeon
The Russian Sturgeon, also called the Danube Sturgeon, is native to the Black Sea and the Caspian Sea, migrating into the feeder rivers of those seas to spawn.
Russian Sturgeon
Russian Sturgeon
Russian Sturgeon
It has a grey-brown topside with characteristic small, pale, dorsal humps and a white underside. It can grow to 2.3 metres long and weigh some 115kg. It eats crustaceans, molluscs and small fish.
Russian Sturgeon Barbels, mouth and gills
Russian Sturgeon Poor photo but interesting face markings
Danube Sturgeon Danube Sturgeon (same species)
It is critically endangered due to overfishing (including illegal fishing for roe/caviar), pollution and habitat loss.