Alburnus leobergi
Introduction '''''Alburnus leobergi''''' is a species of ray-finned fish in the genus ''Alburnus''; it is widespread in Eastern Europe in the Sea of Azov basin. A landlocked population exists in Tsimlyansk Reservoir (Don drainage). It is a benthopelagic fish, up to 40.3 cm long. Landlocked adult populations breed in reservoir tributaries and return to sea after spawning. Populations declined in early and middle 20th century due to the construction of dams. Remaining populations continue to spaw below these dams.
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