Wiktionary
vobla
n. The Caspian roach (''Rutilus caspicus''), formerly considered a subspecies of the (vern: common roach).
Wikipedia
Vobla
The vobla (Rutilus caspicus), also termed the Caspian roach, is a species of cyprinid fish inhabiting the Caspian Sea and inflowing rivers. It is closely related to the common roach (R. rutilus) and often considered its subspecies, R. r. caspicus.
Salt-dried vobla is a common Russian meal or snack that goes well with beer. It is popular in many Russian households and beer restaurants.