Inhabits open sandy and muddy bottom in backwaters and large rivers with moderate current. Undertake migration from river mainstreams to backwaters to spawn. Nocturnal, feeding on small invertebrates .
Dorsal spines (total): 14 - 16. Distinguished uniquely from its congeners by its body depth, 27-30% SL. Differs further from other species of the genus by the combination of the following characters: flank grey with a few large, irregular, dark blotches; and dorsal fin with 14-16 spines .: fusiform / normal.
Behavioural data for Danube ruffe is currently being reviewed.
Diet information for Danube ruffe is currently being compiled.
Reproduction data for Danube ruffe is currently being compiled.
Freshwater; benthopelagic; pH range: 6.8 - 7.8; dH range: 10 - 20. Temperate; 10°C - 20°C
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