Northern whitefin gudgeon
📖 Overview
Inhabits bottom of moderately flowing lowland rivers and prefers sand bottom. A nocturnal species feeding on insect larvae and other larger benthic invertebrates .
🔬 Taxonomy
🐟 Physical Description
Diagnosed from its congeners in Baltic and Black Sea basins by the following characters: longitudinal epithelial crests on predorsal scales; scales on lateral line 39-42 + 2; scale rows around caudal peduncle 14-16, rarely 12; dorsal fin with 7½ branched rays; anal fin with 6½ branched rays; dorsal behind middle of body, predorsal length greater than postdorsal length; anus closer to pelvic origin than to anal origin; snout longer than or equal to postorbital distance .: elongated.
🌀 Behaviour
Behavioural data for Northern whitefin gudgeon is currently being reviewed.
🦐 Diet
🥚 Reproduction
Both sexes move to surface or open water to spawn . Females spawn up to 4 times during a season at about two-week intervals .
🌍 Habitat & Distribution
Freshwater; demersal. Temperate South Bug and Dniepr drainages), southern Baltic basin (Odra, Vistula), southern North Sea basin (Elbe, Rhine).
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🦠 Common Diseases
The following diseases are known to affect Northern whitefin gudgeon.
🔍 Similar Species
👥 Community & Contribute
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