Chondrostoma kubanicum Berg, 1914
Kuban's nase
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Family:  Leuciscidae (Minnows), subfamily: Leuciscinae
Max. size:  35 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater
Distribution:  Europe: Kuban drainage, Russia.
Diagnosis:  The only species of the genus in Kuban drainage which can be diagnosed from other congeners in Black and Caspian Sea basins by the following characters: straight mouth, lower lip with thick cornified sheath; 54-62 scales on lateral line; dorsal fin usually with 8½ branched rays; anal fin usually with 10½ branched rays; eye small, diameter 44-52% of interorbital distance; body laterally compressed, width at dorsal fin origin 45-54% of depth; and body lacking dark lateral stripe (Ref. 59043).
Biology:  Inhabits piedmont and montane rivers with strong current and gravel bottom. Occurs most of the year in the middle or upper stretches of rivers and moves downstream in winter to lower stretches or larger tributaries. Feeds predominantly on detritus, but also takes periphyton, benthic invertebrates, especially during first year of life. Spawns at sites with gravel or hard sand, with rapids and swift current (up to 1.5 m/s), 0.2-1.0 m deep, in clean water with high oxygen concentrations. Very sensitive to water quality, especially turbidity (Ref. 59043).
IUCN Red List Status: Least Concern (LC); Date assessed: 01 January 2008 Ref. (124695)
Threat to humans:  harmless
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