Author: (Linnaeus, 1758)
FBname: Eurasian minnow
Comments: Gregarious (Ref. 2196).  Found in a wide range of cold and well oxygenated habitats from small, fast-flowing streams to large Nordic lowland rivers and from small upland lakes to large oligotrophic lakes.  Usually occurs in association with salmonid fishes (Ref. 59043).  Feeds on algae, plant debris (in rivers), mollusks, crustaceans and insects (Ref. 30578).  Spawns over clean gravel areas in flowing water or on wave-washed shores of lakes.  Overwinters in coarse substrate or in deep pools with low current (Ref. 59043).  Migrates upstream for spawning in shallow gravel areas.  Important laboratory fish, for research on sensory organs of fishes.  Mean maximum age is 6 years (Ref. 41616).  Locally threatened due to pollution and excessive stocking of species of <i>Salmo</i> (Ref. 59043).