Coregonus wartmanni (Bloch, 1784)
Blaufelchen
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Family:  Salmonidae (Salmonids), subfamily: Coregoninae
Max. size:  50 cm TL (male/unsexed)
Environment:  pelagic; depth range - 0 m, non-migratory
Distribution:  Europe: Lake Constance (Switzerland, Germany and Austria).
Diagnosis:   
Biology:  Lacustrine, pelagic, usually at 0-40 m during summer. Feeds on plankton and insects; preys on juvenile Perca fluviatilis in summer. Spawns at surface over deep water, off-shore. Spawns for the first time at 2-3 years and in first half of December, when temperature falls below 7?C. Males aggregate at surface and females ready to spawn come from deeper water to join these aggregations. Eggs sink to bottom and hatch in March. Larvae swim to surface and start to feed after 8 days (Ref. 59043). Also Ref. 13813, 47057.
IUCN Red List Status: Least Concern (LC); Date assessed: 01 January 2008 Ref. (119314)
Threat to humans:  harmless
Country info:   
 

Entered by: Torres, Armi G. - 24.07.98
Modified by: Casal, Christine Marie V. - 16.03.16
Checked by: Froese, Rainer - 23.05.03

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