Skurdal, J. and Bleken, E. and Stenseth, N.C. (1985) Cannibalism in whitefish (Coregonus lavaretus). Oecologia [Oecologia], pp. 566-571
Species | Development state | Trait | Primary Data | Secondary Data |
Coregonus lavaretus | Egg | Egg Buoyancy | Demersal [Sink to the bottom] | Demersal |
Coregonus lavaretus | Egg | Egg adhesiveness | Slightly adhesive [Stick to gravel and sand] | Adhesive |
Coregonus lavaretus | Larvae | Sibling intracohort cannibalism | Whitefish to a large extent cannibalize their own eggs | Absent |
Coregonus lavaretus | Female | Age at sexual maturity | 2-6 [Sex not speicifed] | 4.0 year |
Coregonus lavaretus | Male | Age at sexual maturity | 2-6 [Sex not specified] | 4.0 years |
Coregonus lavaretus | Spawning conditions | Spawning migration period | Late autumn on their spawning run, males arrive earlier than females and occupied the spawning area for a longer period | ['October', 'November', 'December'] |
Coregonus lavaretus | Spawning conditions | Spawning season | Late October to late November | ['October', 'November'] |
Coregonus lavaretus | Spawning conditions | Spawning period duration | Males appear at the spawning area earlier than females | No data |
Coregonus lavaretus | Spawning conditions | Spawning water type | The spawning area is located below waterfall being 4.5 km upstream | No category |
Coregonus lavaretus | Spawning conditions | Spawning depth | 0.5-2 m deep | 1.25 m |
Coregonus lavaretus | Spawning conditions | Spawning substrate | Large stones with coarse gravel and send embebded | Lithophils |
Coregonus lavaretus | Spawning conditions | Spawning site preparation | Non-territorial species where males neither fight for females nor dig spawning ditches | Susbtrate chooser |
Coregonus lavaretus | Spawning conditions | Mating system | Exhibit no permanent pair-binding [Males and females swim close to each other towards the surface while ejecting eggs and milt. Males are more active than females] | No category |
Coregonus lavaretus | Spawning conditions | Parental care | Does not protect their eggs | No care |