Main Ref. | Breder, C.M. and D.E. Rosen, 1966 |
Mode | dioecism |
Fertilization | external |
Mating type | |
Spawning frequency | one clear seasonal peak per year |
Spawning aggregation | Ref. |
Batch spawner | Yes. Ref. Kottelat, M. and J. Freyhof, 2007 |
Reproductive guild |
nonguarders open water/substratum egg scatterers |
Parental Care | none |
Description of life cycle and mating behavior | Undergo upriver migration (100 km in Dniepr) to spawn. Many populations start spawning migration in autumn ( especially semi-anadromours forms), slow down during winter and continue in spring. Males often defend spawning territories along shorelines. Eggs are sticky and eggs size increases with age of female. Frequently forms fertile hybrids with Rutilus rutilus (Ref. 59043). |
Search for more references on reproduction | Scirus |