Main Ref. | Muus, B.J. and P. Dahlström, 1967 |
Mode | dioecism |
Fertilization | external |
Mating type | |
Spawning frequency | one clear seasonal peak per year |
Spawning aggregation | Ref. |
Batch spawner | Ref. |
Reproductive guild |
nonguarders open water/substratum egg scatterers |
Parental Care | none |
Description of life cycle and mating behavior | Spawns in lower reaches of streams, deeper parts of lake in sand bottoms (Ref. 682). Spawning takes place with the melting of snow (Ref. 682). Many individuals die after the spawning (Ref. 682). Migratory form generally with rapid growth, more eggs, live longer; individuals feeding on fish grow bigger (Ref. 682). ). Becomes sexually mature in 3-4 years (15-18 cm) in brackish populations, 1-2 years (8-10 cm) in freshwater. |
Search for more references on reproduction | Scirus |