Main Ref. | Kottelat, M. and J. Freyhof, 2007 |
Mode | dioecism |
Fertilization | external |
Mating type | |
Spawning frequency | once in a lifetime |
Spawning aggregation | Ref. |
Batch spawner | Ref. |
Reproductive guild | |
Parental Care | |
Description of life cycle and mating behavior | Most juveniles migrate to river mouth in first summer and remain at sea until they mature. Males migrate upriver at 3-4 years, females at 4-5. They start entering rivers when temperatures reach 14-18°C, mainly in May to spawn when temperatures rises above 20°C. After spawning, spent individuals migrate back to sea, but many die before they do (Ref. 59043). |
Search for more references on reproduction | Scirus |