Belaud, A. and Carette, A. and Cassou-Leins, F. and Cassou-Leins, J.J. (2001) Choix des sites de fraie par la grande alose (Alosa alosa L.) en moyenne Garonne. Bulletin francais de la peche et de la pisciculture [Bull. Fr. Peche Piscic.]., pp. 869/880
Species | Development state | Trait | Primary Data | Secondary Data |
Alosa alosa | Spawning conditions | Homing | Seem to return to their natal stream | Present |
Alosa alosa | Spawning conditions | Spawning water type | Water ccurent about 1m/s | Flowing or turbulent water |
Alosa alosa | Spawning conditions | Spawning depth | Less than 2 meters | 2.0 m |
Alosa alosa | Spawning conditions | Spawning substrate | Gravels | Lithophils |
Alosa alosa | Spawning conditions | Nycthemeral period of oviposition | Only during the night, mostly between 2 and 3h30 in the morning | Day |
Alosa alosa | Spawning conditions | Mating system | Egg spawning last 4 to 7 seconds | No category |
Alosa alosa | Spawning conditions | Parity | Most spawners die after the first migation | Semelparous |