Belaud et al, 2001



Citation


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

Associated characteristics


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