No detailed citation.
Species | Development state | Trait | Primary Data | Secondary Data |
Abramis brama | Female | Length at sexual maturity | 32.9 ± 0.39 mean with n =122 [Vary from 25.0-43.0] | 32.9 cm |
Abramis brama | Male | Male sexual dimorphism | Territorial males are brown-yellow in colouration with tubercules | Absent |
Abramis brama | Spawning conditions | Spawning depth | Water depth ranges between 25 and 50 cm | 0.375 m |
Abramis brama | Spawning conditions | Spawning substrate | Phytophilous : roots of alder, willow trees and aquatic plants | Phytophils |
Abramis brama | Spawning conditions | Spawning site preparation | No nest, but some males are territorial and very aggressive and others are non-territorial | Open water/substratum scatter |
Abramis brama | Spawning conditions | Nycthemeral period of oviposition | During the day but decrease slighy during the afternoon | Day |
Abramis brama | Spawning conditions | Mating system | May be considered polygamous : each male can mate successively with several females, and each female can mate simultaneously and successively with several males [One female followed by two to eight males] | Polyandry |
Abramis brama | Spawning conditions | Spawning release | Several batches of eggs are released and fertilized by different males | Multiple |