[Role of the photoperiod in the reproductive function of female crabs, Pachygrapsus marmoratus (Fabricus)].
To enter vitellogenesis normally the females must pass through a period marked by a weak daily lighting which, it appears, triggers a determined physiological condition. If this state is not reached, vitellogenesis is impossible; on the contrary, if this state is reached, vitellogenesis is then accelerated by a long photophase. The results are discussed.
D000818:Animals; D003386:Brachyura / Q000502:physiology*; D005260:Female; D008027:Light; D009866:Oogenesis; D010053:Ovary / Q000502:physiology; D012098:Reproduction; D012621:Seasons; D012727:Sex Characteristics
Rôle de la photopériode dans la fonction de reproduction des femelles du crabe Pachygrapsus marmoratus (Fabricius)