...Laetitia Serrano; Gaëlle Blanvillain; Daniel Soyez; Guy Charmantier; Evelyse Grousset; Fabien Aujoulat; Céline Spanings-Pierrot SUMMARY This study investigates the involvement of eyestalk neuroendocrine factors on osmoregulation in the crayfish Astacus leptodactylus maintained in freshwater...

... during the fight. We were also interested in the message conveyed by urine signals. Does urine contain information about the identity of the signaller? Does it reveal the aggressive motivation of the signaller? Crayfish aggressive interactions were studied in size-matched male Astacus leptodactylus...

...Paolo Domenici; Josef Schmitz; Marc Jamon ABSTRACT Curve walking in two species of crayfish, Procambarus clarkii and Astacus leptodactylus , was investigated to test whether the mechanism underlying curve walking is the synchronous action of a centrally pre-programmed leg tripod or whether...

...Holk Cruse; Manuel G. Silva Saavedra ABSTRACT Curve walking of crayfish Astacus leptodactylus was investigated by exploiting their optomotor response. The animal walked while spatially fixed on a motor-driven treadmill and turning behaviour was induced by an optical stimulus, a pattern consisting...