For many animals, shelters are valuable source to hide from predators. To know acquisition of adequate shelter is important to understand social interactions of animals. Preferences for types of shelter used by the Marmorkrebs (marbled crayfish) were analysed behaviourally. Individual crayfish were presented with a choice between two PVC pipes with four different internal diameters (XL, L, M and S). The time spent in each shelter and the number of times crayfish entered each shelter were measured. Preference ranks of crayfish were XL = L = or > M > S. Our experiments strongly suggested that crayfish chose shelters based first on the diameter of the entrance, and then based on the length of the shelter. Crayfish recognised adequate shelters by visual cues under light conditions and utilised tactile cues from their antennae under dark conditions.
Cover-seeking behavior and shelter use by juvenile and adult crayfish, Procambarus clarkii: potential importance in species invasion. —
J. Crustacean Biol.19:
Marble crayfish as a new model organism and a new threat to native crayfish conservation. — In:
Freshwater crayfish: a global overview (
KawaiT.FaulkesZ.ScholtzG., eds). CRC Press, Boca Raton, FL, p.
Shelter competition in juvenile red swamp crayfish (Procambarus clarkii): the influences of sex differences, relative size, and prior residence. —
Shelter competition between resident male red swamp crayfish Procambarus clarkii (Girard) and conspecific intruders varying by sex and reproductive status. —
Mar. Freshw. Behav. Physiol.38:
Assessment of five shelter types in the production of redclaw crayfish Cherax quadricarinatus (Decapoda: Parastacidae) under earthen pond conditions. —
J. World Aquacult. Soc.32:
The marbled crayfish as a paradigm for saltational speciation by autopolyploidy and parthenogenesis in animals. —
Two types of orienting behaviour during agonistic encounters in the crayfish Procambarus clarkii (Decapoda: Cambaridae). —
J. Crustacean Biol.36: