体色和社会熟悉度对慈鲷选择集群的影响OA北大核心CSTPCD

In order to study the effects of body color and social familiarity on the shoal selection in cichlids,Sciaenochromis fryeri with a blue body color,was selected as the study object.White Hindongo socolofi and yellow Labidochromis caeruleus were chosen as stimuli to test whether experimental fish displayed a preference for specific color phenotypes,considering the controlled social familiarity of the shoal.Additionally,the study aimed to determine if experimental fish exhibited a preference for associating with shoal stimuli possessing a preferred color phenotype but were unfamiliar to the shoal.The results showed that when there was no difference in the social familiarity of shoal stimuli,both individuals and groups demonstrated a preference for associating with shoals of the preferred color pheno-type.However,when stimulating fish with different social familiarity,individual S.fryeri showed an association with the more socially familiar shoal,while group experimental fish displayed a preference for the shoal with the preferred color shoal phenotype.The study show that body color exerts a greater influence on shoal selection than social familia-rity.Body color emerges as a potentially significant shoal cue for cichlids,providing a foundation for exploring the ecological effects of body color(such as predator-prey interactions)within fish shoals.