水生生物学报2026，Vol.50Issue(5)：39-48,10.DOI:10.3724/1000-3207.2025.2025.0367
社会隔离和生态场景对鲤幼鱼群体行为的影响
SOCIAL ISOLATION AND CONTEXTS ON THE COLLECTIVE BEHAVIOUR OF COMMON CARP(CYPRINUS CARPIO)
摘要
Abstract
Group living brings numerous ecological benefits and costs,and changes in social status(such as from group living to social isolation)have a profound effect on the morphology,physiology,behaviour,and life history characteris-tics of social animals.Refuges are intricate and variable,however,most earlier studies on animal group behavior focused on a single ecological context.Therefore,to examine the effect of social isolation and ecological contexts on the group behaviour of cyprinid fish,we utilized common carp(Cyprinus carpio)as the experimental subjects,setting up two social status treatment groups(group-rearing,5 fish maintained together;isolation group,single fish isolated alone).After 28 days,we measured the collective behavior of each treatment across three contexts:open water,food presence,and food+refuge.We found that,social isolation had no significant effect on the individual behaviour of common carp,but in the food context,both two groups had the fastest individual swimming speed,and in the food+refuge context,the synchronization of speed synchrony was the lowest.Social isolation and contexts have an impact on the collective behaviour and structure.The group speed and the percentage of time spent moving in group-rearing increased with context complexity.The isolation group exhibited a decrease in polarization and in both the open water and food+refuge displayed decreased group coordination and cohesion.After 28 days,foraging efficiency increased significantly in both treatments compared to day 0,while time spent in refuge decreased significantly.Group size in the isolation group was also significantly higher at day 28 than that at day 0.The study shows that social isola-tion reduces the activity and group coordination in common carp,and that increasingly complex ecological contexts improve the movement ability at the expense of group coordination.关键词
社会隔离/生态场景/群体行为/鲤幼鱼Key words
Social isolation/Ecological context/Collective behaviour/Common carp分类
农业科技引用本文复制引用
杨清,毕瑾秋,龚雅星,王春花,付世建,曾令清..社会隔离和生态场景对鲤幼鱼群体行为的影响[J].水生生物学报,2026,50(5):39-48,10.基金项目
国家自然科学基金(32571755)资助Supported by the National Natural Science Foundation of China(32571755) （32571755）
