Boldness behavior and ecological adaptability of stone moroko (Pseudorasbora parva) in open-field testing
文献类型: 外文期刊
作者: Zheng, Yuchen 1 ; Zeng, Yu 1 ; Li, Jin 1 ; Gong, Jianhan 1 ; Lv, Zhenyu 1 ;
作者机构: 1.China West Normal Univ, Coll Life Sci, Nanchong 637009, Sichuan, Peoples R China
2.Agr & Rural Affairs Bur Xichong Cty, Xichong 637200, Sichuan, Peoples R China
3.Guizhou Acad Agr Sci, Guizhou Fisheries Res Inst, Guiyang 550000, Guizhou, Peoples R China
关键词: Adaptation strategy; behavioral stages; boldness; invasive fish; stone moroko
期刊名称:ANIMAL BIOLOGY ( 影响因子:1.2; 五年影响因子:1.3 )
ISSN: 1570-7555
年卷期: 2023 年 73 卷 2 期
页码:
收录情况: SCI
摘要: Boldness is closely related to fish species' adaptative strategies and invasiveness and has become the focus of fish personality research. However, due to the lack of studies on behavioral stages, the ecological functions of certain behaviors remain unclear. To better understand the link between bold-ness and invasiveness in stone moroko (Pseudorasbora parva), an invasive Asian fish species, we exposed the fish to an open-field environment for 60 min and assessed their behavioral patterns, pro-files, and stages. The results show that the boldness behavior of stone moroko was characterized by high activity, low average velocity, and diverse swimming postures. Five behavioral stages with sig-nificant differences were revealed: outbreak, inhibition, slow swimming, exploration, and adaptation. These observations suggest that stone moroko can quickly habituate to new environments. In addition, stone moroko spent more energy on exploring the living area and less on environmental risk assess-ment, as revealed by an analysis of their energy trade-off strategy. The behavioral strategies of stone moroko may explain their extremely high environmental adaptability and ability to invade multiple environments.
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