Abstract：
Although marine invasions are increasingly a matter of concern, the impact of invasive species in the ecosystem and their ability to replace native taxa is still little understood. Data from 2011 to 2021 in marinas of the Southern Iberian Peninsula supported that the invasive amphipod Caprella scaura is replacing the resident Caprella equilibra over time. Six marinas where C. equilibra was abundant in 2011 and C. scaura was absent, are now dominated by C. scaura. Although this displacement is more evident in Mediterranean shores than in Atlantic coasts, it is very variable between marinas. The spreading of the invasive species in marinas of the Alboran Sea mainly occurred from 2011 to 2017, preventing C. equilibra from regaining its former distribution. The ultimate factors responsible for the displacement, such as the aggressive behaviour of C. scaura, environmental influences or physiological performance in a global warming context, should be further investigated experimentally.
摘要：
尽管海洋入侵越来越令人担忧，入侵物种对生态系统的影响及其替代本地分类群的能力仍然知之甚少。从2011年到2021年，南部伊比利亚半岛的码头的数据支持，随着时间的流逝，入侵的两栖动物Caprellascaura正在取代居民的Caprella均衡。六个码头，其中C.均衡在2011年丰富，而C.scaura缺席，现在由C.scaura主导。尽管这种流离失所在地中海沿岸比在大西洋沿岸更为明显，码头之间的差异很大。入侵物种在Alboran海码头的传播主要发生在2011年至2017年，阻止了C.平衡恢复其以前的分布。造成流离失所的最终因素，比如C.Scaura的攻击性行为,全球变暖背景下的环境影响或生理表现，应该进一步实验研究。
