Invasive species are continuously introduced in several ecosystems from human activities. Aquaculture activities are noteworthy among the many different species introduction vectors currently in place, generating a pattern of constant, frequent or massive release of propagules into aquatic ecosystems, increasing species establishment success rates. Reported cases in marine or brackish ecosystems, however, are still scarce. As aquaculture constantly generate propagules with the ability to employ these facilities as corridors to further spread to interconnected brackish and freshwater ecosystems, colonising high salinity systems, this study aimed to compile evidence of Tilapiines detected in Brazilian coastal marine and brackish ecosystems. Nineteen records were obtained, with the presence of this invader suggested as higher following rainfall seasons. The widespread distribution of Tilapiines is relatively well-known in Brazilian freshwater ecosystems but, up to now, its potential to use brackish and marine ecosystems as ecological corridors has been described only experimentally. Our findings highlight the potential for a typically freshwater invader to spread through marine ecosystems, raising concerns regarding the licensing of aquaculture projects within rivers and estuaries, as tilapia may significantly affect native Brazilian biota.

由于人类活动，入侵物种不断被引入多个生态系统。在目前存在的许多不同物种引入媒介中，水产养殖活动值得注意，产生了一种持续、频繁或大量地将繁殖体释放到水生生态系统中的模式，提高了物种建立的成功率。然而，海洋或咸水生态系统中报告的病例仍然很少。由于水产养殖不断产生繁殖体，能够利用这些设施作为走廊，进一步传播到相互关联的咸水和淡水生态系统，在高盐度系统中定居，本研究旨在收集在巴西沿海海洋和咸水生态系统中发现的罗非鱼的证据。获得了 19 条记录，这种入侵者的存在表明降雨季节后的记录数量更高。罗非鱼在巴西淡水生态系统中的广泛分布是众所周知的，但迄今为止，其利用咸水和海洋生态系统作为生态走廊的潜力仅在实验上得到描述。我们的研究结果强调了典型的淡水入侵者在海洋生态系统中传播的可能性，引起了对河流和河口内水产养殖项目许可的担忧，因为罗非鱼可能会严重影响巴西本土生物群。