Becker F G, De Fries L C C, Ferrer J, Bertaco V A, Luz-Agostinho K D G, Silva J F P, Cardoso A R, Lucena Z M S, Lucena C A S
Laboratório de Ecologia de Paisagem, Departamento de Ecologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
Braz J Biol. 2013 Feb;73(1):79-90. doi: 10.1590/s1519-69842013000100010.
The aquatic habitats of the Taquari-Antas river basin (in the Patos Lagoon basin, southern Brazil) are under marked environmental transformation because of river damming for hydropower production. In order to provide an information baseline on the fish fauna of the Taquari-Antas basin, we provide a comprehensive survey of fish species based on primary and secondary data. We found 5,299 valid records of fish species in the basin, representing 119 species and 519 sampling sites. There are 13 non-native species, six of which are native to other Neotropical river basins. About 24% of the total native species are still lacking a taxonomic description at the species level. Three native long-distance migratory species were recorded (Leporinus obtusidens, Prochilodus lineatus, Salminus brasiliensis), as well as two potential mid-distance migrators (Parapimelodus nigribarbis and Pimelodus pintado). Although there is only one officially endangered species in the basin (S. brasiliensis), restricted range species (21.7% of total species) should be considered in conservation efforts.
塔夸里-安塔斯河流域（位于巴西南部的帕托斯泻湖流域）的水生栖息地正经历显著的环境转变，原因是为了生产水电而修建水坝。为了提供塔夸里-安塔斯流域鱼类区系的信息基线，我们基于一手和二手数据对鱼类物种进行了全面调查。我们在该流域发现了5299条鱼类物种的有效记录，涵盖119个物种和519个采样点。有13种非本地物种，其中6种原产于其他新热带河流域。约24%的本地物种在物种层面仍缺乏分类描述。记录了三种本地远距离洄游物种（钝齿兔脂鲤、条纹鲮脂鲤、巴西鲑脂鲤），以及两种潜在的中距离洄游物种（黑须副项鲇和斑项鲇）。尽管该流域只有一种官方认定的濒危物种（巴西鲑脂鲤），但在保护工作中应考虑分布范围有限的物种（占物种总数的21.7%）。
