This study reports the Length‐Weight Relationships (LWR) for 10 freshwater fish species sampled in the Atlantic Rainforest, Southern Brazil. Sampling was conducted between 2016 and 2017, in nine streams, using electrofishing. Collected fishes were fixed in formalin, and thus some shrinking was unavoidable. The values of parameter b of the LWR (W = aL^b) ranged between 2.5 and 3.5. We report for the first time the LWR for seven species: Geophagus iporanguensis, Isbrueckerichthys duseni, Hypostomus interruptus, Kronichthys lacerta, Chasmocranu lopezi, Astyanax lacustris e Neoplecostomus ribeirensis. We highlight the importance of the LWR data in supporting further studies on fish stocks and environment in the Atlantic Rainforest, thereby contributing to the database needed to develop fisheries management and maintenance of ecosystem services.

中文翻译：

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巴西巴拉那州大西洋雨林溪流中淡水鱼的长度-重量关系

这项研究报告了在巴西南部大西洋雨林中采样的10种淡水鱼物种的长度-重量关系（LWR）。在2016年至2017年之间使用电钓鱼以9个流进行了采样。将收集的鱼固定在福尔马林中，因此不可避免地会出现一些缩水。LWR的参数b的值（W  =  aL ^b）在2.5到3.5之间。我们首次报告了七个物种的轻水堆：Geophagus iporanguensis，Isbrueckerichthys duseni，Hypostomus interruptus，Kronichthys lacerta，Chasmocranu lopezi，Astyanax lacustris e Neoplecostomus ribeirensis。我们强调LWR数据在支持进一步研究大西洋雨林鱼类种群和环境的重要性，从而有助于发展渔业管理和维护生态系统服务所需的数据库。