Divisão de Pesquisas, Neotropical Consultoria Ambiental, Rua Cesário Rosseto, Passo Fundo, Brazil.
Departamento de Zoologia, Universidade Federal do Rio Grande do Sul (UFRGS), Programa de Pós-Graduação em Biologia Animal, Porto Alegre, Brazil.
J Fish Biol. 2019 Aug;95(2):633-637. doi: 10.1111/jfb.13978. Epub 2019 May 10.
The genetic analysis of Brachyplatystoma platynemum individuals sampled from the lower Madeira River reinforces the existence of two structured populations in the Amazon Basin (Madeira and Amazon populations). However, the recapture of an individual from the Amazon population in the Solimões River, which was telemetry-tagged in the Madeira River after the damming, indicates that fish from the Amazon population move between the two river systems. This has not yet been observed, however, in the Madeira River population, which is currently divided and isolated in the lower and upper Madeira River by the construction of two dams.
从马德拉河下游采集的巨骨舌鱼个体的遗传分析结果表明，在亚马逊流域（马德拉河和亚马逊河种群）存在两个具有结构差异的种群。然而，在马德拉河筑坝后对标记放流于该河的个体进行追踪监测时，在索利蒙伊斯河重新捕获到一只来自亚马逊河种群的个体，这表明来自亚马逊河种群的巨骨舌鱼在这两个水系之间有洄游行为。然而，这种洄游行为尚未在马德拉河种群中观察到，因为目前两个大坝的建设将马德拉河种群分割并隔离在中下游。
