Departamento de Genética, Instituto de Ciências Biológicas, Laboratório de Evolução e Genética Animal, Universidade Federal do Amazonas, Manaus, Brazil.
Programa de Pós-Graduação em Ciências Pesqueiras nos Trópicos, Universidade Federal do Amazonas, Manaus, Brazil.
J Fish Biol. 2019 Aug;95(2):411-427. doi: 10.1111/jfb.13990. Epub 2019 May 22.
Piaractus orinoquensis, a new species of serrasalmid fish, is described from the Orinoco River basin. The new species differs from congeners by having a slenderer body, relatively smaller head and snout, more compressed mid-body, fewer scales above and below the lateral line and diagnostic molecular characters in the coI mitochondrial gene region. We also provide a re-description of Piaractus brachypomus, restricting its geographic distribution to the Amazon River basin. Both species are economically important in their respective basins and need to be independently managed as distinct species.
奥里诺科河多鳍鱼，一种新的锯脂鲤鱼类，描述自奥里诺科河流域。新种与同属种的区别在于体型更纤细，头部和吻部相对较小，身体中段更压缩，侧线上下鳞片较少，以及线粒体 coI 基因区域的鉴别分子特征。我们还重新描述了短盖巨脂鲤，将其地理分布限制在亚马逊河流域。这两个物种在各自的流域都具有重要的经济价值，需要作为不同的物种进行独立管理。
