The Meeting of Waters, a possible shelter of evolutionary significant units for Amazonian fish

详细信息    查看全文

• 作者：Alba Ardura (1)
  Vanessa Gomes (2)
  Ana R. Linde (2)
  Josino C. Moreira (2)
  Jose L. Horreo (1)
  Eva Garcia-Vazquez (1)
  
• 关键词：Amazon river ; Meeting of Waters ; Mitochondrial DNA ; Prochilodus nigricans ; Colossoma macropomum ; Population structure
• 刊名：Conservation Genetics
• 出版年：2013
• 出版时间：December 2013
• 年：2013
• 卷：14
• 期：6
• 页码：1185-1192
• 全文大小：
• 作者单位：Alba Ardura (1)
  Vanessa Gomes (2)
  Ana R. Linde (2)
  Josino C. Moreira (2)
  Jose L. Horreo (1)
  Eva Garcia-Vazquez (1)
  
  1. Departamento de Biologia Funcional, Universidad de Oviedo, C/Julian Claveria s/n, 33006, Oviedo, Spain
  2. Laboratorio de Toxicologia, Escola Nacional de Sae Plica, Fundaao Oswaldo Cruz, Rio de Janeiro, Brazil
  
• ISSN：1572-9737

文摘

Identification of priority conservation areas is crucial for safeguarding freshwater ecosystems. Occurrence of unique populations and/or evolutionary significant units for key species is one of the most frequent reasons for protecting a region or location. In this study we have studied two of the most important fisheries resources of the Amazon basin, Curimata and Tambaqui, from different areas, in order to identify common zones of special diversity. Employing the Barcoding cytochrome oxidase I gene as a genetic tool, we have detected a clear differentiation of the populations inhabiting the Meeting of Waters and the rest of the basin for both species. This area corresponds to the confluence of the Solimes and the Negro rivers, of different physicochemical water characteristics, at the Brazilian city of Manaus in central Amazonas. The Meeting of Waters area (near Manaus) could be recommended as a potential area subject of special management, given its apparent role as a shelter for evolutionary significant units.