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Presence of the walking catfish Clarias gariepinus (Burchell) (Siluriformes, Clariidae) in Minas Gerais state hydrographie basins, Brazil

Abstract

The first official occurrence of the exotic species Clarias gariepinus (Burchell, 1822) in the Rio Paraopeba (São Francisco river basin), the Rio Grande (Paraná river basin), and the Rio Doce (Doce river basin), is reported, with comments on the possible ecological consequences and on the conservation of freshwater fish biodiversity due to non-native species introductions.

Clarias gariepinus; exotic species; fish conservation; Minas Gerais; Brazil


SCIENTIFIC COMMUNICATION

Presence of the walking catfish Clarias gariepinus (Burchell) (Siluriformes, Clariidae) in Minas Gerais state hydrographie basins, Brazil

Carlos Bernardo Mascarenhas Alves* * Rua Rio de Janeiro, 2754/1402. 30160-042 Belo Horizonte, Minas Gerais, Brasil. E-mail: curimata@dedalus.lcc.ufmg.br or curimata@net.em.com.br ; Volney Vono; Fábio Vieira

Departamento de Zoologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais. Caixa Postal 486, 31270-110 Belo Horizonte, Minas Gerais, Brasil

ABSTRACT

The first official occurrence of the exotic species Clarias gariepinus (Burchell, 1822) in the Rio Paraopeba (São Francisco river basin), the Rio Grande (Paraná river basin), and the Rio Doce (Doce river basin), is reported, with comments on the possible ecological consequences and on the conservation of freshwater fish biodiversity due to non-native species introductions.

Key words:Clarias gariepinus, exotic species, fish conservation, Minas Gerais, Brazil

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ACKNOWLEDGMENTS. The authors thank Companhia Energética de Minas Gerais (CEMIG) and Internacional de Engenharia S.A. (IESA) for the opportunity of collecting fishes in the Rio Paraopeba, the Rio Grande and the Rio Doce, during environmental studies. We also thank Dr. Naércio Aquino de Menezes (MZUSP), Dr. Guy G. Teugels (Musee Royal de L'Afrique Centrale), Dr. Mauro Luís Triques (UFMG) and an anonymous referee for their useful suggestions regarding the manuscript. Finally we would like to thank Matthew Yoder and Dr. Douglas Yanega for the English version improvement.

Recebido em 19.IX.1997; aceito em 01.III.1999.

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  • *
    Rua Rio de Janeiro, 2754/1402. 30160-042 Belo Horizonte, Minas Gerais, Brasil. E-mail:
  • Publication Dates

    • Publication in this collection
      10 July 2009
    • Date of issue
      Mar 1999

    History

    • Accepted
      01 Mar 1999
    • Received
      19 Sept 1997
    Sociedade Brasileira de Zoologia Caixa Postal 19020, 81531-980 Curitiba PR Brasil, Tel./Fax: +55 41 3266-6823, - Curitiba - PR - Brazil
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