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Geographic expansion of the invasive mud sleeper Butis koilomatodon (Perciformes: Eleotridae) in the western Atlantic Ocean

Authors

  • R. M. Macieira,

    Corresponding author
    1. Laboratório de Ictiologia, Departamento de Oceanografia e Ecologia, Universidade Federal do Espírito Santo, Av. Fernando Ferrari, 514, Goiabeiras, 29075-910 Vitória, ES, Brazil
      Tel.: +55 27 4009 7791; email: raphaelmacieira@hotmail.com
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  • T. Giarrizzo,

    1. Laboratório de Biologia Pesqueira, Manejo dos Recursos Aquáticos, Universidade Federal do Pará, Av. Perimetral, 2651, Terra Firme, 66040170 Belém, PA, Brazil
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  • J. L. Gasparini,

    1. Laboratório de Ictiologia, Departamento de Oceanografia e Ecologia, Universidade Federal do Espírito Santo, Av. Fernando Ferrari, 514, Goiabeiras, 29075-910 Vitória, ES, Brazil
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  • I. Sazima

    1. Museu de Zoologia, Universidade Estadual de Campinas, C.P. 6109, 13083-970 Campinas, SP, Brazil
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Tel.: +55 27 4009 7791; email: raphaelmacieira@hotmail.com

Abstract

The Indo-Pacific mud sleeper Butis koilomatodon (Eleotridae) is recorded for the first time in the south-western Atlantic Ocean, based on 23 specimens caught at seven localities along the northern, north-eastern, eastern and south-eastern Brazilian coast. The occurrence of males and females in different ontogenetic stages indicates that this exotic mud sleeper breeds there. This invasive species has the potential to compete for food and microhabitat with several native gobies and an endemic blenny that dwell in estuaries and mangroves, besides preying on native fishes and crustaceans.

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