First records of introduced carps (Teleostei, Cyprinidae) in the natural habitats of Mirim and Patos Lagoon estuary, Rio Grande do Sul, Brazil

  • Garcia A
  • Loebmann D
  • Vieira J
  • et al.
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Abstract

This is the first record in the wild of occurrence of four carp species (bighead Aristichthys nobilis (Richardson, 1845), common Cyprinus carpio carpio Linnaeus, 1758, silver Hypophthalmichthys molitrix (Valenciennes, 1844), and grass carp Ctenopharyngodon idellus (Valenciennes, 1844)) in the Mirim Lagoon and Patos Lagoon estuary. Our findings reinforce the hypothesis that during periods of elevated rainfall and freshwater discharge, exotic species could be easily transported from overflowed ponds and lakes into the Mirim-Patos Lagoon and then estuarine area.Este trabalho registra a ocorrência de quatro espécies de carpas (cabeça-grande Aristichthys nobilis (Richardson, 1845), comum Cyprinus carpio carpio Linnaeus, 1758, prateada Hypophthalmichthys molitrix (Valenciennes, 1844), e capim Ctenopharyngodon idellus (Valenciennes, 1844)) em ambientes naturais da Lagoa Mirim e do estuário da Lagoa dos Patos. Os resultados reforçam a hipótese de que durante períodos de excesso de chuvas e elevada descarga continental, espécies exóticas poderiam ser facilmente transportadas de tanques de cultivos e lagos transbordados para a Lagoa Mirim e a região estuarina da Lagoa dos Patos.

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Garcia, A. M., Loebmann, D., Vieira, J. P., & Bemvenuti, M. A. (2004). First records of introduced carps (Teleostei, Cyprinidae) in the natural habitats of Mirim and Patos Lagoon estuary, Rio Grande do Sul, Brazil. Revista Brasileira de Zoologia, 21(1), 157–159. https://doi.org/10.1590/s0101-81752004000100027

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