Ichthyofauna of sandy beaches along the Acre river, Brazil

Authors

  • Ronaldo Souza da Silva Univerisdade Federal do Pará, Programa de Pós-Graduação em Zoologia https://orcid.org/0000-0002-5281-5928
  • Fabiano Corrêa Universidade do Estado de Mato Grosso, Programa de Pós-Graduação em Ecologia e Conservação https://orcid.org/0000-0003-1909-5137
  • Lucas Pires de Oliveira Universidade Federal do Acre, Laboratório de Ictiologia e Ecologia Aquática
  • Vinicius Guerra Universidade Federal do Acre, Laboratório de Ictiologia e Ecologia Aquática https://orcid.org/0000-0003-1912-1139
  • Bruno Stefany Barros Universidade Federal de Rondônia
  • Lisandro Juno Soares Vieira Universidade Federal do Acre, Laboratório de Ictiologia e Ecologia Aquática https://orcid.org/0000-0002-2470-5684

Keywords:

Amazon, Characiformes, Neotropical Region, Sampling Gaps, Siluriformes, Species Diversity

Abstract

Abstract: Despite increasing efforts in recent years to catalog the fish diversity of Amazonian rivers, many regions are still under-sampled, and sandy beach environments are particularly poorly understood. The present study focused on a 300 km stretch of the Acre river, in the southwestern Amazon basin, where we sampled 30 sandy beaches separated by a mean interval of 10 km. We collected 15,329 fish representing 80 species, 26 families, and nine orders. The Characiformes were the most abundant order, providing 88.24% of the individuals collected, followed by the Siluriformes, with 10.03%, while the Siluriformes had the highest species richness, with 37 species (45.0%), followed by the Characiformes, with 30 (37.5%). The most abundant species were the characiforms Knodus orteguasae and Creagruto barrigai. Reliable data on a region’s biota is fundamental for the evaluation of patterns of biodiversity, and the occurrence and management of threatened species. As fish are directly affected by pollutants and the degradation of aquatic environments, further research in areas that are still poorly sampled will be essential for the elaboration of effective conservation strategies.

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Published

2020-01-01

How to Cite

Silva, R. S. da, Corrêa, F., Oliveira, L. P. de, Guerra, V., Barros, B. S., & Vieira, L. J. S. (2020). Ichthyofauna of sandy beaches along the Acre river, Brazil. Biota Neotropica, 20(3). Retrieved from //www.biotaneotropica.org.br/BN/article/view/1757

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