Ichthyofauna from “serranias costeiras” of the Ribeira de Iguape River basin, Southeast Brazil

Authors

  • Mauricio Cetra Universidade Federal de São Carlos, Departamento de Ciências Ambientais https://orcid.org/0000-0002-3902-0661
  • George Mattox Universidade Federal de São Carlos, Departamento de Biologia https://orcid.org/0000-0003-4748-472X
  • Perla Bahena Romero Universidade Federal de São Carlos, Programa de Pós-Graduação em Planejamento e Uso de Recursos Renováveis
  • Stephanie Hernández Escobar Universidade Federal de São Carlos, Programa de Pós-Graduação em Planejamento e Uso de Recursos Renováveis
  • Euriluce Aparecida Guimarães Universidade Federal de São Carlos, Programa de Pós-Graduação em Planejamento e Uso de Recursos Renováveis
  • Rubens Antonio Felipe Turin Universidade Federal de São Carlos, Departamento de Ciências Ambientais

Keywords:

fish communities, IUCN, endemic species

Abstract

Abstract: The Ribeira de Iguape River basin has about 100 fish species. This study aimed to characterize the fish community from “serranias costeiras” of the Ribeira de Iguape River basin. Samplings were conducted with electrofishing during the dry season in the years 2018-2019. The sampling effort consisted of 30 streams stretches. As a result, 50 species were captured, distributed in 37 genera, 11 families, and six orders. The species richness estimate (SChao1) was 57 species, and the coverage estimate for the entire data set was C = 0.998. Harttia kronei and Chasmocranus lopezae are endemic species and can be used as bioindicators of streams in this river basin. We captured approximately nine species by stream stretch. Beta diversity was found to be more critical for gamma diversity than alpha diversity. This finding highlights the streams environmental heterogeneity importance for maintaining regional fish diversity. We captured eight individuals of the threatened species Spintherobolus papilliferus and this indicates an expansion in the geographic distribution of this species.

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Published

2020-01-01

How to Cite

Cetra, M., Mattox, G., Romero, P. B., Escobar, S. H., Guimarães, E. A., & Turin, R. A. F. (2020). Ichthyofauna from “serranias costeiras” of the Ribeira de Iguape River basin, Southeast Brazil. Biota Neotropica, 20(4). Retrieved from //www.biotaneotropica.org.br/BN/article/view/1773

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