Poecilia sphenops Valenciennes, 1846 (Cyprinodontiformes, Poeciliidae): new record in rio Sergipe basin, northeastern Brazil

By

Brito, Marcelo Fulgêncio Guedes De
Pereira, Marlene Silva De Almeida
Figueiredo, Carlos Augusto

Type

Article

Date of Publication

2013-10-1

Original Publication

Check list : journal of species lists and distribution

Volume

9

Series / Issue

Issue: 5

Pages

1129--1131

Contributed by

Pensoft Publishers

Language

English

Published by

[São Paulo, Brazil] Luís Felipe Toledo 2005-

Identifiers

DOI: https://doi.org/10.15560/9.5.1129

 

Abstract

The present paper reports the first record of non-native species Poecilia sphenops Valenciennes, 1846 in northeastern Brazil in rio Sergipe basin, a coastal drainage of the Sergipe state. This species was collected at seven sites in the Caatinga biome. The cause of the introduction is not known, but we believe it is a direct impact of the aquarium trade through the aquarium dumping performed by hobbyists. The presence of P. sphenops in natural waterbodies increases concerns for interference with native ecosystems, and the risk of eggs predation in native species with low fecundity and absence of parental care such as Astyanax lacustris and Serrapinnus heterodon, competition and hybridization with the native poeciliid Poecilia vivipara.