First record of the non-native species Bryconops aff. melanurus (Bloch, 1794) (Characiformes: Iguanodectidae) in the Paraná River floodplain, upper Paraná River basin, Brazil.
Renan B Dos Reis, Matheus Zirondi Roloff, Thiago Henrique Pedroso, Gabriela Cassia Zanon Reinas, Bruno Henrique Mioto Stabile, Isadora Carolina Martins, Fernando R Carvalho
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Abstract
This study presents the first record of the non-native species Bryconops aff. melanurus (Bloch 1794) within the upper Paraná River floodplain in Brazil. Two specimens were collected in December 2023 as part of a long-term ecological research programme (PELD). A morphological analysis confirmed species identity. The introduction of B. aff. melanurus into this region raises concerns about its potential impact on the local ichthyofauna because of its dietary plasticity and the disturbed nature of the ecoregion. It is essential to conduct continuous monitoring to assess the ecological implications of the introduction.
期刊介绍：
The Journal of Fish Biology is a leading international journal for scientists engaged in all aspects of fishes and fisheries research, both fresh water and marine. The journal publishes high-quality papers relevant to the central theme of fish biology and aims to bring together under one cover an overall picture of the research in progress and to provide international communication among researchers in many disciplines with a common interest in the biology of fish.
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