What is it about?
As a result of intense collecting efforts of fishes in the Uruguay River basin, specifically in the state of Rio Grande do Sul, significant findings have been made. Scientists found a fish called Phallotorynus victoriae for the first time in the Uruguay River basin, which is in the grasslands of southern Brazil. They discovered only one fish in a small river that flows into the Ibicuí River, near the town of Uruguaiana, in the state of Rio Grande do Sul.
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Why is it important?
In Brazil, two species of Phallotorynus, P. fasciolatus and P. jucundus, are considered Endangered according to ICMBio 2016. However, Phallotorynus victoriae, found in various locations with an Extent of Occurrence exceeding 20,000 km2, is more widely distributed along the Paraná and Uruguay rivers. Despite being relatively rare and confined to habitats with intact riparian vegetation, its wide distribution qualifies it as Least Concern under IUCN criteria (IUCN 2017).
Perspectives
This discovery highlights that while the Uruguay river basin is relatively well-known, there are still unexplored habitats where unreported species may exist, such as Ctenobrycon cf. alleni, Serrapinnus kriegi, and Laetacara dorsigera, recently reported in other river basins. As a result, this study represents the first record of the Phallotorynus genus and expands the known distribution of P. victoriae in the Uruguay river basin and the state of Rio Grande do Sul.
Dr. Junior Chuctaya
Universidade Federal do Rio Grande do Sul
Read the Original
This page is a summary of: First record of Phallotorynus victoriae Oliveros, 1983 (Cyprinodontiformes, Poeciliidae) for Uruguay river basin and Rio Grande do Sul, southern Brazil, Check List, January 2018, Pensoft Publishers,
DOI: 10.15560/14.1.159.
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