New records of Aspidoras fuscoguttatus Nijssen & Isbrücker, 1976 (Callichthyidae, Corydoradinae) from the São Francisco river basin, Brazil

Aspidoras fuscoguttatus Nijssen & Isbrücker, 1976 is a small, relatively common armored catfish considered endemic to the upper Paraná river basin. Here, based on recent collections, as well as morphological and molecular evidence, the known geographic distribution of this species is extended to...

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Bibliographic Details
Published in:Check list (Luís Felipe Toledo) 2023-01, Vol.19 (6), p.901-908
Main Authors: Freitas, Matheus Oliveira, Hauer, Adriano, Dalcin, Roger Henrique, Ossa-Guerra, Luz Elena De la, Artoni, Roberto Ferreira, Moura, Rodrigo Leão de, Abilhoa, Vinícius
Format: Article
Language:English
Subjects:
Aspidoras fuscoguttatus
Basins
Creeks & streams
DNA polymerase
Geographical distribution
Headwaters
Morphology
New records
River basins
Rivers
Surveys
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Description
Summary:Aspidoras fuscoguttatus Nijssen & Isbrücker, 1976 is a small, relatively common armored catfish considered endemic to the upper Paraná river basin. Here, based on recent collections, as well as morphological and molecular evidence, the known geographic distribution of this species is extended to the basin of the São Francisco River. Specimens were collected during biological surveys in two unnamed tributaries of the Paraopeba River, in the headwaters of the São Francisco River. The new records may be a consequence of headwater stream-captures between São Francisco and upper Paraná drainages. Continued surveys are needed to assess and mitigate natural and human impacts, including biological exchanges between basins.
ISSN:1809-127X
1809-127X
DOI:10.15560/19.6.901