First record of Melanorivulus decoratus (Costa, 1989) (Cyprinodontiformes: Rivulidae) in the lower-middle São Francisco River, Brazil
Abstract The non-annual rivulid Melanorivulus decoratus is an endemic fish from the São Francisco River basin that was previously recorded only in small tributaries along river’s middle stretch in northwestern Bahia. The present record marks the first appearance of M. decoratus in the lower-middle São Francisco, approximately 450 km northeast of the closest previously documented site, providing an updated map of the species’ distribution. Currently classified as Least Concern (LC), this new occurrence record expands knowledge of the species’ range and conservation status.
Authors
- Augusto Luís Bentinho Silva (ORCID: https://orcid.org/0000-0002-5296-4077)
- Silvia Maria Millan Gutierre (ORCID: https://orcid.org/0000-0003-1905-3535)
- Patrícia Avello Nicola (ORCID: https://orcid.org/0000-0002-3562-6295)
- Luanny Rainy de Almeida Silva (ORCID: https://orcid.org/0000-0002-1855-7427)
- Luiz Cézar Machado Pereira (ORCID: https://orcid.org/0000-0002-4028-6424)
- Giancarlo Arraes Galvão (ORCID: https://orcid.org/0000-0002-8859-2703)
Institutions
- Universidade Federal do Vale do São Francisco (BR)
Publication Details
- Journal
- Acta Limnologica Brasiliensia
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1590/s2179-975x10024
- Primary Topic
- Fish biology, ecology, and behavior
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Universidade Federal do Rio de Janeiro
- Fundação Universidade Federal do Vale do São Francisco