Morphological deformities in the invasive driftwood catfish Trachelyopterus galeatus in the Upper Paraná River basin, Brazil: a sign of human impact?
| Autor: | Lucas Ribeiro Jarduli, João Daniel Ferraz, Mário Luís Orsi, Armando César Rodrigues Casimiro, Diego Azevedo Zoccal Garcia, Fernanda Simões de Almeida |
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| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Barbel biology Trachelyopterus galeatus 010604 marine biology & hydrobiology fungi Aquatic Science Structural basin biology.organism_classification 010603 evolutionary biology 01 natural sciences Fishery Fish anatomy Rivers Parana river Environmental monitoring Animals Humans Driftwood catfish Ecology Evolution Behavior and Systematics Brazil Catfishes Catfish Environmental Monitoring |
| Zdroj: | Journal of fish biologyREFERENCES. 99(3) |
| ISSN: | 1095-8649 |
| Popis: | In this study, the authors report morphological deformities in driftwood catfish Trachelyopterus galeatus (Auchenipteridae), an invasive catfish occurring in the Upper Parana River basin, Brazil. The frequency of anomalous individuals reached 18.3% of all catches. X-ray images showed anomalies, or total absence of structures, in the pelvic girdle. The authors also observed the absence of the adipose fin and mental barbels. These findings are of extreme importance for evidencing the anthropogenic impact on aquatic communities as the region suffers within fragmentation by dams and pollution from several human activities. This sort of information can be used in management systems and environmental monitoring, especially to protect other species and the native fish assemblage. |
| Databáze: | OpenAIRE |
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