Escapes of non-native fish from flooded aquaculture facilities: the case of Paranapanema River, southern Brazil
| Autor: | Mário Luís Orsi, John Robert Britton, Armando César Rodrigues Casimiro, Diego Azevedo Zoccal Garcia, Fernanda Simões de Almeida, Ângelo Antônio Agostinho, Ana Paula Vidotto-Magnoni |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Paraná River Fauna Fish farming Drainage basin Biodiversity 010603 evolutionary biology 01 natural sciences propagule pressure Aquaculture Coptodon lcsh:Zoology lcsh:QL1-991 geography geography.geographical_feature_category biology business.industry 010604 marine biology & hydrobiology Propagule pressure biology.organism_classification Fishery Oreochromis climate change Animal Science and Zoology business Biological invasion fish farming |
| Zdroj: | Zoologia (Curitiba), Vol 35, Iss 0 (2018) Zoologia (Curitiba), Volume: 35, Article number: e14638, Published: 18 JUN 2018 |
| ISSN: | 1984-4670 |
| Popis: | Non-native species are a major driver of biodiversity loss. Aquaculture activities play a key role in introductions, including the escape of fishes from fish farm facilities. Here, the impact of flooding due to El Niño rains in 2015/2016 in the Lower and Middle Paranapanema River basin, southern Brazil, was investigated by evaluating fish escapes from 12 fish farms. The flooding resulted in the escape of approximately 1.14 million fishes into the river, encompassing 21 species and three hybrids. Non-native species were the most abundant escapees, especially Oreochromisniloticus (Linnaeus, 1758) and Coptodonrendalli (Boulenger, 1897) (96% of all fish). Only seven native fishes were in the escapee fauna, comprising 1% of all fish. Large floods, coupled with inadequate biosecurity, thus resulted in considerable inputs of non-native fish into this already invaded system. |
| Databáze: | OpenAIRE |
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