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Escapes of non-native fish from flooded aquaculture facilities: the case of Paranapanema River, southern Brazil
- Source :
- Zoologia (Curitiba), Vol 35, Iss 0 (2018), Zoologia (Curitiba), Volume: 35, Article number: e14638, Published: 18 JUN 2018
- Publication Year :
- 2018
-
Abstract
- 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.
- Subjects :
- 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
Subjects
Details
- Language :
- English
- ISSN :
- 19844670
- Database :
- OpenAIRE
- Journal :
- Zoologia (Curitiba), Vol 35, Iss 0 (2018), Zoologia (Curitiba), Volume: 35, Article number: e14638, Published: 18 JUN 2018
- Accession number :
- edsair.doi.dedup.....b2ff4913bae08b14b7c2ff6740a429af