Características reprodutivas de peixes invasores no rio Paranapanema, bacia do alto rio Paraná, sul do Brasil

Garcia, Diego Azevedo Zoccal; Vidotto‐Magnoni, Ana Paula; Órsi, Mário Luís

doi:10.3897/neotropical.14.e49079

Cited by 9 publications

(7 citation statements)

References 49 publications

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“…Several theories about biological invasions have shown that the success of invasive species depends on biotic (Elton 1958) and abiotic factors (Davis et al 2000), or an interaction between the two (Lockwood et al 2005). According to Garcia et al (2019), there is not a set of resources capable of predicting which species of fish can be successful in the invasion; however, both the biological characteristics and the degree of impact of the invaded area can facilitate the establishment and dispersion.…”

Section: Discussionmentioning

confidence: 99%

Ichthyofauna of Tributary Streams of the Cinzas River Basin, Paranapanema River, Brazil

2021

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Streams are environments that are very affected by human activities such as pollution, deforestation of riparian forests and introduction of exotic species. In this context, it is important to know its biodiversity for monitoring and conservation. The present study inventoried the fish fauna of three tributary streams of the Jacarezinho River (Cinzas River basin, Paranapanema River) with different environmental characteristics: Água dos Anjos, Monjolinho and Ubá streams. Quarterly collections were performed in the period between October 2012 and July 2013 at the headwaters, in the middle and at the mouth of each stream, using electrofishing. We analyzed the parameters of species richness, total abundance, relative abundance, capture constancy, rarefaction curves of Coleman, and richness estimators ACE and ICE. We captured a total of 7102 individuals, distributed in six orders, 12 families and 33 species. The most abundant order was Characiformes (76.15 %), while the most abundant species were: Bryconamericus iheringii (39.5 %), Astyanax bockmanni (19.36 %), and Geophagus brasiliensis (7.52 %). The highest species richness was found in Água dos Anjos stream (26), followed by Monjolinho stream (25), and the Ubá stream (15). We recorded the occurrence of four non-native species (Bryconamericus exodon, Gymnotus inaequilabiatus, Poecilia reticulata and Oreochromis niloticus), which represent a risk to the biodiversity of the studied streams. The Ubá stream was considered the most conserved, but the presence of P. reticulata shows that it has also suffered from anthropic impacts. This non-native species is constantly associated to degraded environments, mainly when it occurs in high abundance. Our results suggest that the fish assemblages studied present different structures, probably due to the interaction among historical, abiotic, biotic, and anthropic factors. This study has been carried out for the first time in the Cinzas River basin and can help provide theoretical input for the elaboration of monitoring and conservation plans.

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Section: Discussionmentioning

confidence: 99%

Ichthyofauna of Tributary Streams of the Cinzas River Basin, Paranapanema River, Brazil

2021

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“…Species with generalist reproductive and trophic niche strategies are more likely to have invasion success (Agostinho et al 2007(Agostinho et al , 2016Garcia et al 2018aGarcia et al , 2018bGarcia et al , 2019. Galvão et al (2016) observed that P. kennedyi might be sexually mature throughout the year, with both females and males with three stages of gonadal maturation.…”

Section: Discussionmentioning

confidence: 99%

“…The large number of non-native fishes present in the Lower Paranapanema river basin (Garcia et al 2018a;Jarduli et al 2020) shows that this stretch of the river presents several optimal environmental conditions and resources for fish species in the system (Blackburn et al 2011;Garcia et al 2018bGarcia et al , 2019. Biological invasion is one of the main drivers of biodiversity loss and ecosystem damage.…”

Section: Introductionmentioning

confidence: 99%

Distribution modeling of Psellogrammus kennedyi (Eigenmann, 1903) and new records in the Lower Paranapanema River, Brazil

Jarduli¹,

Pereira²,

Garcia³

et al. 2021

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Understanding the potential distribution of non-native species can be an important tool in preventing biological invasions. We recorded for the first time Psellogrammus kennedyi, a small non-native characiform, in the Lower Paranapanema River, Brazil. According to environmental variables and prediction modeling, the species presents high potential distribution in the Upper Paraná river basin. The model used herein is an efficient tool to determine where non-native species may be able to establish. This approach can be used as a preventive measure, once the control and eradication measures are often ineffective and uneconomical.

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“…e Xiphophorus spp. mantêm embriões internamente no corpo da fêmea), aumentando a chance de sobrevivência dos filhotes (Garcia et al 2019a). Por outro lado, as espécies que apresentam alta fecundidade e liberam seus gametas diretamente na água, como as carpas e Carassius auratus (Cypriniformes, Cyprinidae), levam vantagem por produzir uma prole numerosa, desde que o ambiente seja propício ao seu desenvolvimento (Moyle & García-Berthou 2011, Magalhães & Jacobi 2013.…”

Section: Por Que Algumas Introduções Falham E Outras Têm Sucesso?unclassified

Peixes Não-Nativos Em Riachos No Brasil: Estado Da Arte, Lacunas De Conhecimento E Perspectivas

et al. 2021

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Biological invasions are among the main causes of biodiversity loss on planet. Losses are accentuated in streams, which are sensitive to human impacts, since they have specialized fauna and higher degree of endemism. Despite this, studies on invasions by non-native fish in streams are incipient in Brazil. In this review, we present an introduction on the process (i.e., stages) of biological invasion, the environmental factors that influence the establishment and the impacts of non-native species in streams. A methodological step-by-step is also presented as a way to guide the conduct of studies on non-native species in Brazilian streams. In addition, management actions measures are presented to prevent new cases of introductions and suggestions for studies on invasions in streams. Avoiding propagule pressure and environmental education, as well as legal aspects of Brazilian legislation, are management actions that can prevent new introductions. Finally, gaps in knowledge and perspectives are raised as an incentive for interested parties to enter the subject and develop new studies on non-native fishes in Brazilian streams.

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Características reprodutivas de peixes invasores no rio Paranapanema, bacia do alto rio Paraná, sul do Brasil

Cited by 9 publications

References 49 publications

Ichthyofauna of Tributary Streams of the Cinzas River Basin, Paranapanema River, Brazil

Ichthyofauna of Tributary Streams of the Cinzas River Basin, Paranapanema River, Brazil

Distribution modeling of Psellogrammus kennedyi (Eigenmann, 1903) and new records in the Lower Paranapanema River, Brazil

Peixes Não-Nativos Em Riachos No Brasil: Estado Da Arte, Lacunas De Conhecimento E Perspectivas

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