First record of Arapaima gigas (Schinz, 1822) (Teleostei: Osteoglossomorpha), the “pirarucu”, in the upper Paraná River basin, Southeast Brazil

Carvalho, Fernando; Casatti, Lílian; Manzotti, Angelo Rodrigo; Ravazzi, Délcero C. W.

doi:10.15560/11.5.1729

Cited by 4 publications

(1 citation statement)

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“…In addition to the introduction of species from other regions, cases of intentional translocations of species between river basins are known, such as, for example, the peacocks bass from the Rio Tocantins basin (Cichla kelberi Kullander &Ferreira, 2006 andCichla piquiti Kullander &Ferreira, 2006) and the Rio Amazon basin pirarucu (Arapaima gigas (Schinz, 1822)), carnivorous/piscivorous species introduced into the upper Rio Paraná basin (Gasques et al, 2014;Carvalho et al, 2015) that can be so harmful to the native fauna and other invasive exotics, so this activity must be avoided under any circumstances.…”

Section: Discussionmentioning

confidence: 99%

Non-native freshwater fish from drainages of Rio Grande do Sul State, Brazil

Bertaco

Azevedo

2023

Pap. Avulsos Zool.

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The present study catalogues exotic and allochthonous fish species found in the three main freshwater river drainages of Rio Grande do Sul State using records of scientific collections and literature, and discusses the main impacts caused by their introduction in natural environments. Ten exotic species are found in the area, i.e., Clarias gariepinus, Coptodon rendalli, Ctenopharyngodon idella, Cyprinus carpio, Hypophthalmichthys molitrix, Hypophthalmichthys nobilis, Ictalurus punctatus, Micropterus salmoides, Oncorhynchus mykiss and Oreochromis niloticus, belonging to five orders, nine genera and seven families. These fishes are native from African, Asian, European and North American countries. The eight allochthonous species, i.e., Acestrorhynchus pantaneiro, Hoplerythrinus unitaeniatus, Hoplias lacerdae, Megaleporinus macrocephalus, Piaractus mesopotamicus, Pachyurus bonariensis, Serrasalmus maculatus, and Trachelyopterus lucenai, belong to three orders, eight genera, and six families, are native from the Río La Plata basin, that includes the Río Uruguay, and have been all registered in the Laguna dos Patos. Two of these species are further recorded in the Rio Tramandaí system (A. pantaneiro and T. lucenai). The study also presentes a brief history of the first records of exotic species in the state and in the country, and their main vectors of introduction. According to the records of exotic species in scientific collections, the two exotic species with the highest number of records in the country are tilapias Coptodon rendalii (508 records) and Oreochromis niloticus (376 records), and most records occurred in the last two decades. The two carps Cyprinus carpio and Ctenopharyngodon idella are the only exotic species recorded in the three main drainage basins of the state. In addition, we warn about the importance of studies about the biology and negative impacts of exotic species over native species on the understanding of management in wild environments.

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Section: Discussionmentioning

confidence: 99%

Non-native freshwater fish from drainages of Rio Grande do Sul State, Brazil

Bertaco

Azevedo

2023

Pap. Avulsos Zool.

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The same old mistakes in aquaculture: the newly-available striped catfish Pangasianodon hypophthalmus is on its way to putting Brazilian freshwater ecosystems at risk

et al. 2018

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Status and recommendations for sustainable freshwater aquaculture in Brazil

Nobile

Cunico

Vitule

et al. 2019

Reviews in Aquaculture

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Brazil is a megadiverse country and is participant of fundamental environmental agreements for biodiversity conservation. However, the internal politics and the cultures that affect negatively the ecological integrity in Brazilian freshwater need to be improved on the condition of sustainable management. Scientific community, the government and stakeholders are in constant conflicts of goals. Meanwhile, the current model for Brazilian aquaculture shows problems of ecological impact due to the lack of appropriated planning and legislation to the aquatic biota. The non‐recognition of sustainable census incorporated in its environmental politics reflects in an archaic and unsustainable management, with the following characters: a non‐specific approach for technical management, the indiscriminate use of interspecific hybrids and non‐native species and the lack of skilled labour. The potential impact on native species and the introduction of pathogens are the main negative effects on aquatic biota. This way, the aim of this article is to elucidate the conflicts of interests and ecological effects of fish aquaculture in Brazil, besides providing good practices and sustainable alternatives for management.

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First record of Arapaima gigas (Schinz, 1822) (Teleostei: Osteoglossomorpha), the “pirarucu”, in the upper Paraná River basin, Southeast Brazil

Cited by 4 publications

References 4 publications

Non-native freshwater fish from drainages of Rio Grande do Sul State, Brazil

Non-native freshwater fish from drainages of Rio Grande do Sul State, Brazil

The same old mistakes in aquaculture: the newly-available striped catfish Pangasianodon hypophthalmus is on its way to putting Brazilian freshwater ecosystems at risk

Status and recommendations for sustainable freshwater aquaculture in Brazil

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