The fish fauna of the Jacaré-Guaçu River basin, Upper Paraná River basin

Esguícero, André Luiz Henríques; Arcifa, Marlene Sofía

doi:10.1590/s1676-06032011000100010

Cited by 12 publications

(8 citation statements)

References 18 publications

(26 reference statements)

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“…Our results agree with other ichthyofaunistic studies in the upper rio Paraná and other Neotropical rivers, which also found a high diversity of these two orders (e.g. Castro et al 2004;Langeani et al 2007;Vari et al 2009;Esguícero and Arcifa 2011;Ohara and Loeb 2016). Indeed, Siluriformes and Characiformes are the most diverse groups of Neotropical freshwater fishes, followed by Gymnotiformes (Lowe-McConnell 1999;Fricke et al 2020).…”

Section: Discussionsupporting

confidence: 92%

“…The rio Tietê is one of the largest tributaries of the upper Paraná and may be divided into six sub-basins: upper Tietê, Tietê-Jacaré, Piracicaba-Capivari-Jundiaí, Sorocaba-middle Tietê, Tietê-Batalha, and lower Tietê (Ribeiro 2004). Several papers documented the fish diversity throughout this river (Uieda and Barreto 1999; Barrella and Petrere Jr 2003;Giamas et al 2004;Castro et al 2005;Langeani et al 2005;Silva et al 2006;Vidotto and Carvalho 2007;Esguícero and Arcifa 2011;Marceniuk et al 2011;Pazian et al 2011;Smith et al 2014;Serra et al 2015;Yoshida et al 2016).…”

Section: Introductionmentioning

confidence: 99%

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Ichthyofauna of the ribeirão Sucuri, tributary of rio Tietê, upper rio Paraná basin, southeastern Brazil

Reia¹,

Silva²,

Garcia‐Ayala³

et al. 2020

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The ribeirão Sucuri, a tributary of the rio Tietê, and part of the upper rio Paraná basin, is located in the municipality of Pongaí, São Paulo state. The ichthyofauna of ribeirão Sucuri was sampled at nine collection sites in May 2018. Our study captured 408 specimens representing five orders, 11 families, and 35 species. Among the species collected, two have not been previously reported from the rio Tietê basin: Eigenmannia guairaca Peixoto, Dutra & Wosiacki, 2015 and Hoplias misionera Rosso, Mabragaña, González-Castro, Delpiani, Avigliano, Schenone & Días de Astarloa, 2016. Additionally, four species were found that are non-native: Hoplias misionera, Poecilia reticulata Peters, 1859, Roeboides descalvadensis Fowler, 1932, and Satanoperca sp. This study represents the first fish inventory of a tributary on the left margin of the Tietê-Batalha sub-basin and only the second for this portion of the rio Tietê. Our results increase to 55 the number of species recorded from this sub-basin and add data on the putative morphological variation in several species.

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Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Ichthyofauna of the ribeirão Sucuri, tributary of rio Tietê, upper rio Paraná basin, southeastern Brazil

Reia¹,

Silva²,

Garcia‐Ayala³

et al. 2020

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“…The procedures of dredging and management of macrophytes enhanced the fish diversity and the taxonomic representativeness in the reservoir, increasing the abundance of the Families Characidae (represented by four species) and Curimatidae (represented by two species). This new taxonomic composition in the reservoir is comparable to the fish fauna found in studies in the same area and in other tributaries of the upper Rio Paraná basin (Castro et al, 2003(Castro et al, , 2004(Castro et al, , 2005Langeani et al, 2007;Meschiatti & Arcifa, 2009;Esguícero & Arcifa, 2011). All the data discussed in this study point to a partial recovery of the Rio Jacaré-Guaçu, in the Gavião Peixoto Reservoir area, assuming that a total recovery of the Rio Jacaré-Guaçu is practically impossible, considering all the impact sources already imposed by anthropic actions and the consequent biodiversity loss.…”

Section: Discussionsupporting

confidence: 81%

“…The specimens were fixed in 10% formalin immediately after their capture, and transferred to 70% ethanol. Specimens were deposited at the Laboratório de Ictiologia de Ribeirão Preto (LIRP) of the Departamento de Biologia da Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Brazil (for information on Voucher specimens see Esguícero & Arcifa, 2011).…”

Section: Samplingmentioning

confidence: 99%

Effects of dredging and macrophyte management on the fish species composition in an old Neotropical reservoir

Esguícero

Arcifa

2017

Acta Limnol. Bras.

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Aim: As part of the remodeling of an almost century-old dam, in the Rio Jacaré-Guaçu, the dredging and management of macrophytes were carried out in the Gavião Peixoto Reservoir (São Paulo State, Brazil). Data for the reservoir and a river stretch upstream the reservoir were compared, for evaluating the effects of the management procedures. Methods: The fish fauna and physical and chemical factors were studied during five years, before (2005)(2006) and after the recovery procedures (2007)(2008)(2009), once a year, during the rainy season. Fishes were caught by gill nets, 10 m long and 1.5, 4, and 6 cm-mesh between adjacent knots. Results: After the management procedures, the values of pH and dissolved oxygen increased in the reservoir, whereas conductivity decreased, bringing them closer to those of the upstream stretch. Species richness, diversity, and Catch per Unit Effort in number and biomass, increased in the reservoir after the management. Conclusions: After the recovery procedures, the composition of the fish fauna in the reservoir was similar to that of the upstream stretch. The dredging and management of macrophytes in the reservoir benefited the fish fauna diversity, through improvement in water quality and space expansion.Keywords: Upper Rio Paraná basin; antrophic impacts; hypoxia; Neotropical ichthyofauna.Resumo: Objetivo: Como parte da modernização de uma barragem quase centenária no Rio Jacaré-Guaçu, foram realizados o desassoreamento e o manejo de macrófitas no reservatório da PCH Gavião Peixoto (Estado de São Paulo, Brasil). Dados do reservatório e de um trecho do rio, a montante do reservatório, foram comparados, para avaliar os efeitos do manejo. Métodos: A ictiofauna e condições físicas e químicas foram estudadas durante cinco anos, antes (2005)(2006) e depois do processo de recuperação (2007)(2008)(2009), uma vez ao ano, na estação chuvosa. Os peixes foram coletados com rede de espera, de 10 m de comprimento e com malhas de 1.5, 4 e 6 cm entre nós adjacentes. Resultados: Após o manejo de macrófitas e desassoreamento, os valores de pH e de oxigênio dissolvido elevaram-se e os de condutividade diminuíram no reservatório, aproximando-os daqueles do trecho a montante. A riqueza de espécies, a diversidade e a Captura por Unidade de Esforço em número e biomassa, aumentaram no reservatório após o manejo. Conclusões: Depois dos procedimentos de recuperação, a composição da ictiofauna do reservatório foi semelhante à do trecho a montante. O desassoreamento e manejo de macrófitas no reservatório foram benéficos para a diversidade da ictiofauna, por melhorar a qualidade da água e pela ampliação do espaço.Palavras-chave: Bacia do alto Rio Paraná; impactos antrópicos; hipóxia; ictiofauna Neotropical.This is an

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“…Castro & Casatti, 1997;Castro et. al, 2003;Castro et al 2005;Langeani 2007;Apone et al 2008;Esguícero & Arcifa 2011, Casatti et al 2013Fagundes et al 2015). We also cite here that one of the present authors (RMCC) and collaborators (Castro et.…”

Section: Main Impacts On Preferential Habitats Of Small-sized Fishsupporting

confidence: 62%

Small-sized fish: the largest and most threatened portion of the megadiverse neotropical freshwater fish fauna

Castro

Polaz

2020

Biota Neotrop.

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CASTRO, R. M. C., POLAZ, C. N. M., Small-sized fish: the largest and most threatened portion of the megadiverse neotropical freshwater fish fauna. Biota Neotropica. 20(1): e20180683. http://dx.doi. Abstract:We introduce the work providing a synthetic description of the diversity and phyletic structure of freshwater fish in the Neotropical Region, especially emphasizing that of Brazil. This is accompanied by a discussion about environments of fish from small to medium sized to large, taking into account how it shaped their respective biologies/ecologies, as well as what they imply for their use by humans. We present, as figures, the results of our exploratory analysis of Brazilian Red Book of Threatened Species of Fauna (2018), focusing on the small-sized ones, with up to 15 cm of standard length. We continue to present the main human impacts in small fish environments, along with those suffered by medium to large fish environments, and then follow by their respective deleterious effects. Finally, we present a general synthesis, reinforcing the enormous importance of small fish conservation and their respective preferred environments, followed by our main conclusions, and possible conservation strategies. Peixes de pequeno porte: a porção maior e mais ameaçada da fauna megadiversa de peixes de água doce neotropicaisResumo: Iniciamos o trabalho fornecendo uma descrição sintética da diversidade e estrutura filética dos peixes de água doce da Região Neotropical, com ênfase naquela do Brasil, acompanhada de uma exposição sobre onde vivem os peixes de pequeno porte e os de porte médio a grande, levando em conta como isso moldou suas respectivas biologias/ecologias, e o que as mesmas implicam para seu uso pelos seres humanos. São apresentados, sob a forma de figuras, os resultados de uma análise exploratória dos dados sobre as 311 espécies de peixes ósseos de água doce contidos no Livro Vermelho da Fauna Brasileira Ameaçada de Extinção (2018), com ênfase naquelas de pequeno porte, com até 15 cm de comprimento padrão. Continuamos apresentando os principais impactos antrópicos nos ambientes de peixes de pequeno porte, juntamente com aqueles sofridos pelos ambientes de peixes de portes médio a grande, seguidos dos seus respectivos efeitos deletérios. Finalmente, concluímos com uma síntese geral, reforçando a enorme importância da conservação dos peixes de pequeno porte e seus ambientes preferenciais, e estratégias possíveis para conservação dos mesmos. Palavras-chave: Peixes pequenos, ictiofauna brasileira, peixes ameaçados, estratégias de conservação, políticas de biodiversidade.

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The fish fauna of the Jacaré-Guaçu River basin, Upper Paraná River basin

Cited by 12 publications

References 18 publications

Ichthyofauna of the ribeirão Sucuri, tributary of rio Tietê, upper rio Paraná basin, southeastern Brazil

Ichthyofauna of the ribeirão Sucuri, tributary of rio Tietê, upper rio Paraná basin, southeastern Brazil

Effects of dredging and macrophyte management on the fish species composition in an old Neotropical reservoir

Small-sized fish: the largest and most threatened portion of the megadiverse neotropical freshwater fish fauna

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The fish fauna of the Jacaré-Guaçu River basin, Upper Paraná River basin

Cited by 12 publications

References 18 publications

Ichthyofauna of the ribeir&atilde;o Sucuri, tributary of rio Tiet&ecirc;, upper rio Paran&aacute; basin, southeastern Brazil

Ichthyofauna of the ribeir&atilde;o Sucuri, tributary of rio Tiet&ecirc;, upper rio Paran&aacute; basin, southeastern Brazil

Effects of dredging and macrophyte management on the fish species composition in an old Neotropical reservoir

Small-sized fish: the largest and most threatened portion of the megadiverse neotropical freshwater fish fauna

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Ichthyofauna of the ribeirão Sucuri, tributary of rio Tietê, upper rio Paraná basin, southeastern Brazil

Ichthyofauna of the ribeirão Sucuri, tributary of rio Tietê, upper rio Paraná basin, southeastern Brazil