Peixes como indicadores da qualidade ambiental do ribeirão Esperança, município de Londrina, Paraná, Brasil

Vieira, Daniel Bartolomei; Shibatta, Oscar Akio

doi:10.1590/s1676-06032007000100008

Cited by 47 publications

(42 citation statements)

References 10 publications

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“…Notwithstanding of the alterations of the environment, the native species have still been finding habitats for their survival, however, the abundance of exotic species can be a sign that they are competing for the exploitation of the environment and its resources (Vieira and Shibatta 2007). This success of non-native species upon the native species, allied to the resistance to high temperatures, salinity and low concentrations of dissolved oxygen of these species, are important traits for the success in altered environments (Moyle and Cech Jr. 1996).…”

Section: Resultsmentioning

confidence: 99%

“…The lack of studies in Brazilian urban streams, mainly on fish assemblage composition and structure (except Oliveira and Benneman 2005;Vieira and Shibatta 2007;Cunico et al 2006; hinder possible management actions in these environments. Thus, this study provides a list of fish species from three small urban headwater streams in the city of Toledo, state of Paraná.…”

Section: Introductionmentioning

confidence: 99%

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Fish, Toledo urban streams, São Francisco Verdadeiro River drainage, upper Paraná River basin, state of Paraná, Brazil

Gubiani¹,

Daga²,

Frana³

et al. 2010

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In the Toledo metropolitan area there are many small headwater streams which suffer the influence of the urban development (pollution, deforestation, introduction of non-native species). The list of fish species in these sites is important for the knowledge on biodiversity in similar environments. Samples were taken bimonthly from October 2007 to February 2009 in three sites (headwater, middle and mouth) along of the three streams within urbanization gradient in the city of Toledo. A total of 27 fish species ascribed to 18 Genera, six Orders and 11 Families were collected, among which four species are non-native species, and seven are probably new to the science.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fish, Toledo urban streams, São Francisco Verdadeiro River drainage, upper Paraná River basin, state of Paraná, Brazil

Gubiani¹,

Daga²,

Frana³

et al. 2010

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“…Some have treated morphological description and comparison of the sexes (Gusmão & Pavanelli, 1996). Others have suggested that some species can be used to assess habitat integrity (Bozzetti & Schulz, 2004;Cunico et al, 2006;Ferreira & Casatti, 2006;Pinto et al, 2006;Vieira & Shibatta, 2007), mainly Poecilia reticulata and Phalloceros caudimaculatus.…”

Section: Introductionmentioning

confidence: 99%

Ecology of Phallotorynus pankalos (Cyprinodontiformes: Poeciliidae) in a first-order stream of the upper Paraná Basin

et al. 2009

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Some aspects of the population ecology of Phallotorynus pankalos in a first-order stream of the Iguatemi River Basin are described based on samples taken from March/2007 to February/2008. A total of 2680 individuals, including 948 males and 1732 females was collected. Adult females are larger than males; theirs mean fecundity was estimated as 6.5 embryos/female. There was a strong correlation between standard length and ovary weight, relative ovary weight, and number of embryos. The size of the first maturation of 50% of female population was estimated as 18.24 mm of standard lenght. High female mortality was observed after the first reproduction and sex ratio presents seasonal variation with higher female proportion in the winter.Para descrever alguns aspectos da ecologia populacional de Phallotorynus pankalos em um riacho de primeira ordem da bacia do rio Iguatemi foram realizadas amostragens de março/2007 a fevereiro/2008. Um total de 2680 indivíduos, distribuídos em 948 machos e 1732 fêmeas, foi coletado. Fêmeas adultas foram maiores que os machos e sua fecundidade média foi estimada em 6,5 embriões/fêmea. Foi observada forte correlação entre o comprimento padrão e o peso dos ovários, peso relativo dos ovários e número de embriões. O tamanho da primeira maturação de 50% da população de fêmeas foi estimado em 18,24 mm de comprimento padrão. Observamos elevada mortalidade de fêmeas após a primeira reprodução e variação sazonal na proporção sexual, com maior proporção de fêmeas no inverno.

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“…The middle segment of the João Pinheiro (JP-2) has flooded areas with submerged marginal vegetation, which may provide microhabitats for the establishment of the species. The middle segment of the Rio Preto (RP-2), which presents disturbed substrate, had the highest abundance of P. harpagos, demonstrating the opportunistic characteristic of this species and high tolerance to the loss of environmental quality (Vieira & Shibatta 2007, Felipe & Súarez 2010. The second most representative species in number was Trichomycterus aff.…”

Section: Discussionmentioning

confidence: 99%

Longitudinal patterns of fish assemblages in mountain streams from tropical forest biome

et al. 2013

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Abstract:The aim of this study was to verify structure patterns in fish assemblages in mountain streams of the Rio Tibagi basin through the characterization of spatial and temporal variations in the composition of fish species. Samples were collected in three segments of the Varanal, João Pinheiro and Rio Preto streams. We collected 1154 specimens belonging to 21 species. The most abundant orders were Characiformes (59.01 ± 2.84%) and Siluriformes (39.34 ± 2.82%). Phalloceros harpagos was the most abundant species with 433 individuals, followed by Trichomycterus aff. davisi, with 292 individuals. No temporal variations (between seasons) were detected, but the cluster analysis suggests a separation of species composition between the segments closer to the headwaters and those more distant. The first two axes of the Canonical Correspondence Analysis (CCA) explained 80.09% of the variation in species abundance, and the variables that structured the fish assemblages in those streams were the stream width, depth, water speed, flow rate, conductivity and pH. Resumo: O objetivo deste trabalho foi verificar padrões na estrutura de assembleias de peixes nos riachos de montanha da bacia do rio Tibagi através da caracterização de variações espaciais e temporais na composição de espécies de peixes. Foram realizadas coletas em três trechos dos riachos Varanal, João Pinheiro e Rio Preto. No total foram coletadas 21 espécies, em um total de 1154 indivíduos. As ordens mais abundantes foram Characiformes (59,01 ± 2,84%) e Siluriformes (39,34 ± 2,82%). Phalloceros harpagos foi a espécie mais abundante, com 433 indivíduos, seguida por Trichomycterus aff.davisi com 292 indivíduos. Não foi verificada variação temporal (entre estações), mas a análise de agrupamento sugere uma separação na composição de espécies entre os trechos mais próximos das nascentes dos trechos mais afastados. Os dois primeiros eixos da Análise de Correspondência Canônica (CCA) explicaram 80,09% da variação na distribuição em abundância das espécies de peixes, sendo que as variáveis que estruturam a assembleia de peixes nos riachos estudados foram a largura, a profundidade, a velocidade da água, a vazão, a condutividade e o pH dos riachos. Palavras-chave: ictiofauna, peixes de água doce, peixes neotropicais, riachos de baixa ordem, bacia do rio Tibagi. 65Patterns of fish assemblages in mountain streams http://www.biotaneotropica.org.br Biota Neotrop., vol. 13, no. 3 composition and possible relationships between the sampled species and environmental variables in each sampled segment. In this way, we hope to contribute to the knowledge about the ecology of mountain stream fishes of the Atlantic Rain Forest. Material and Methods Study areaSamples were taken in the headwater, middle portion and mouth segments of the Varanal, João Pinheiro and in the upper portion of the Rio Preto streams (Figures 1 and 2). The order of each sampled segment was defined with aid of cartographic letters with scale 1:250,000 (Strahler 1957). The Varanal stream is a tributary of the...

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Peixes como indicadores da qualidade ambiental do ribeirão Esperança, município de Londrina, Paraná, Brasil

Cited by 47 publications

References 10 publications

Fish, Toledo urban streams, São Francisco Verdadeiro River drainage, upper Paraná River basin, state of Paraná, Brazil

Fish, Toledo urban streams, São Francisco Verdadeiro River drainage, upper Paraná River basin, state of Paraná, Brazil

Ecology of Phallotorynus pankalos (Cyprinodontiformes: Poeciliidae) in a first-order stream of the upper Paraná Basin

Longitudinal patterns of fish assemblages in mountain streams from tropical forest biome

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