2008
DOI: 10.1590/s1679-62252008000400002
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Abstract: The purpose of this study was to evaluate the role of abiotic factors on fish larvae occurrence. Samplings were carried out monthly at 12 stations (grouped in four areas) in the Amambaí, Ivaí and Paraná rivers and in the Itaipu Reservoir (upper Paraná River basin), from October 1994 to January 1995 (spawning season). Simultaneously, we obtained water temperature, pH, electrical conductivity, dissolved oxygen, water level, water velocity, and rainfall. Principal Component Analyses (PCA) and Detrended Correspond… Show more

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Cited by 64 publications
(71 citation statements)
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References 20 publications
(21 reference statements)
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“…Bialetzki et al (2005) found strong relationships between the structure of the ichthyoplankton assemblage and environmental variables in the Baia River, mainly related to water temperature, dissolved oxygen, rainfall and current speed. Other studies conducted in the upper Paraná River floodplain also identify these variables as determinants for fish egg and larvae abundance and distribution (Cavicchioli, 2000;Nakatani et al, 2001;Baumgartner, 2001;Castro et al, 2002;Nascimento & Nakatani, 2006;Sanches et al, 2006;Baumgartner et al, 2008). Furthermore, studies in other basins highlight the importance of environmental variability in the structuring of fish assemblages, mainly for adult fishes (Rodriguez & Lewis, 1997;Tejerina-Garro et al, 1998;Winemiller et al, 2000;Zeug et al, 2005).…”
Section: Discussionmentioning
confidence: 92%
See 1 more Smart Citation
“…Bialetzki et al (2005) found strong relationships between the structure of the ichthyoplankton assemblage and environmental variables in the Baia River, mainly related to water temperature, dissolved oxygen, rainfall and current speed. Other studies conducted in the upper Paraná River floodplain also identify these variables as determinants for fish egg and larvae abundance and distribution (Cavicchioli, 2000;Nakatani et al, 2001;Baumgartner, 2001;Castro et al, 2002;Nascimento & Nakatani, 2006;Sanches et al, 2006;Baumgartner et al, 2008). Furthermore, studies in other basins highlight the importance of environmental variability in the structuring of fish assemblages, mainly for adult fishes (Rodriguez & Lewis, 1997;Tejerina-Garro et al, 1998;Winemiller et al, 2000;Zeug et al, 2005).…”
Section: Discussionmentioning
confidence: 92%
“…For Saraiva Lake, only the study of Baumgartner et al (2004Baumgartner et al ( , 2008 on fish larvae exists, but its data were collected between 1994 and 1995 (before the construction of the Porto Primavera dam). No studies have been done since the dam closed.…”
Section: Introductionmentioning
confidence: 99%
“…3 In regards to the spatial variation of spawning, the presence of mature females in all three sampled sections suggests that this event took place throughout the entire biotope. It should be stressed that Saraiva Lagoon is an important site for fish larvae survival (Gogola et al 2010), including L. platymetopon (Baumgartner et al 2008). This environment was regarded by Nakatani et al (2004) as a natural nursery, due to its high density of ichthyoplankton kept by the abundant aquatic vegetation in the margins, acting as a source of shelter and food.…”
Section: P T E Ro D O Ra S G Ra N U L O S U S Pa Ra U Ch E N I P T mentioning
confidence: 99%
“…However, studies concerning this species do not exist for Ilha Grande National Park, which is a protected area of the Upper Paraná River lowlands. Of particular interest in this ecosystem is the Saraiva Lagoon, for its relevance in the region physiognomy by being one of the largest lagoons in this park (Schneider 2009), and for its characterization as a natural nursery for fish (Baumgartner et al 2008). Considering that L. platymetopon is one of the most abundant species in lentic environments from the Upper Paraná River floodplain (Agostinho et al 1995, Luiz et al 2004, it is expected that this species is abundant and reproduces in Saraiva lagoon.…”
Section: Introductionmentioning
confidence: 99%
“…The only studies of ichthyoplankton ecology in this region are those of Baumgartner et al (2004Baumgartner et al ( , 2008, who identified the fish spawning areas above Ilha Grande National Park in the upper Paraná River floodplain. Thus, the present study sought to assess fish spawning areas by analysis of spatial and temporal distribution patterns of ichthyoplankton of a region under the effects of water regulation by dams in the Ilha Grande National Park, upper Paraná River floodplain.…”
Section: Introductionmentioning
confidence: 99%