2017
DOI: 10.1590/s2179-975x10216
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Abstract: Aim: This study uses the abundance of fish eggs and larvae to evaluate the importance of the main channel of the Paraná River and the adjacent areas of the floodplain, in the last dam-free stretch in the Brazilian territory, for the spawning and development of fish of different reproductive guilds, in order to obtain subsidies to assist in the management and conservation policies of this area, focusing on the maintenance of dam-free areas. Methods: Data were taken quarterly from August 2013 to May 2015, in 25 … Show more

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Cited by 21 publications
(14 citation statements)
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“…Species that migrate long distances are often the most affected by barriers such as dams (Esguícero & Arcifa, ; Hoeinghaus et al, ). However, some studies have shown that species migrating long distances can maintain viable populations in lotic areas, upstream of dams or in dam‐free tributaries (Baumgartner, Nakatani, Gomes, Bialetzki, & Sanches, ; Makrakis et al, ; Nobile et al, ; Silva et al, ). Nowadays, most Brazilian reservoirs display only three large migratory species (Agostinho et al, ; Nobile et al, ), in contrast to the dozens found in the pristine environment, that occurred predamming.…”
Section: Discussionmentioning
confidence: 99%
“…Species that migrate long distances are often the most affected by barriers such as dams (Esguícero & Arcifa, ; Hoeinghaus et al, ). However, some studies have shown that species migrating long distances can maintain viable populations in lotic areas, upstream of dams or in dam‐free tributaries (Baumgartner, Nakatani, Gomes, Bialetzki, & Sanches, ; Makrakis et al, ; Nobile et al, ; Silva et al, ). Nowadays, most Brazilian reservoirs display only three large migratory species (Agostinho et al, ; Nobile et al, ), in contrast to the dozens found in the pristine environment, that occurred predamming.…”
Section: Discussionmentioning
confidence: 99%
“…The first rains act as a cue for the formation of schools and migrations upstream to search for the best environmental conditions for spawning (Vazzoler and Menezes, 1992;Cowx et al, 1998;Suzuki et al, 2004). The migratory fish usually spawn in the uppermost regions of the basin and use flooded area, dozens of kilometers downstream, as nurseries for their early stages of development (Nakatani et al, 2001;Wantzen and Junk, 2006;Silva et al, 2017;Rosa et al, 2018). For these species, long-lasting floods in the warmer season can maximize recruitment (Gomes and Agostinho, 1997;Oliveira et al, 2015), providing shelter and food for more extended periods.…”
Section: Introductionmentioning
confidence: 99%
“…Frota et al 2016, Froehlich et al 2017, Cavalli et al 2018, Ota et al 2018, Jarduli et al 2020. The Paranapanema River, a major tributary of the upper Paraná River, is currently fragmented by several hydroelectric dams (Britto & Carvalho 2006), and therefore, its dam-free tributaries are of great importance for the maintenance of fish species (Hoffmann et al 2005, Silva et al 2017, Galindo et al 2019, Lansac-Tôha et al 2019. Besides, the Cinzas River is an important tributary of the Paranapanema River basin, which is the main watercourse of the region known as "Norte Pioneiro" (Pioneer North) of the Paraná state, and it is essential for maintaining ichthyofauna biodiversity of the Capivara reservoir (Vianna & Nogueira 2008, Orsi 2010.…”
Section: Introductionmentioning
confidence: 99%