2017
DOI: 10.1007/s10530-017-1623-x
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Introductions of non-native fishes into a heavily modified river: rates, patterns and management issues in the Paranapanema River (Upper Paraná ecoregion, Brazil)

Abstract: 19Understanding the pathways and impacts of non-native species is important for helping 20 prevent new introductions and invasions. This is frequently challenging in regions 21 where human activities continue to promote new introductions, such as in Brazil, where 22 aquaculture and sport fishing are mainly dependent on non-native fishes. Here, the non-23 native fish diversity of the Paranapanema River basin of the Upper Paraná River 24 Ecoregion, Brazil was quantified fully for the first time. This river has b… Show more

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Cited by 42 publications
(31 citation statements)
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“…However, our results did not detect a difference between lotic and lentic environments in the Araguari cascade system. One explanation for this would be that dams modify both environments, and the increase of non‐native fish species richness over time is a trend observed in many modified ecosystems (Garcia, Britton, Vidotto‐Magnoni, & Orsi, ; Ortega, Júlio, Gomes, & Agostinho, ; Poff, Olden, Merritt, & Pepin, ). Moreover, another possibility is that connections between the reservoirs in Araguari River by short lotic stretches facilitate the spread of non‐native species across the landscape.…”
Section: Discussionmentioning
confidence: 99%
“…However, our results did not detect a difference between lotic and lentic environments in the Araguari cascade system. One explanation for this would be that dams modify both environments, and the increase of non‐native fish species richness over time is a trend observed in many modified ecosystems (Garcia, Britton, Vidotto‐Magnoni, & Orsi, ; Ortega, Júlio, Gomes, & Agostinho, ; Poff, Olden, Merritt, & Pepin, ). Moreover, another possibility is that connections between the reservoirs in Araguari River by short lotic stretches facilitate the spread of non‐native species across the landscape.…”
Section: Discussionmentioning
confidence: 99%
“…The increase of fish‐cage farming in Jurumirim is estimated at 2460 t year −1 , considering the current rate of production and growth potential relative to new aquaculture parks, in which the Nile tilapia Oreochromus nilotucus (L. 1758) is the main farmed species (Montanhini et al ., ). Data on intentional fish stocking indicate 7,102,057 individuals belonging to six non‐native fish species ( Astronotus crassipinnis (Heckel 1840), Cyprinus carpio L. 1758, Sorubim lima (Bloch & Schneider 1801), Schizodon borellii (Boulenger 1900), Triportheus angulatus (Spix & Agassiz 1829), O. niloticus and Hoplias lacerdae Miranda Ribeiro 1908) were released into the reservoir between 1978 and 1992 (Garcia et al ., ).…”
Section: Introductionmentioning
confidence: 97%
“…The increase of fish-cage farming in Jurumirim is estimated at 2460 t year −1 , considering the current rate of production and growth potential relative to new aquaculture parks, in which the Nile tilapia Oreochromus nilotucus (L. 1758) is the main farmed species (Montanhini et al, 2015). (Garcia et al, 2017).…”
Section: Introductionmentioning
confidence: 99%
“…The species is also considered a trophic generalist with a wide food spectrum (Hahn, Almeida, & Luz, 1997). Invasive populations are now present in both free‐from‐dam and damming environments within the Upper Paraná basin (Garcia, Britton, Vidotto‐Magnoni, & Orsi, 2018; Júlio Júnior et al, 2009; Tonella et al, 2018). The lotic environments are in the floodplain and are characterized by high levels of environmental heterogeneity (Agostinho, 1997), whereas the damming environments are strongly influenced by hydroelectric dams (Garcia et al, 2018).…”
Section: Introductionmentioning
confidence: 99%