2007
DOI: 10.1590/s1679-62252007000200018
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Abstract: (Ihering, 1898), a large migratory catfish endemic to the rio da Prata basin, has a fragile conservation status and its ecology is poorly known. We radio-tracked a female jaú with a total length of 1.5 m that was passed upstream of Funil Dam, rio Grande, to describe its migratory movements, habitat use, linear home range, and diel activity. To track the fish, we made five tracking trips in the period from April, 2003 to January, 2004. In addition to the main body of Funil Reservoir, the fish also used a reserv… Show more

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Cited by 18 publications
(4 citation statements)
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“…p.1). These studies, conducted in different reservoirs of the Paran a River Basin, have shown that migratory fish released in reservoirs tend to avoid lentic conditions and migrate rapidly through the impounded area towards upper lotic reaches or lateral tributaries (Agostinho et al , 2007aAlves et al 2007;Antonio et al 2007;Makrakis et al 2007a,b;Silva 2012;Brito and Carvalho 2013). For example, in Porto Primavera Reservoir, one of the largest impoundments in Brazil (2250 km 2 of surface area, 190 km long), Antonio et al (2007) showed that fish released close to the dam travelled long distances in relatively short time intervals, indicating orientation and fast movements towards upper reaches.…”
Section: Empirical Evidencementioning
confidence: 99%
“…p.1). These studies, conducted in different reservoirs of the Paran a River Basin, have shown that migratory fish released in reservoirs tend to avoid lentic conditions and migrate rapidly through the impounded area towards upper lotic reaches or lateral tributaries (Agostinho et al , 2007aAlves et al 2007;Antonio et al 2007;Makrakis et al 2007a,b;Silva 2012;Brito and Carvalho 2013). For example, in Porto Primavera Reservoir, one of the largest impoundments in Brazil (2250 km 2 of surface area, 190 km long), Antonio et al (2007) showed that fish released close to the dam travelled long distances in relatively short time intervals, indicating orientation and fast movements towards upper reaches.…”
Section: Empirical Evidencementioning
confidence: 99%
“…Four decades ago, Bonetto et al (1981) suggested that Z. jahu could carry out long‐scale migrations associated with biological requirements (connectivity of populations, reproduction), as reported for other species of the basin (Avigliano et al, 2020; Bonetto et al, 1981). In contrast, based on a radiotelemetry study of a tagged specimen at the Funil Reservoir (Brazil), Alves et al (2007) reported movements between the main channel of the reservoir and the reservoir‐river transition zone, with a preference for deep habitats (8–21 m) and a short home range (<32 km). However, the rivers that drain into this reservoir (Rio Grande, Mortes and Capivari rivers) are typical of mountainous tropical areas, with shallow and fast waters, which could have limited the extent of migrations.…”
Section: Discussionmentioning
confidence: 98%
“…Based on a tagging study involving only four individuals and only one recapture in the lower Paraná, 706 km south of the tagging site, Bonetto et al (1981) have suggested for the first time a potential mediumscale migratory behavior. In contrast, Alves et al (2007) reported only short-range movement (<35 km) in the upper Paraná based on a radiotelemetry study of a single individual.…”
mentioning
confidence: 98%
“…The available studies for Neotropical region described migratory routes in large rivers of Amazon and Paraná basins (e.g. Goulding, 1980;Alves et al, 2007;Antonio et al, 2007;Fernadez et al, 2007;Tejerina-Garro, Mérona, 2010).…”
Section: Original Articlementioning
confidence: 99%