2019
DOI: 10.1038/s41598-019-44869-x
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Abstract: We used a combination of radio and acoustic telemetry to assess the movements of large catfish (Pimelodidae) in the Xingu River, a clearwater tributary of the Amazon River in Brazil. A total of 121 Phractocephalus hemioliopterus and 61 Pseudoplatystoma punctifer were tagged for monitoring within a 685 km segment, including the Belo Monte Hydroelectric Complex (BMHC), between February 2013 and July 2015. Long distance upstream movements were detected for … Show more

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Cited by 16 publications
(16 citation statements)
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“…Moreover, 90% of tagged fish were detected after release, which is higher than reported in a similar study done by Mitamura et al [37] wherein 43% of immature, hatchery-reared Mekong giant catfish P. gigas were detected after release (however, Mitamura et al [37] only used five to seven acoustic receivers across three years in a study area that spanned approximately 600 km). Our detection rate was also just as good or better than a recent study in a large Amazon tributary where 76% and 93.4% of the two catfish species tagged were detected after release [26], and in this study the authors used stationary acoustic and radio receivers as well as mobile tracking. The relative success of our receiver array suggests that acoustic telemetry is a reliable method for tracking fish movements in the Mekong River.…”
Section: Discussionsupporting
confidence: 52%
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“…Moreover, 90% of tagged fish were detected after release, which is higher than reported in a similar study done by Mitamura et al [37] wherein 43% of immature, hatchery-reared Mekong giant catfish P. gigas were detected after release (however, Mitamura et al [37] only used five to seven acoustic receivers across three years in a study area that spanned approximately 600 km). Our detection rate was also just as good or better than a recent study in a large Amazon tributary where 76% and 93.4% of the two catfish species tagged were detected after release [26], and in this study the authors used stationary acoustic and radio receivers as well as mobile tracking. The relative success of our receiver array suggests that acoustic telemetry is a reliable method for tracking fish movements in the Mekong River.…”
Section: Discussionsupporting
confidence: 52%
“…In North America, large acoustic receiver arrays successfully track fish movement over long distances in the Columbia and Fraser rivers and along the Pacific and Atlantic Coasts [69,70]. In the Amazon Basin, catfishes have been tracked over 300 km using combined acoustic and radio telemetry [26]. Given the importance of migratory fish in the Mekong River and the accelerating pace of hydropower development and other pressures, a similar acoustic array, shared between the four countries of the Lower Mekong Basin, would prove extremely beneficial.…”
Section: Discussionmentioning
confidence: 99%
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“…Large catfishes such as Phractocephalus indicate large river channels with long courses permitting reproductive migrations. The only extant species of the genus ( P. hemioliopterus ) migrates distances of ∼300 km (Hahn et al . 2019) during the reproductive season; this type of drainage is absent nowadays in the Guajira Peninsula and the coastal drainages in northern Venezuela and the Maracaibo drainages.…”
Section: Discussionmentioning
confidence: 99%
“…In response, the duration of studies has expanded from hours to multiple years (Hussey et al, 2015). Consequently, aquatic acoustic tracking is increasingly conducted across a broad range of environments, from the Amazon (Hahn et al, 2019) to the Arctic (Kessel et al, 2016), and under environmental conditions that can fluctuate considerably over time. However, assessments of how the performance of receivers varies over time and space have been less frequent (Kessel et al, 2014), risking the misinterpretation of animal behaviour if the frequency of acoustic detections do not directly represent the space-use and activity of tagged animals (Payne et al, 2010).…”
Section: Introductionmentioning
confidence: 99%