Results 41 to 50 of about 934 (172)
, 2005 Rhamdia quelen ANSP- 141578 (5 ex. Alc.).
Carlos Donascimiento, John G. Lundberg
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, 2014 Published as part of Litz, Thomas O. & The, Stefan Koerber Introduction, 2014, Check List of the Freshwater Fishes of Uruguay (CLOFF-UY)., pp.
Litz, Thomas O. +1 more
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Aquatic and Terrestrial Invertebrates Support Fish Assemblages of Amazonian Streams
Freshwater Biology, Volume 71, Issue 5, May 2026.ABSTRACT The Amazonian stream network is remarkable not only for its extent but also for its rich fish diversity. These streams are interconnected with the surrounding forests. However, key ecological aspects of Amazonian freshwater ecosystems, such as energy flows and carbon sources sustaining fish assemblages, remain poorly understood. In this study,
Pedro H. S. Basilio +14 more
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, 2017 R. branneri Haseman, 1911 first record for Argentina from the Río Iguazú info published in Casciotta et al. (2016)
Koerber, Stefan +2 more
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Ciência Animal Brasileira, 2010 Fatores proteicos tem sido indentificados no plasma seminal de peixes e mamíferos e, em algumas situações, associados com indicadores de qualidade espermática.
Vinicius Farias Campos +7 more
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The Anatomical Record, Volume 309, Issue 3, Page 663-673, March 2026.Abstract Fasting is a practice in the aquaculture industry that aims to reduce feed costs. This practice can affect the gastrointestinal system of fish. The intestine plays a pivotal role in the nutrition and overall health of fishes. The present study sought to evaluate the effects of fasting and refeeding on body weight, intestine somatic index (ISI),
Karine Nathiele Nogueira Farias +7 more
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, 2017 R. voulezi Haseman, 1911 first record for Argentina from the Río Iguazú info NEW published in Casciotta et al. (2016)
Koerber, Stefan +2 more
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Environmental DNA, Volume 8, Issue 2, March/April 2026.Comparing eDNA metabarcoding and gillnet surveys in a Neotropical reservoir, this study finds that eDNA detects greater species richness yet reveals distinct assemblage structures. The results underscore the value of integrating both methods to achieve comprehensive biodiversity monitoring in hydropower‐impacted ecosystems.
Izabela Santos Mendes +6 more
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Papéis Avulsos de Zoologia, 2018 The brain gross morphology of Rhamdia quelen is described and compared with seven species of six genera of Heptapteridae. Interspecific variation in shape, size, and position of brain subdivisions was observed in all examined species.
Vitor Pimenta Abrahão +2 more
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Activity patterns of South American silver catfish (Rhamdia quelen) [PDF]
Brazilian Journal of Biology, 2006 The South American silver catfish (Rhamdia quelen) is a widely distributed species in Central and South America in areas east of the Andes between Venezuela and the northern parts of Argentina. The bottom dwelling species occurs in lakes and reservoirs as well as in rivers. Between June 2000 and December 2001, sixteen silver catfish were tracked during
Schulz, U. H., Leuchtenberger, C.
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