Results 41 to 50 of about 864 (141)
Brazilian Journal of Biology, 2009 Flood pulses affect floodplain enrichment via the incorporation of nutrients and terrestrial biomass. As a result, they positively affect the body condition of aquatic organisms.
KDG. Luz-Agostinho +4 more
doaj +1 more source
Zonation longitudinale du peuplement ichtyque du fleuve Sinnamary (Guyane Française) [PDF]
, 1988 Le Sinnamary est un fleuve de moyenne importance (bassin de 6565 km2) de la Guyane Française. A l'aide de divers critères d'ordre géologique, pédologique, hydrologique et phytosociologique, nous avons pu diviser le fleuve en 3 zones distinctes : la ...
Boujard, T., Rojas-Beltran, R.
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Structure of the parasites communities in two Erythrinidae fish from Amazon river system (Brazil). [PDF]
, 2017 This study compared the parasite communities of Hoplias malabaricus and Hoplerythrinus unitaeniatus from Amazon river system. Hoplias malabaricus were infected by Ichthyophthirius multifiliis, Piscinoodinium pillulare, Tetrahymena sp., Urocleidoides ...
ALCÂNTARA, N. M., TAVARES-DIAS, M.
core +1 more source
Les stratégies de reproduction et les premiers stades de vie des poissons du fleuve Sinnamary (Guyane française) : une revue bibliographique [PDF]
, 1994 Le barrage hydro-électrique de Petit-Saut, construit par Electricité de France sur le fleuve Sinnamary en Guyane française, a été fermé en janvier 1994. Cet ouvrage a profondément modifié un milieu dont les éléments avaient co-évolué depuis de nombreuses
Ponton, Dominique, Tito de Morais, Luis
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Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 35, Issue 12, December 2025.ABSTRACT Understanding the impact of human activities on fish communities is critical for the effective conservation of Amazonian ecosystems. In this study, we sampled environmental DNA (eDNA) from 17 sites (lakes and rivers) in two Peruvian national reserves, Pacaya‐Samiria and Allpahuayo‐Mishana, using a metabarcoding approach with four genetic ...
B. Prat +6 more
wiley +1 more source
Fish, Corumbataí and Jacaré-Pepira river basins, São Paulo State, Brazil [PDF]
, 2006 Fish were studied in two river basins (Corumbataí and Jacaré-Pepira) subjected to strong human pressure, in the interior of the State of São Paulo, southeastern Brazil.
Braga, F. M. S., Gomiero, L. M.
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The Role of Fish in Nutrient Recycling Across a Conservation Gradient in Neotropical Streams
Freshwater Biology, Volume 70, Issue 10, October 2025.ABSTRACT Fish play a crucial role in nutrient recycling within various aquatic ecosystems, but how their contribution varies across streams with different levels of disturbance remains poorly understood. In our study, we investigated the role of fish assemblage in nutrient cycling within eight Neotropical streams characterised by varying degrees of ...
Ronny José de Morais +3 more
wiley +1 more source
Fishes from the rio da Dona, a threatened environment in the Recôncavo Sul basin, Bahia, Brazil [PDF]
, 2020 The rio da Dona is an important water body in the Recôncavo Sul basin used as a water supply for the neighboring towns and for agriculture, recreation and subsistence fishing. The knowledge about the ichthyofauna of this river is scarce.
Ferreira, Marco Tulio Oliveira +3 more
core +3 more sources
Environmental DNA, Volume 7, Issue 4, July–August 2025.Using eDNA metabarcoding, we assessed fish diversity in isolated sinkholes in southern Brazil, uncovering signs of local extinction and species persistence. This approach offers a non‐invasive tool for biodiversity assessment and informs conservation efforts in unique karst environments.
Luz E. De la Ossa‐Guerra +5 more
wiley +1 more source
Estrutura trófica da comunidade de peixes de riachos da porção oeste da bacia do Alto Paraná. [PDF]
, 2013 O conhecimento ecológico de peixes de riachos brasileiros ainda possui lacunas. Apesar dos muitos estudos ictiológicos na Bacia do Alto Rio Paraná, poucos foram conduzidos em córregos da região Centro-Oeste, uma das mais ameaçadas pela expansão ...
COSTA-PEREIRA, R. +2 more
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