Results 61 to 70 of about 568 (172)

Exploring ecohydrology through the lens of local fishers in the Bolivian Amazon

Ecosphere, Volume 17, Issue 4, April 2026.
Abstract The natural flow regimes of Andean‐Amazon tributaries play a vital role in sustaining their rich biodiversity and productive local fisheries, but ongoing and proposed alteration of river flow regimes by large dams threatens to negatively impact river ecosystems. Despite its importance, our understanding of how hydrologic variability influences
Lina G. Terrazas‐Villarroel, Jochen Wenninger, Marcelo Heredia‐Gómez, Nick van de Giesen, Michael E. McClain   +4 more
wiley   +1 more source

The Role of Elevation, Connectivity and Land Cover on Migratory and Non‐Migratory Fish Communities in an Amazonian Riverine System

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 2, February 2026.
ABSTRACT Dams and deforestation are key drivers of freshwater biodiversity loss in the Amazon, as they alter river connectivity, water quality and habitat structure. This study investigates how connectivity (Reach Connectivity Index—RCI), elevation and natural land cover influence the diversity and composition of fish assemblages in a highly fragmented
Izaias Médice Fernandes, Hugmar Pains da Silva, Giulianna Rondineli Carmassi, Alberto Luciano Carmassi, Cláudio Henrique Zawadzki, Jhony Vendrusculo, Luzia da Silva Lourenço   +6 more
wiley   +1 more source

Crecimiento y sobrevivencia de post-larvas de bagre rayado (Pseudoplatystoma sp) y yaque (Leiarius marmoratus) consumiendo una dieta seca Crescimento e sobrevivência de pós-larvas do pintado (Pseudoplatystoma sp) e yaque (Leiarius marmoratus) alimentadas com ração seca Adaptation to a commercial diet alters post-larvae growth and development of striped catfish (Pseudoplatystoma sp) and yaque (Leiarius marmoratus)

Revista Colombiana de Ciencias Pecuarias, 2011
El principal desafío de la piscicultura con silúridos consiste en optimizar la producción de alevinos mediante prácticas eficientes de larvicultura y alevinaje.
Lili J Marciales-Caro, Nubia E Cruz-Casallas, John J Díaz-Olarte, Víctor M Medina-Robles, Pablo E Cruz-Casallas   +4 more
doaj  

Rendimentos do processamento e composição química de filés de surubim cultivado em tanques-rede Processing yield and chemical composition of fillets of surubim reared in net cages

Revista Brasileira de Zootecnia, 2008
Neste trabalho foi avaliado o efeito da utilização de três rações comerciais indicadas para alimentação de peixes carnívoros sobre os rendimentos do processamento e a composição de filés de surubim (Pseudoplatystoma sp) cultivados em tanques-rede.
Denilson Burkert, Dalcio Ricardo de Andrade, Rodolfo Nardez Sirol, Ana Lúcia Salaro, José Eduardo de Aracena Rasguido, Célia Raquel Quirino   +5 more
doaj   +1 more source

Dinâmica populacional do Surubim-tigre, Pseudoplatystoma Tigrinum (Valenciennes, 1840) no médio Amazonas (Siluriformes, Pimelodidae) [PDF]

Acta Amazonica, 1999
Dados de comprimento e de captura e esforço da pesca do surubim-tigre (Pseudoplatystoma tigrinum) obtidos durante o período de 1993 a 1996, no Médio Amazonas, foram utilizados para descrever as pescarias e estimar as taxas de crescimento e mortalidade da
Mauro Luis RUFFINO, Victoria Judith ISAAC   +1 more
doaj   +1 more source

Optimizing Total Suspended Solids Mitigation in a Data‐Limited Watershed: A Network‐Based Advection–Reaction Model Applied to the Canal del Dique, Colombia

Water Resources Research, Volume 62, Issue 2, February 2026.
Abstract Total Suspended Solids (TSS) significantly degrade water quality by reducing light penetration and oxygen availability, while facilitating the transport of toxic contaminants. Managing TSS in watersheds requires an understanding of both hydrological connectivity and pollutant dynamics; however, these efforts are significantly constrained by ...
Jesus Guzmán Pérez, Javier Montoya Martinez, David Angulo‐Garcia   +2 more
wiley   +1 more source

Distribution modelling for Neotropical freshwater stingrays Potamotrygon brachyura and Potamotrygon motoro (Myliobatiformes, Potamotrygonidae) in the Uruguay River basin

Journal of Fish Biology, Volume 108, Issue 1, Page 43-56, January 2026.
Abstract This study aimed to identify geographical distribution patterns of the giant short‐tailed river stingray Potamotrygon brachyura and the motoro stingray Potamotrygon motoro in the Uruguay River basin. Data on presence/absence of stingrays were based on fishers' knowledge accessed by interviews through expeditions in Brazil, Argentina and ...
Danilo Araujo Soares Pereira, Roberto E. Reis, Nelson F. Fontoura   +2 more
wiley   +1 more source

Genetic divergence between Pseudoplatystoma corruscans and Pseudoplatystoma reticulatum (Siluriformes: Pimelodidae) in the Paraná River Basin

Brazilian Journal of Biology
Pseudoplatystoma corruscans (Spix and Agassiz, 1829) and Pseudoplatystoma reticulatum (Eingenmann and Eigenmann, 1889) are large migratory catfishes of high biological importance and great commercial value in South America.
TS. Bignotto, AJ. Prioli, SMAP. Prioli, TC. Maniglia, TA. Boni, LC. Lucio, VN. Gomes, RA. Prioli, AV. Oliveira, HF. Júlio-Junior, LM. Prioli   +10 more
doaj   +1 more source

Desempenho produtivo de Pseudoplatystoma corruscans estocados em sistemas de criação: semi-intensivo (viveiro escavado) e intensivo (tanque-rede) Growth performance of Pseudoplatystoma corruscans stocked in rearing systems: semi-intensive (ponds) and intensive (cages)

Ciência Rural, 2011
Objetivou-se comparar o desempenho produtivo e custos de produção de exemplares de pintado, Pseudoplatystoma corruscans, estocados em dois sistemas de criação: semi-intensivo (viveiro escavado, VE) e intensivo (tanque-rede, TR).
Andressa Daniela de Sousa Liranço, Elizabeth Romagosa, João Donato Scorvo-Filho   +2 more
doaj   +1 more source

Pseudoplatystoma tigrinum

Pseudoplatystoma tigrinum (Valenciennes 1840) Distribution Amazon, Orinoco. Notes Barriga (1994), Jácome-Negrete (2013), Jácome-Negrete et al. (2018).
Escobar-Camacho, Daniel, Valdiviezo-Rivera, Jonathan, Carrillo-Moreno, Carolina, Argüello, Pablo, Swing, Kelly   +4 more
openaire   +1 more source