Results 81 to 90 of about 47,996 (245)

CLOFFAR - update 3 - supplement to Checklist of the Freshwater Fishes of Argentina [PDF]

, 2017
In May 2016 we have published the second update to CLOFFAR and in these few months a total of 22 changes have summed up. The total number of fishes known from the freshwaters of Argentina has increased to 538, caused by one new Hoplias and 13 first ...
Koerber, Stefan, Litz, Thomas O., Mirande, Juan Marcos   +2 more
core  

Use of otolith strontium:calcium ratio as indicator of seasonal displacements of the silverside (Odontesthes bonariensis) in a freshwater-marine environment [PDF]

, 2013
Strontium:calcium ratios were measured in sagittal otoliths of silverside (Odontesthes bonariensis) from a freshwater-marine environment (Paraná River Delta and River de la Plata River, South America) in order to understand its seasonal movements ...
Avigliano, Esteban, Volpedo, Alejandra
core   +2 more sources

A fractal pattern of hierarchical genetic population structure in mixed stocks across fish segregated by dams revealed by genomic resources for curimba Prochilodus lineatus

Journal of Fish Biology, EarlyView.
Abstract Genomic resources, new microsatellite markers and a novel observation of a fractal pattern in the genetic population structure are presented for curimba, Prochilodus lineatus, a freshwater migratory model species of South America. Our main goals were to investigate the presence of mixed fish stocks and the effects of damming‐induced ...
Gabriel M. Yazbeck, Gésica Aparecida Santana Nascimento, Leiliane Campos Carvalho, Raíssa Cristina Dias Graciano, Rosiane de Paula Santos, Rafael Sachetto Oliveira   +5 more
wiley   +1 more source

Financial comparisons of the artisanal fisheries in Urubupungá Complex in the middle Paraná River (Brazil)

Brazilian Journal of Biology
The main objective of this study was a bio-economic survey of artisanal fishing so as to compare average profit of the fishermen, in two different environments (reservoirs and river) and seasons (dry and rainy).
S. A. Ceregato, M. Petrere Jr.
doaj   +1 more source

Drift of ichthyoplankton in two channels of the Paraná River, between Paraná and Mato Grosso do Sul states, Brazil

Brazilian Archives of Biology and Technology, 1999
Analysis of drift of ichthyoplankton in two channels in the River Paraná, Brazil, were made. Sampling was undertaken from October 1995 to April 1996 during nychthemeral cycles.
Andréa Bialetzki, Paulo Vanderlei Sanches, Maristela Cavicchioli, Gilmar Baumgartner, Ricardo Pereira Ribeiro, Keshiyu Nakatani   +5 more
doaj   +1 more source

Redescription of Hypoptopoma inexspectata (Holmberg, 1883), with notes on its anatomy (Siluriformes: Loricariidae). [PDF]

, 2001
Hypoptopoma inexspectata is diagnosed and redescribed based on the examination of additional material and comparison with its congeners. This poorly known hypoptopomine species is distributed in the Paraguay and Paraná river draínages.
Aquino, Adriana E., Miquelarena, Amalia M.   +1 more
core   +1 more source

Efectos de la ruptura digital en prácticas de medios populares en Brasil [PDF]

, 2018
This article discusses the digital disruption in popular media practices in Brazil. It is based on interviews conducted from 2014 to 2016 with 55 communicators attached to 20 social movements and community associations all over the country.
Suzina, Ana Cristina
core   +2 more sources

Deciphering the complex life cycle and partial migration of an ecological engineer and critical Neotropical fishery species, Prochilodus costatus

Journal of Fish Biology, EarlyView.
Abstract Understanding complex migration patterns, including drivers of partial migration and habitat use, is challenging but essential for conservation, as it determines a species' adaptative capacity in the face of environmental change and anthropogenic threats.
Alexandre Peressin, João de Magalhães Lopes, Francisco Ricardo Andrade Neto, Gilmara Junqueira Machado, Carlos Bernardo Mascarenhas Alves, Luis David Solis Murgas, Paulo Santos Pompeu   +6 more
wiley   +1 more source

The role of discharge variability in determining alluvial stratigraphy [PDF]

, 2015
We illustrate the potential for using physics-based modeling to link alluvial stratigraphy to large river morphology and dynamics. Model simulations, validated using ground penetrating radar data from the Río Paraná, Argentina, demonstrate a strong ...
Amsler, Mario L., Ashworth, Philip J., Best, James L., Hardy, Richard J., Lane, Stuart N., Nicholas, Andrew P., Orfeo, Oscar, Parsons, Daniel R., Reesink, Arnold J.H., Sambrook Smith, Gregory H., Sandbach, Steven D., Simpson, Christopher J., Szupiany, Ricardo N.   +12 more
core   +2 more sources

Amazonian drought of 2023: Environmental conditions relevant to fishes

Journal of Fish Biology, EarlyView.
Abstract This paper provides a platform for the following studies within this Special Issue. ‘Ecophysiology of fishes in the two great tributaries of the Amazon in the Anthropocene’. It documents the water quality conditions and accompanying zooplankton community structure and biomass relative to fish health in the Rio Negro and Rio Solimões during the
Ora E. Johannsson, Thiago L. Nascimento, Helen Agasild, Priit Zingel, Rafael M. Duarte, Gudrun de Boeck, Anne Cremazy, Jhonatan Mota da Silva, Carolyn Morris, Chris M. Wood, Adalberto L. Val   +10 more
wiley   +1 more source