Results 181 to 190 of about 338,087 (384)

High frequency cyclicity and chemostratigraphy of the Tagatiya Guazu Formation, Itapucumi Group, Paraguay: evidence of the Ediacaran-Cambrian transition

, 2022
Gabriel Correa Antunes
openalex   +1 more source

Natural history notes on Pampas Fox Lycalopex gymnocercus (Mammalia: Carnivora: Canidae) in the Paraguayan Chaco

, 2023
Paul Smith, Rebecca L. Smith
openalex   +2 more sources

Assessing the population structure of Plagioscion squamosissimus (Teleostei, Perciformes, Sciaenidae) from the São Francisco River, Bahia, Brazil, using body morphology and otolith shape signatures

Journal of Fish Biology, EarlyView.
Abstract The south American silver croaker, Plagioscion squamosissimus, holds significant importance for the artisanal fisheries in the sub‐middle and lower courses of the São Francisco River, located in northeastern Brazil. To investigate the population structure of this species along its longitudinal profile, a total of 150 individuals (50 fish per ...
F. L. Freitas, N. S. Pereira, P. B. Pinheiro, R. Schroeder, A. T. Correia   +4 more
wiley   +1 more source

Proyecto de Responsabilidad Social Universitaria Full Day: Curso de capacitación para propietarios de posadas turísticas de Paraguay, 2023

, 2023
Chap Kau Kwan Chung, Hernán Isidro Sutty Segovia, María Ibarra, María Jorgelina Sosa Viera, Larizza Tatiana Fariña Valenzuela, Claudia María Zalazar Echauri, María Jorgelina Sosa Viera, Universidad Americana, Paraguay, Larizza Tatiana Fariña Valenzuela, Universidad Americana, Paraguay, Claudia María Zalazar Echauri, Universidad Americana, Paraguay   +11 more
openalex   +2 more sources

A new species of Peckoltia (Siluriformes, Loricariidae) from the rapids of the Rio Tocantins‐Araguaia basin, Brazil

Journal of Fish Biology, EarlyView.
Abstract Here, we describe a new species of Peckoltia (Loricariidae; Hypostominae) from the rapids of the Rio Tocantins‐Araguaia basin, previously identified as Peckoltia vittata, using an integrative taxonomy approach. The new species is distinguished from congeners by ventral region presenting diffuse stripes on surface, not presenting spots or ...
Felipe Arian Andrade de Araújo, Marlon Felipe Chumber Ferreira, Aline Nascimento Silva, Wolmar Benjamin Wosiacki   +3 more
wiley   +1 more source

New insights into Ituglanis (Siluriformes: Trichomycteridae) diversity in Bahia State, eastern Brazil: Description of a new species and conservation status reappraisal

Journal of Fish Biology, EarlyView.
Abstract The northeastern Atlantic Forest of Brazil harbours a remarkable diversity of species of Trichomycteridae, many of which remain poorly understood. This study describes a new species of Ituglanis, endemic to the Ribeirão São Roque, a stream tributary of Rio Piabanha, an affluent of Rio Colônia basin, Bahia State, Brazil.
Paulo J. Vilardo, Axel M. Katz, Wilson J. E. M. Costa   +2 more
wiley   +1 more source

Linking rivers, mixing faunas: How artificial connectivity between the Middle and Upper Paraná River basins shapes fish diversity in a tributary of the Itaipu Reservoir, Brazil

Journal of Fish Biology, EarlyView.
Abstract This work aimed to investigate the distribution and occurrence of fish species along the São Francisco Falso Braço Norte (SFFBN) River basin, a tributary of the Middle Paraná River basin now artificially connected to the Upper Paraná ecoregion, to evaluate how such connectivity may affect the biogeographic distribution and regional composition
Lucas E. P. Kampfert, João C. Maicrovicz, Daniel R. Blanco, Denise Lange, Carla S. Pavanelli, Heleno Brandão   +5 more
wiley   +1 more source

Frecuencia y características clínicas de las neumonías adquiridas en la comunidad que requieren hospitalización

Revista Científica Ciencias de la Salud, 2019
Introducción:La neumonía adquirida en la comunidad (NAC) tiene una alta tasa de incidencia y mortalidad en los ancianos,debido a la presencia de comorbilidades y la mayoría de ellos requiere hospitalización.Objetivos ...
Pablo Gómez Venialgo, Johana Torales Montiel, Fernando Ferreira Mendieta, Sebastián Jara Rossi, Edgar Ortega Filartiga   +4 more
doaj  

The Frisch Elasticity in the Mercosur Countries: A Pseudo-Panel Approach [PDF]

This paper provides estimates for the Mercosur countries of the Frisch elasticity – i.e., the elasticity of substitution between worked hours and real wages holding constant the marginal utility of wealth.
González, Roberto, Sala, Hector
core  

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