Results 81 to 90 of about 563,418 (218)

A new endemic pearl cichlid of the ‘Geophagus’ brasiliensis (Cichliformes: Cichlidae) species group from the Piranga River, upper Doce River basin, southeastern Brazil

open access: yesJournal of Fish Biology, EarlyView.
Abstract A new species of pearl cichlid of the ‘Geophagus’ brasiliensis species group, endemic to the Piranga River, a major tributary of the upper Doce River basin in the state of Minas Gerais, southeastern Brazil, is herein described. The new species is delimited using an integrative approach, with molecular‐based species delimitation methods coupled
Cidimar E. de Assis   +7 more
wiley   +1 more source

Argulus juparanensis (BRANCHIURA) EM RAIAS Potamotrygon spp. (POTAMOTRYGONIDAE) NA FOZ DO RIO AMAZONAS (BRASIL)

open access: yes, 2015
Este estudo descreve a ocorrencia de Argulus juparanensis Lemos de Castro, 1950 (Argulidae) na superficie corporal de Potamotrygon constellata , Potamotrygon dumerilii , Potamotrygon motoro , Potamotrygon orbignyi , Potamotrygon scobina e Potamotrygon sp.
Cecile Souza Gama   +4 more
semanticscholar   +1 more source

A new Hyphessobrycon (Characiformes: Acestrorhamphidae) of the Hyphessobrycon agulha lineage of Hyphessobryconinae from the lower Aripuanã basin, Brazil, with comments about the lineage

open access: yesJournal of Fish Biology, EarlyView.
Abstract A new species of Hyphessobrycon is described from a tributary of Rio Jatuarana, lower Rio Aripuanã basin, Rio Madeira basin, Apuí, Amazonas. The new species is part of the Hyphessobrycon agulha lineage, with the typical midlateral narrow black stripe immediately followed dorsally by an iridescent stripe.
Tiago C. Faria   +3 more
wiley   +1 more source

Feeding ecology of immature Lithodoras dorsalis (Valenciennes, 1840) (Siluriformes: Doradidae) in a tidal environment, estuary of the rio Amazonas

open access: yes, 2015
Studies of feeding ecology are important for the evaluation of interactive processes in fish communities. This study evaluated the feeding ecology of Lithodoras dorsalis (Doradidae) from streams within the Amazon estuary delta (Brazil), a macro-tidal ...
T. A. P. Barbosa, R. Barthem, L. Montag
semanticscholar   +1 more source

Nuevo descubrimiento del gran Río de las Amazonas (1641), de Cristóbal de Acuña, e Viagem (1746), de Pedro de Santo Eliseu: história, poesia e política sobre o Rio das Amazonas

open access: yesArtCultura, 2019
Este trabalho propõe-se a discutir dois textos: a relação intitulada Nuevo descubrimiento del gran Río de las Amazonas (1641), de Cristóbal de Acuña, e a epopeia Viagem (1746), de Pedro de Santo Eliseu.
Marcelo Lachat
doaj   +1 more source

Integrative taxonomy reveals two new species of whiptail catfishes Loricaria (Siluriformes: Loricariidae) from northeastern Brazil

open access: yesJournal of Fish Biology, EarlyView.
Abstract Two new species of whiptail catfish, Loricaria (Siluriformes: Loricariidae), were discovered in the Munim and Itapecuru river basins, Maranhão State, northeastern Brazil, through an integrative taxonomic approach combining morphology and mitochondrial DNA.
Ananda. C. Serejo‐Saraiva   +4 more
wiley   +1 more source

IMPACTO DA INVASÃO DA TILÁPIA-DO-NILO SOBRE ESPÉCIES DE CICHLIDAE NATIVOS EM TRIBUTÁRIO DO RIO AMAZONAS, BRASIL

open access: yes, 2014
This study investigated for the first time impact caused by the invasion of Oreochromis niloticus on populations of native Cichlidae species from Igarape Fortaleza hydrographic basin, a tributary of the Amazonas River in Amapa State, Northern Brazil.
L. S. Bittencourt   +3 more
semanticscholar   +1 more source

The Effect of Brazil's Family Health Program on Cognitive Skills

open access: yesOxford Bulletin of Economics and Statistics, EarlyView.
ABSTRACT This paper examines the effect of Brazil's Family Health Program (Programa Saude da Familia, FHP) on cognitive skills (measured by test scores) of fifth‐grade students. We use biennial data from national exams between 2007 and 2015, and variation in the FHP implementation date across municipalities, birth cohort, and test year to identify the ...
Pinar Mine Gunes, Magda Tsaneva
wiley   +1 more source

Early Warning Systems and Emergency Declarations During Brazil's Largest Dengue Outbreak

open access: yesTropical Medicine &International Health, EarlyView.
ABSTRACT Objectives Early warning systems (EWSs) are essential for alert, detection, and response to potential public health emergencies. Brazil's 2024 dengue epidemic, the largest ever recorded, offers a critical case for assessing correspondence between timely epidemic risk detection and health governance responsiveness.
Lorena Guadalupe Barberia   +10 more
wiley   +1 more source

Measuring the specific care management experience of patients with type 2 diabetes mellitus in the Amazon region of Brazil

open access: yesRural and Remote Health
Introduction: The present study aimed to determine whether there is an association between individual characteristics, including sociodemographic, clinical, behavioral, and functional performance variables, and the Patient Assessment of Chronic Illness ...
Johrdy da Costa Braga   +6 more
doaj   +1 more source

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