Results 51 to 60 of about 2,474 (181)

Phylogeny, ultrastructure, histopathology and prevalence of Myxobolus oliveirai sp. nov., a parasite of Brycon hilarii (Characidae) in the Pantanal wetland, Brazil [PDF]

open access: yes, 2010
This paper presents the morphological, histological and ultrastructural characteristics of Myxobolus oliveirai sp. nov., a parasite of the gill filaments in Brycon hilarii from the Brazilian Pantanal. Out of 216 B. hilariispecimens examined (126 wild and
ADRIANO, Edson A   +8 more
core   +3 more sources

Histophatology and ultrastructure of Henneguya caudalongula sp. n. infecting Prochilodus lineatus (Pisces: Prochilodontidae) cultivated in the state of São Paulo, Brazil

open access: yesMemorias do Instituto Oswaldo Cruz, 2005
The histological and ultrastructural characteristics of a new species of Henneguya and the host reactions to infection by this species are reported. Henneguya caudalongula sp. n.
Edson A Adriano   +2 more
doaj   +1 more source

Population genetics of the freshwater fish Prochilodus magdalenae (Characiformes: Prochilodontidae), using species-specific microsatellite loci [PDF]

open access: yesPeerJ, 2020
Prochilodus magdalenae is a freshwater fish endemic to the Colombian Magdalena-Cauca and Caribbean hydrographic basins. The genetic structure patterns of populations of different members of Prochilodus and the historic restocking of its depleted natural ...
Ricardo M. Landínez-García   +2 more
doaj   +2 more sources

Process catalyzers in Amazonian rivers: large woody debris modifies ecosystem processes across freshwater habitats

open access: yesEcosphere, Volume 9, Issue 1, January 2018., 2018
Abstract Understanding the role of interactions in influencing community structure and ecosystem function is a goal in ecology, and identifying biotic entities that are strong interactors is imperative for setting targeted conservation strategies.
Sebastian A. Heilpern   +1 more
wiley   +1 more source

Fish, Marmelos Conservation Area (BX044), Madeira River basin, states of Amazonas and Rondônia, Brazil. [PDF]

open access: yes, 2007
The present study provides a species list of fish from the Marmelos River Area – BX044 in the states ofAmazonas and Rondônia in northern Brazil. During a Rapid Ecological Assessment (REA) performed in October andNovember of 2003, 133 fish species from ...
Camargo, M., Giarrizzo, T.
core   +1 more source

Trends in Medicinal Uses of Edible Wild Vertebrates in Brazil

open access: yesEvidence-Based Complementary and Alternative Medicine, Volume 2017, Issue 1, 2017., 2017
The use of food medicines is a widespread practice worldwide. In Brazil, such use is often associated with wild animals, mostly focusing on vertebrate species. Here we assessed taxonomic and ecological trends in traditional uses of wild edible vertebrates in the country, through an extensive ethnobiological database analysis. Our results showed that at
Rômulo Romeu Nóbrega Alves   +3 more
wiley   +1 more source

Karyotypic characterization of Prochilodus mariae, Semaprochilodus kneri and S. laticeps(Teleostei: Prochilodontidae) from Caicara del Orinoco, Venezuela

open access: yesNeotropical Ichthyology
Fish of the family Prochilodontidae are considered one of the most important components of commercial and subsistence fishery in freshwater environments in South America. This family consists of 21 species and three genera.
Claudio Oliveira   +3 more
doaj   +1 more source

Reproductive Ecology of Prochilodus brevis an Endemic Fish from the Semiarid Region of Brazil

open access: yesThe Scientific World Journal, Volume 2012, Issue 1, 2012., 2012
The commercially important migratory fish Prochilodus brevis is from the Neotropical region, and understanding the reproductive ecology of this potamodromous fish is essential for its conservation and management. This study investigated the length‐mass relationship, sex ratio, length at first gonadal maturity, gonadal development stages, gonadosomatic ...
Liliane de Lima Gurgel   +3 more
wiley   +1 more source

Composición de especies y diversidad de peces en tres cuerpos de agua en la cuenca alta del río Itaya

open access: yesCiencia Amazónica (Iquitos), 2013
En el presente trabajo se describe sobre la diversidad en tres cuerpos de agua de la cuenca alta del río Itaya, concesión de conservación de la universidad científica del Perú, en una evaluación  rápida en los meses de junio y julio del 2012.
Javier del Águila Chávez   +3 more
doaj   +3 more sources

Relaciones evolutivas de los peces Prochilodus reticulatus y Prochilodus magdalenae (Characiformes: Prochilodontidae) [PDF]

open access: yesRevista de Ciencias, 2018
Se realizó un estudio filogenético entre las especies Prochilodus reticulatus (Valenciennes, 1850) y P. magdalenae (Steindachner, 1879) de gran valor socioeconómico en el país. Inicialmente, las especies fueron colectadas para la extracción del ADN y su posterior caracterización mediante RAPD-PCR para establecer sus relaciones filogenéticas empleando ...
Vega Contreras, Nelson Alfonso   +2 more
openaire   +4 more sources

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