Results 21 to 30 of about 311 (140)

Acute toxicity of the water-soluble fraction of diesel in Prochilodus vimboidesKner (Characiformes: Prochilodontidae) [PDF]

Neotropical Ichthyology, 2013
Diesel oil can be a source of contamination in aquatic environments, mainly as a result of spills. The effects of the water-soluble fraction of diesel (WSF) on Prochilodus vimboideswere assessed. Fish were exposed to three different WSF dilutions for up to 96 h and were compared to a control group.
Dominik Lenz, Adriana Chippari-Gomes, Geisamanda Brandao   +2 more
exaly   +6 more sources

Genetic variability of Prochilodus lineatus (Characiformes, Prochilodontidae) in the upper Paraná river

Genetics and Molecular Biology, 1997
The genetic variability of the "curimba", Prochilodus lineatus, from three locations in the Paraná river basin, was investigated by starch gel electrophoresis. A total of 160 specimens were analyzed for 19 enzymes, 12 of which permitted successful interpretation of electrophoretic patterns.
Renesto Erasmo
exaly   +4 more sources

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

Memorias 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 Adriano, Sarah Arana, Adriano Edson A   +2 more
exaly   +3 more sources

Dimethoate 40% organosphosphorous pesticide toxicity in Prochilodus lineatus (Prochilodontidae, Characiformes) eggs and larvae [PDF]

Brazilian Journal of Biology, 2006
Toxicity tests using early life stages of fish are of great importance in assessing risks to growth, reproduction and survival in polluted environments and are important tools for good environmental monitoring. However, a small number of standard bioassays of this type have been developed in Brazil. Curimbatá (Prochilodus lineatus) is an abundant South
Evaldo Espíndola
exaly   +6 more sources

Hydropower effects on Prochilodus magdalenae (Prochilodontidae) reproduction: evidence from endocrine response

Revista Mvz Cordoba, 2019
Objective. Describe the endocrine response associated with the reproduction of a tropical potamodromous fish under changes in the flow discharge produced by hydropower in an Andean. Materials and methods.
Daniela De Fex-Wolf, Silvia López-Casas, Luz Fernanda Jiménez-Segura   +2 more
doaj   +3 more sources

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

Revista de Ciencias, 2017
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
Nelson Alfonso Vega Contreras, Fabian Galvis, Seir Antonio Salazar Mercado   +2 more
doaj   +5 more sources

DESARROLLO LARVAL DE PROCHILODUS MAGDALENAE (STEINDACHNER, 1879) (PISCES: PROCHILODONTIDAE), RÍO MAGDALENA, COLOMBIA LARVAL DEVELOPMENT OF PROCHILODUS MAGDALENAE (STEINDACHNER, 1879) (PISCES: PROCHILODONTIDAE), MAGDALENA RIVER, COLOMBIA

Actualidades Biológicas, 2010
Se provee una descripción morfológica y morfométrica del desarrollo larval de Prochilodus magdalenae, del río Magdalena, Colombia. Los especímenes fueron obtenidos por desove inducido. Esta especie presenta huevos libres y muy hidratados.
Mauricio Arias-Gallo, Luz F. Jiménez-Segura, María del P. Dorado   +2 more
doaj   +3 more sources

Hybridization, Maternal Inheritance, and Evolutionary Time of Divergence of Endangered Species of <i>Hypancistrus</i> (Siluriformes: Loricariidae) in the Xingu River. [PDF]

Ecol Evol
We uncover recent hybridization dynamics among three endemic Hypancistrus species from the Xingu River, including the critically endangered H. zebra. Mitogenomic analyses reveal unidirectional maternal inheritance and recent evolutionary radiation (< 0.5 Ma), explaining their retained reproductive compatibility.
Kerniske FF, Melo BF, Sousa LM, Degrandi TM, Artoni RF.   +4 more
europepmc   +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. [PDF]

J Fish Biol
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 ...
Yazbeck GM, Nascimento GAS, Carvalho LC, Graciano RCD, de Paula Santos R, Oliveira RS.   +5 more
europepmc   +2 more sources

Lerneosis en alevinos de Prochilodus magdalenae, Prochilodontidae, cultivados en laboratorio

Intropica, 2013
Se describe la infestación de alevinos de la especie Prochilodus magdalenae por parte del gusano ancla (Lernaea cyprinacea). En un lote de peces cultivado en el Laboratorio de Acuicultura de la Universidad del Magdalena se registró una alta mortalidad ...
Jonathan Sarmiento, Adriana Rodríguez
doaj   +1 more source