Results 111 to 120 of about 873 (190)
Ejemplar de raya guacamayaFaunaVichadaLaboratorio Fundación OrinoquíaLaboratorio de pecesRaya guacamayaPotamotrygon schroederiAnimaliaChordataChondrichthyesMyliobatiformesPotamotrygonidaePotamotrygonPuerto ...
Novoa Serna, María del Rosario
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The objective of this study was to compare and correlate the ecology of neonates and young individuals of Potamotrygon wallacei, Potamotrygon motoro and Paratrygon aiereba with regard to their hematological profile and the physicochemical parameters of ...
A. T. Oliveira +7 more
doaj +1 more source
Diversidad genética de potamotrygon motoro en las cuencas del Onrinóco y Amazonas colombiano [PDF]
61 p. Recurso ElectrónicoLa falta de claridad frente a la taxonomía de Potamotrygon motoro y la ausencia de estudios previos de su diversidad genética, hace a la especie vulnerable al ser la segunda especie de raya de agua dulce más extraída y exportada ...
Renza Millán, Mariana
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In this study, two mouse hyperimmune sera were produced, one using extract from the stinger of the stingray Potamotrygon motoro and the other using extract from the dorsal region of the same species and their cross-reactivity with extracts from the ...
Costa, Oscar Tadeu Ferreira da +5 more
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Note about a specimen of the genus Potamotrygon (Chondrichthyes, Potamotrygonidae).
Its deal with the study of a sample of "river ray" of the Potamotrygonidae family procured in the Colastiné river (Midle Paraná)showing an external morphology relating it closely to two species of said family: Potamotrygon falkneri Castex y Maciel, 1963 ...
Martínez Achembach, Guillermo
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A new species of Neotropical freshwater stingray, family Potamotrygonidae, is described from the Rio Nanay in the upper Rio Amazonas basin of Peru. Potamotrygon tigrina, n.
De, Marcelo R. +4 more
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Potamotrygonidae comprises the only group of fish with cartilaginous skeletons that has adaptations to live exclusively in fresh water. The family is widely distributed in South American rivers that drain towards the Atlantic and has great richness, with
Lonardoni, Alessandra Pasian
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<p class="MsoNormal"><span style="font-size: 9pt; font-family: Arial">Se presenta el caso de un paciente de sexo masculino, pescador, lesionado en la región fe. moral por una raya de río (Potamotrygon magdalenne) lo que le produjo una fístula
Rodrigo Girón +1 more
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Levels of Total Mercury and Health Risk Assessment of Consuming Freshwater Stingrays (Chondrichthyes: Potamotrygoninae) of the Brazilian Amazon. [PDF]
Oliveira AT +7 more
europepmc +1 more source
Incluye figuras, tablas y anexosEl género Potamotrygon incluye 33 especies de rayas de rio, pero la identificación de sus especies ha presentado dificultades debido a la escasez de caracteres puntuales para identificar especies, su sistemática ...
Ubaque Bernal, Jhoimar de Jesús
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