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Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales
Article . 2022 . Peer-reviewed
License: CC BY NC ND
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Caracterización morfológica de los estadios embrionarios de la raya dulceacuícola Potamotrygon magdalenae (Elasmobranchii: Potamotrygonidae)

Authors: Sergio Antonio Lizcano-Gutiérrez; Martha Patricia Ramírez-Pinilla;

Caracterización morfológica de los estadios embrionarios de la raya dulceacuícola Potamotrygon magdalenae (Elasmobranchii: Potamotrygonidae)

Abstract

Potamotrygon magdalenae, una raya perteneciente a la familia Potamotrygonidae distribuida en la cuenca del río Magdalena, es considerada de muy alta prioridad para la investigación en el Plan de Acción Nacional para la Conservación y Manejo de Tiburones, Rayas y Quimeras de Colombia. Los estudios de desarrollo embrionario en condrictios son escasos debido a la dificultad para obtener el material biológico y son pocas las tablas de desarrollo para las especies de rayas. En este estudio se hizo la caracterización morfológica macroscópica de una serie de estadios embrionarios de P. magdalenae. Se obtuvieron 30 individuos entre embriones, fetos y neonatos producto de disecciones y abortos de hembras grávidas capturadas mediante pesca incidental. En términos generales, el desarrollo embrionario de esta especie sigue los patrones conocidos para los demás condrictios, aunque con pequeñas diferencias en la tasa de absorción del saco vitelino y la ausencia de filamentos branquiales sobresalientes de los espiráculos, lo que puede relacionarse con su viviparidad y matrotofia uterina.

Keywords

Q1-390, Science (General), Potamotrygon, Embriones, Embriogénesis, Neonatos, Faríngula

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Average
Average
Average
gold