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CONICET Digital
Article . 2019
License: CC BY NC SA
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Nuevos registros de la distribución del bagre marino (Genidens Barbus) en la cuenca inferior del río negro; provincia de Río Negro, Argentina

Authors: Tombari, Andrea Diana; Córdoba Gironde, Sofía Belén; Funes, Aimé Itati;

Nuevos registros de la distribución del bagre marino (Genidens Barbus) en la cuenca inferior del río negro; provincia de Río Negro, Argentina

Abstract

El bagre marino, Genidens barbus (Lacépède 1803), es una especie anádroma de gran valor comercial. Estudios realizados sobre esta especie indican que su distribución se limita a estuarios en la zona costera y en la plataforma marítima desde Bahía (Brasil) hasta Bahía San Blas (Argentina). El objetivo del presente trabajo es confirmar la distribución actual del bagre marino, en la cuenca inferior del río Negro, provincia de Río Negro y aportar información respecto a la situación fisiológica de la especie en la región de estudio. Los muestreos se realizaron durante el período comprendido entre octubre de 2017 y marzo de 2018, capturándose 112 ejemplares de G. barbus, con tallas entre 277 mm y 530 mm de longitud total, prevaleciendo los machos en un 98%. La especie se registró desde el Balneario El Cóndor hasta la localidad de Guardia Mitre inclusive. Ninguno de los ejemplares mostró evidencia de estar realizando una migración con fines reproductivos.

The marine catfish, Genidens barbus (Lacépède 1803), is an anadromous species of great commercial value. Studies conducted on this species indicate that its distribution is limited to estuaries in the coastal zone and on the maritime platform from Bahía (Brazil) to Bahía San Blás (Argentina). The objective of this work is to confirm the current distribution of sea catfish, in the lower basin of the rio Negro, province of Río Negro and to provide information regarding the physiological situation of the species in the study región. . The samplings were made during the period between October 2017 and March 2018, 112 specimens of G. barbus were captured, with sizes between 277 mm and 530 mm of total length, with males prevailing by 98 %. The species was recorded from the El Cóndor Beach to the town of Guardia Mitre inclusive. None of the specimens showed evidence of migrating for reproductive purposes.

Fil: Córdoba Gironde, Sofia. Universidad Nacional de Río Negro, Laboratorio de Contaminación Ambiental (CIT Río Negro-CONICET), Sede Atlántica; Argentina.

Fil: Tombari, Andrea Diana. Universidad Nacional de Río Negro, Laboratorio de Contaminación Ambiental (CIT Río Negro-CONICET), Sede Atlántica; Argentina.

Fil: Funes, Aimé Itatí. Universidad Nacional de Río Negro, Laboratorio de Contaminación Ambiental (CIT Río Negro-CONICET), Sede Atlántica; Argentina.

Country
Argentina
Keywords

Patagonia Argentina, Distribución, https://purl.org/becyt/ford/1.6, Bagre Marino, GENIDENS BARBUS, RIO NEGRO, DISTRIBUCION, https://purl.org/becyt/ford/1, Ciencias Exactas y Naturales, CUENCA INFERIOR

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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!
0
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