Predation by the nonnative rainbow trout, oncorhynchus mykiss (Walbaum 1792), on the native biota from freshwater environment of the central Andes (Argentina)

Autores
Rios, Juan Manuel
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This study aimed to examine the impact of the nonnative rainbow trout Oncorhynchus mykiss on the native biota that inhabits freshwater environments of the central Andes, Argentina. To assess the predation pressure on native Andean vertebrates and invertebrates, the stomach contents were taken from rainbow trout caught at three Andean sites. Results showed that the major prey items were the native torrent catfish Hatcheria macraei (100% in diet), Elmidae coleopterans (23%), and the native crab Aegla affinis (38%) in the rainbow trout stomachs collected from Cipolletti Dam (North zone), Yaucha River (Middle zone), and Vaina Stream (South zone), respectively. This preliminary study exhibits the predation pressure of the rainbow trout on native Andean species and suggests that policies are necessary to control the release of fry of this exotic salmonid in the Andes region.
Depredación de la trucha arcoíris, Oncorhynchus mykiss, sobre la biota nativa de ambientes de agua dulce de los Andes centrales (Argentina). Este estudio tuvo como objetivo examinar el impacto de la trucha arcoíris, Oncorhynchus mykiss, sobre la biota nativa que habita en ambientes de agua dulce de los Andes centrales, Argentina. Para abordar esto, se tomó el contenido estomacal de truchas arcoíris capturadas en tres sitios para evaluar la presión de depredación sobre los vertebrados e invertebrados andinos nativos. Los resultados mostraron que las principales presas fueron el bagre nativo Hatcheria macraei (100% en la dieta), los coleópteros Elmidae (23%) y el cangrejo nativo Aegla affinis (38%) presente en los estómagos de las truchas arcoíris capturadas en el dique Cipolletti (zona Norte), el Río Yaucha (zona Intermedia) y el Arroyo Vaina (zona Sur), respectivamente. Este estudio preliminar muestra la presión de depredación de la trucha arcoíris sobre las especies nativas andinas y sugiere que se apliquen políticas de control para la liberación de alevines de este salmónido exótico en Andes centrales.
Acest studiu a avut ca scop examinarea impactului păstrăvului curcubeu non-nativ Oncorhynchus mykiss asupra biotei native care populează mediile dulcicole din Anzii centrali, Argentina. Pentru atingerea acestui scop, a fost prelevat conținutul stomacal de la indivizii de păstrăv curcubeu capturați în trei situri andine pentru a evalua presiunea de prădător asupra vertebratelor și nevertebratelor andine native. Rezultatele au arătat că principalele specii pradă au fost somnul nativ Hatcheria macraei (100% în dietă), coleoptere din familia Elmidae (23%) și crabul nativ Aegla affinis (38%) găsite în stomacurile indivizilor de păstrăv curcubeu colectați de la barajul Cipolletti (zona de nord), râul Yaucha (zona de mijloc) și respectiv pârâul Vaina (zona de sud). Acest studiu preliminar prezintă presiunea de prădător a păstrăvului curcubeu asupra speciilor native andine și sugerează că sunt necesare reglementări pentru a controla eliberarea alevinilor acestui salmonid exotic în Anzii Centrali.
Fil: Rios, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Medicina y Biología Experimental de Cuyo; Argentina
Materia
ANDES
ONCORHYNCHUS MYKISS
RAINBOW TROUT
PREDATION
NATIVE BIOTA
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/173105

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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Predation by the nonnative rainbow trout, oncorhynchus mykiss (Walbaum 1792), on the native biota from freshwater environment of the central Andes (Argentina)Depredación por la trucha arcoíris no nativa, Oncorhynchus mykiss (Walbaum, 1792), sobre la biota nativa del ambiente dulceacuícola de los Andes centrales (Argentina)Prădătorismul păstrăvului curcubeu non-nativ, Oncorhynchus mykiss, asupra biotei native din mediul dulcicol din Anzii centrali (Argentina)Rios, Juan ManuelANDESONCORHYNCHUS MYKISSRAINBOW TROUTPREDATIONNATIVE BIOTAhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1This study aimed to examine the impact of the nonnative rainbow trout Oncorhynchus mykiss on the native biota that inhabits freshwater environments of the central Andes, Argentina. To assess the predation pressure on native Andean vertebrates and invertebrates, the stomach contents were taken from rainbow trout caught at three Andean sites. Results showed that the major prey items were the native torrent catfish Hatcheria macraei (100% in diet), Elmidae coleopterans (23%), and the native crab Aegla affinis (38%) in the rainbow trout stomachs collected from Cipolletti Dam (North zone), Yaucha River (Middle zone), and Vaina Stream (South zone), respectively. This preliminary study exhibits the predation pressure of the rainbow trout on native Andean species and suggests that policies are necessary to control the release of fry of this exotic salmonid in the Andes region.Depredación de la trucha arcoíris, Oncorhynchus mykiss, sobre la biota nativa de ambientes de agua dulce de los Andes centrales (Argentina). Este estudio tuvo como objetivo examinar el impacto de la trucha arcoíris, Oncorhynchus mykiss, sobre la biota nativa que habita en ambientes de agua dulce de los Andes centrales, Argentina. Para abordar esto, se tomó el contenido estomacal de truchas arcoíris capturadas en tres sitios para evaluar la presión de depredación sobre los vertebrados e invertebrados andinos nativos. Los resultados mostraron que las principales presas fueron el bagre nativo Hatcheria macraei (100% en la dieta), los coleópteros Elmidae (23%) y el cangrejo nativo Aegla affinis (38%) presente en los estómagos de las truchas arcoíris capturadas en el dique Cipolletti (zona Norte), el Río Yaucha (zona Intermedia) y el Arroyo Vaina (zona Sur), respectivamente. Este estudio preliminar muestra la presión de depredación de la trucha arcoíris sobre las especies nativas andinas y sugiere que se apliquen políticas de control para la liberación de alevines de este salmónido exótico en Andes centrales.Acest studiu a avut ca scop examinarea impactului păstrăvului curcubeu non-nativ Oncorhynchus mykiss asupra biotei native care populează mediile dulcicole din Anzii centrali, Argentina. Pentru atingerea acestui scop, a fost prelevat conținutul stomacal de la indivizii de păstrăv curcubeu capturați în trei situri andine pentru a evalua presiunea de prădător asupra vertebratelor și nevertebratelor andine native. Rezultatele au arătat că principalele specii pradă au fost somnul nativ Hatcheria macraei (100% în dietă), coleoptere din familia Elmidae (23%) și crabul nativ Aegla affinis (38%) găsite în stomacurile indivizilor de păstrăv curcubeu colectați de la barajul Cipolletti (zona de nord), râul Yaucha (zona de mijloc) și respectiv pârâul Vaina (zona de sud). Acest studiu preliminar prezintă presiunea de prădător a păstrăvului curcubeu asupra speciilor native andine și sugerează că sunt necesare reglementări pentru a controla eliberarea alevinilor acestui salmonid exotic în Anzii Centrali.Fil: Rios, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Medicina y Biología Experimental de Cuyo; ArgentinaSciendo2021-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/173105Rios, Juan Manuel; Predation by the nonnative rainbow trout, oncorhynchus mykiss (Walbaum 1792), on the native biota from freshwater environment of the central Andes (Argentina); Sciendo; Transylvanian Review of Systematical and Ecological Research; 23; 1; 4-2021; 67-721841-70512344-3219CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://sciendo.com/article/10.2478/trser-2021-0005info:eu-repo/semantics/altIdentifier/doi/10.2478/trser-2021-0005info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:56:12Zoai:ri.conicet.gov.ar:11336/173105instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:56:12.387CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Predation by the nonnative rainbow trout, oncorhynchus mykiss (Walbaum 1792), on the native biota from freshwater environment of the central Andes (Argentina)
Depredación por la trucha arcoíris no nativa, Oncorhynchus mykiss (Walbaum, 1792), sobre la biota nativa del ambiente dulceacuícola de los Andes centrales (Argentina)
Prădătorismul păstrăvului curcubeu non-nativ, Oncorhynchus mykiss, asupra biotei native din mediul dulcicol din Anzii centrali (Argentina)
title Predation by the nonnative rainbow trout, oncorhynchus mykiss (Walbaum 1792), on the native biota from freshwater environment of the central Andes (Argentina)
spellingShingle Predation by the nonnative rainbow trout, oncorhynchus mykiss (Walbaum 1792), on the native biota from freshwater environment of the central Andes (Argentina)
Rios, Juan Manuel
ANDES
ONCORHYNCHUS MYKISS
RAINBOW TROUT
PREDATION
NATIVE BIOTA
title_short Predation by the nonnative rainbow trout, oncorhynchus mykiss (Walbaum 1792), on the native biota from freshwater environment of the central Andes (Argentina)
title_full Predation by the nonnative rainbow trout, oncorhynchus mykiss (Walbaum 1792), on the native biota from freshwater environment of the central Andes (Argentina)
title_fullStr Predation by the nonnative rainbow trout, oncorhynchus mykiss (Walbaum 1792), on the native biota from freshwater environment of the central Andes (Argentina)
title_full_unstemmed Predation by the nonnative rainbow trout, oncorhynchus mykiss (Walbaum 1792), on the native biota from freshwater environment of the central Andes (Argentina)
title_sort Predation by the nonnative rainbow trout, oncorhynchus mykiss (Walbaum 1792), on the native biota from freshwater environment of the central Andes (Argentina)
dc.creator.none.fl_str_mv Rios, Juan Manuel
author Rios, Juan Manuel
author_facet Rios, Juan Manuel
author_role author
dc.subject.none.fl_str_mv ANDES
ONCORHYNCHUS MYKISS
RAINBOW TROUT
PREDATION
NATIVE BIOTA
topic ANDES
ONCORHYNCHUS MYKISS
RAINBOW TROUT
PREDATION
NATIVE BIOTA
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv This study aimed to examine the impact of the nonnative rainbow trout Oncorhynchus mykiss on the native biota that inhabits freshwater environments of the central Andes, Argentina. To assess the predation pressure on native Andean vertebrates and invertebrates, the stomach contents were taken from rainbow trout caught at three Andean sites. Results showed that the major prey items were the native torrent catfish Hatcheria macraei (100% in diet), Elmidae coleopterans (23%), and the native crab Aegla affinis (38%) in the rainbow trout stomachs collected from Cipolletti Dam (North zone), Yaucha River (Middle zone), and Vaina Stream (South zone), respectively. This preliminary study exhibits the predation pressure of the rainbow trout on native Andean species and suggests that policies are necessary to control the release of fry of this exotic salmonid in the Andes region.
Depredación de la trucha arcoíris, Oncorhynchus mykiss, sobre la biota nativa de ambientes de agua dulce de los Andes centrales (Argentina). Este estudio tuvo como objetivo examinar el impacto de la trucha arcoíris, Oncorhynchus mykiss, sobre la biota nativa que habita en ambientes de agua dulce de los Andes centrales, Argentina. Para abordar esto, se tomó el contenido estomacal de truchas arcoíris capturadas en tres sitios para evaluar la presión de depredación sobre los vertebrados e invertebrados andinos nativos. Los resultados mostraron que las principales presas fueron el bagre nativo Hatcheria macraei (100% en la dieta), los coleópteros Elmidae (23%) y el cangrejo nativo Aegla affinis (38%) presente en los estómagos de las truchas arcoíris capturadas en el dique Cipolletti (zona Norte), el Río Yaucha (zona Intermedia) y el Arroyo Vaina (zona Sur), respectivamente. Este estudio preliminar muestra la presión de depredación de la trucha arcoíris sobre las especies nativas andinas y sugiere que se apliquen políticas de control para la liberación de alevines de este salmónido exótico en Andes centrales.
Acest studiu a avut ca scop examinarea impactului păstrăvului curcubeu non-nativ Oncorhynchus mykiss asupra biotei native care populează mediile dulcicole din Anzii centrali, Argentina. Pentru atingerea acestui scop, a fost prelevat conținutul stomacal de la indivizii de păstrăv curcubeu capturați în trei situri andine pentru a evalua presiunea de prădător asupra vertebratelor și nevertebratelor andine native. Rezultatele au arătat că principalele specii pradă au fost somnul nativ Hatcheria macraei (100% în dietă), coleoptere din familia Elmidae (23%) și crabul nativ Aegla affinis (38%) găsite în stomacurile indivizilor de păstrăv curcubeu colectați de la barajul Cipolletti (zona de nord), râul Yaucha (zona de mijloc) și respectiv pârâul Vaina (zona de sud). Acest studiu preliminar prezintă presiunea de prădător a păstrăvului curcubeu asupra speciilor native andine și sugerează că sunt necesare reglementări pentru a controla eliberarea alevinilor acestui salmonid exotic în Anzii Centrali.
Fil: Rios, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Medicina y Biología Experimental de Cuyo; Argentina
description This study aimed to examine the impact of the nonnative rainbow trout Oncorhynchus mykiss on the native biota that inhabits freshwater environments of the central Andes, Argentina. To assess the predation pressure on native Andean vertebrates and invertebrates, the stomach contents were taken from rainbow trout caught at three Andean sites. Results showed that the major prey items were the native torrent catfish Hatcheria macraei (100% in diet), Elmidae coleopterans (23%), and the native crab Aegla affinis (38%) in the rainbow trout stomachs collected from Cipolletti Dam (North zone), Yaucha River (Middle zone), and Vaina Stream (South zone), respectively. This preliminary study exhibits the predation pressure of the rainbow trout on native Andean species and suggests that policies are necessary to control the release of fry of this exotic salmonid in the Andes region.
publishDate 2021
dc.date.none.fl_str_mv 2021-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/173105
Rios, Juan Manuel; Predation by the nonnative rainbow trout, oncorhynchus mykiss (Walbaum 1792), on the native biota from freshwater environment of the central Andes (Argentina); Sciendo; Transylvanian Review of Systematical and Ecological Research; 23; 1; 4-2021; 67-72
1841-7051
2344-3219
CONICET Digital
CONICET
url http://hdl.handle.net/11336/173105
identifier_str_mv Rios, Juan Manuel; Predation by the nonnative rainbow trout, oncorhynchus mykiss (Walbaum 1792), on the native biota from freshwater environment of the central Andes (Argentina); Sciendo; Transylvanian Review of Systematical and Ecological Research; 23; 1; 4-2021; 67-72
1841-7051
2344-3219
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
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info:eu-repo/semantics/altIdentifier/doi/10.2478/trser-2021-0005
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
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application/pdf
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reponame_str CONICET Digital (CONICET)
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instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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