Altered mayfly distribution due to strong interactions with alien rainbow trout in Andean streams of Patagonia

Autores
Albariño, Ricardo Javier; Buria, Leonardo Mario
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Nesameletidae is a Southern Hemisphere ephemeropteran family with large-bodied nymphs that are swimming grazers, traits that make aquatic invertebrates vulnerable to visual predators. Metamonius anceps is the sole representative of this family in South America and its present known distribution along the Southern Andes is mostly restricted to headwater streams, usually with clear and well-oxygenated waters. We analyzed their spatial distribution in relation to the presence of the exotic predator rainbow trout (Oncorhynchus mykiss), which is the only fish species in many small Andean Patagonia streams. We measured mayfly abundance in the benthos and drift in reaches with and without fish (the latter being reaches upstream of waterfalls that prevent trout access) in three catchments of Nahuel Huapi Lake basin at the Nahuel Huapi National Park, Argentina. We compared nymphal abundance and body size at the habitat scale and at the reach scale, and nymphal presence and body size in trout diet. A multivariate analysis of physical stream features showed that habitat/reaches with and without fish had similar abiotic characteristics. In no fish sites, nymph density ranged between 44 and 180 m−2 while in fish sites they were 0–3 m−2. In one stream nymphs drifted mainly during the day and ∼400 indiv. day−1 were estimated to enter the site with fish. However no nymphs were collected drifting 200 m below the waterfall (the reach with fish). Observations on the diet of rainbow trout also supported the ongoing strong interaction between this mayfly and the trout. M. anceps is a highly vulnerable prey as no permanent populations were found in study reaches with the exotic predator established. Our study emphasizes the potential of natural physical barriers to stop invasive fish having access to headwaters allowing them to harbour natural populations of the most trout-susceptible species supporting pristine ecosystem conditions.
Fil: Albariño, Ricardo Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Buria, Leonardo Mario. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Administración de Parques Nacionales; Argentina
Materia
Fish predation
Prey vulnerability
Small mountainous streams
Trout invasion
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/283251
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Altered mayfly distribution due to strong interactions with alien rainbow trout in Andean streams of PatagoniaAlbariño, Ricardo JavierBuria, Leonardo MarioFish predationPrey vulnerabilitySmall mountainous streamsTrout invasionhttps://purl.org/becyt/ford/1.7https://purl.org/becyt/ford/1Nesameletidae is a Southern Hemisphere ephemeropteran family with large-bodied nymphs that are swimming grazers, traits that make aquatic invertebrates vulnerable to visual predators. Metamonius anceps is the sole representative of this family in South America and its present known distribution along the Southern Andes is mostly restricted to headwater streams, usually with clear and well-oxygenated waters. We analyzed their spatial distribution in relation to the presence of the exotic predator rainbow trout (Oncorhynchus mykiss), which is the only fish species in many small Andean Patagonia streams. We measured mayfly abundance in the benthos and drift in reaches with and without fish (the latter being reaches upstream of waterfalls that prevent trout access) in three catchments of Nahuel Huapi Lake basin at the Nahuel Huapi National Park, Argentina. We compared nymphal abundance and body size at the habitat scale and at the reach scale, and nymphal presence and body size in trout diet. A multivariate analysis of physical stream features showed that habitat/reaches with and without fish had similar abiotic characteristics. In no fish sites, nymph density ranged between 44 and 180 m−2 while in fish sites they were 0–3 m−2. In one stream nymphs drifted mainly during the day and ∼400 indiv. day−1 were estimated to enter the site with fish. However no nymphs were collected drifting 200 m below the waterfall (the reach with fish). Observations on the diet of rainbow trout also supported the ongoing strong interaction between this mayfly and the trout. M. anceps is a highly vulnerable prey as no permanent populations were found in study reaches with the exotic predator established. Our study emphasizes the potential of natural physical barriers to stop invasive fish having access to headwaters allowing them to harbour natural populations of the most trout-susceptible species supporting pristine ecosystem conditions.Fil: Albariño, Ricardo Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaFil: Buria, Leonardo Mario. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Administración de Parques Nacionales; ArgentinaElsevier Gmbh2011-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/283251Albariño, Ricardo Javier; Buria, Leonardo Mario; Altered mayfly distribution due to strong interactions with alien rainbow trout in Andean streams of Patagonia; Elsevier Gmbh; Limnologica; 41; 3; 9-2011; 220-2270075-9511CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0075951110000356info:eu-repo/semantics/altIdentifier/doi/10.1016/j.limno.2010.07.004info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-08-25T14:33:14Zoai:ri.conicet.gov.ar:11336/283251instacron: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:34982026-08-25 14:33:14.408CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Altered mayfly distribution due to strong interactions with alien rainbow trout in Andean streams of Patagonia
title Altered mayfly distribution due to strong interactions with alien rainbow trout in Andean streams of Patagonia
spellingShingle Altered mayfly distribution due to strong interactions with alien rainbow trout in Andean streams of Patagonia
Albariño, Ricardo Javier
Fish predation
Prey vulnerability
Small mountainous streams
Trout invasion
title_short Altered mayfly distribution due to strong interactions with alien rainbow trout in Andean streams of Patagonia
title_full Altered mayfly distribution due to strong interactions with alien rainbow trout in Andean streams of Patagonia
title_fullStr Altered mayfly distribution due to strong interactions with alien rainbow trout in Andean streams of Patagonia
title_full_unstemmed Altered mayfly distribution due to strong interactions with alien rainbow trout in Andean streams of Patagonia
title_sort Altered mayfly distribution due to strong interactions with alien rainbow trout in Andean streams of Patagonia
dc.creator.none.fl_str_mv Albariño, Ricardo Javier
Buria, Leonardo Mario
author Albariño, Ricardo Javier
author_facet Albariño, Ricardo Javier
Buria, Leonardo Mario
author_role author
author2 Buria, Leonardo Mario
author2_role author
dc.subject.none.fl_str_mv Fish predation
Prey vulnerability
Small mountainous streams
Trout invasion
topic Fish predation
Prey vulnerability
Small mountainous streams
Trout invasion
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.7
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Nesameletidae is a Southern Hemisphere ephemeropteran family with large-bodied nymphs that are swimming grazers, traits that make aquatic invertebrates vulnerable to visual predators. Metamonius anceps is the sole representative of this family in South America and its present known distribution along the Southern Andes is mostly restricted to headwater streams, usually with clear and well-oxygenated waters. We analyzed their spatial distribution in relation to the presence of the exotic predator rainbow trout (Oncorhynchus mykiss), which is the only fish species in many small Andean Patagonia streams. We measured mayfly abundance in the benthos and drift in reaches with and without fish (the latter being reaches upstream of waterfalls that prevent trout access) in three catchments of Nahuel Huapi Lake basin at the Nahuel Huapi National Park, Argentina. We compared nymphal abundance and body size at the habitat scale and at the reach scale, and nymphal presence and body size in trout diet. A multivariate analysis of physical stream features showed that habitat/reaches with and without fish had similar abiotic characteristics. In no fish sites, nymph density ranged between 44 and 180 m−2 while in fish sites they were 0–3 m−2. In one stream nymphs drifted mainly during the day and ∼400 indiv. day−1 were estimated to enter the site with fish. However no nymphs were collected drifting 200 m below the waterfall (the reach with fish). Observations on the diet of rainbow trout also supported the ongoing strong interaction between this mayfly and the trout. M. anceps is a highly vulnerable prey as no permanent populations were found in study reaches with the exotic predator established. Our study emphasizes the potential of natural physical barriers to stop invasive fish having access to headwaters allowing them to harbour natural populations of the most trout-susceptible species supporting pristine ecosystem conditions.
Fil: Albariño, Ricardo Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Buria, Leonardo Mario. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Administración de Parques Nacionales; Argentina
description Nesameletidae is a Southern Hemisphere ephemeropteran family with large-bodied nymphs that are swimming grazers, traits that make aquatic invertebrates vulnerable to visual predators. Metamonius anceps is the sole representative of this family in South America and its present known distribution along the Southern Andes is mostly restricted to headwater streams, usually with clear and well-oxygenated waters. We analyzed their spatial distribution in relation to the presence of the exotic predator rainbow trout (Oncorhynchus mykiss), which is the only fish species in many small Andean Patagonia streams. We measured mayfly abundance in the benthos and drift in reaches with and without fish (the latter being reaches upstream of waterfalls that prevent trout access) in three catchments of Nahuel Huapi Lake basin at the Nahuel Huapi National Park, Argentina. We compared nymphal abundance and body size at the habitat scale and at the reach scale, and nymphal presence and body size in trout diet. A multivariate analysis of physical stream features showed that habitat/reaches with and without fish had similar abiotic characteristics. In no fish sites, nymph density ranged between 44 and 180 m−2 while in fish sites they were 0–3 m−2. In one stream nymphs drifted mainly during the day and ∼400 indiv. day−1 were estimated to enter the site with fish. However no nymphs were collected drifting 200 m below the waterfall (the reach with fish). Observations on the diet of rainbow trout also supported the ongoing strong interaction between this mayfly and the trout. M. anceps is a highly vulnerable prey as no permanent populations were found in study reaches with the exotic predator established. Our study emphasizes the potential of natural physical barriers to stop invasive fish having access to headwaters allowing them to harbour natural populations of the most trout-susceptible species supporting pristine ecosystem conditions.
publishDate 2011
dc.date.none.fl_str_mv 2011-09
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/11336/283251
Albariño, Ricardo Javier; Buria, Leonardo Mario; Altered mayfly distribution due to strong interactions with alien rainbow trout in Andean streams of Patagonia; Elsevier Gmbh; Limnologica; 41; 3; 9-2011; 220-227
0075-9511
CONICET Digital
CONICET
url http://hdl.handle.net/11336/283251
identifier_str_mv Albariño, Ricardo Javier; Buria, Leonardo Mario; Altered mayfly distribution due to strong interactions with alien rainbow trout in Andean streams of Patagonia; Elsevier Gmbh; Limnologica; 41; 3; 9-2011; 220-227
0075-9511
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0075951110000356
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.limno.2010.07.004
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Gmbh
publisher.none.fl_str_mv Elsevier Gmbh
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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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score 13.24418

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