Rainbow trout effects on zooplankton in the reproductive area of the critically endangered hooded grebe

1- Aquaculture in arid Patagonia is potentially affecting the hooded grebe (Podiceps gallardoi), a critically endangered endemic waterbird. Exotic rainbow trout (Oncorhynchus mykiss) were stocked from 1994 in naturally fishless lakes, the primary reproductive habitat of this grebe. 2- Trout and greb...

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Autores: Lancelotti, Julio Lucio, Marinone, María Cristina, Roesler, Carlos Ignacio
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2017
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/60337
Acceso en línea:http://hdl.handle.net/11336/60337
Access Level:acceso abierto
Palabra clave:Alien Species
Aquaculture
Birds
Endangered Species
Fish
Lake
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
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network_acronym_str AR
network_name_str Argentina
repository_id_str
spelling Rainbow trout effects on zooplankton in the reproductive area of the critically endangered hooded grebeLancelotti, Julio LucioMarinone, María CristinaRoesler, Carlos IgnacioAlien SpeciesAquacultureBirdsEndangered SpeciesFishLakehttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/11- Aquaculture in arid Patagonia is potentially affecting the hooded grebe (Podiceps gallardoi), a critically endangered endemic waterbird. Exotic rainbow trout (Oncorhynchus mykiss) were stocked from 1994 in naturally fishless lakes, the primary reproductive habitat of this grebe. 2- Trout and grebes are visual predators, whose diets overlap. Consequently, trout could reduce the abundance of prey of the hooded grebe. 3- This study compared the size distribution and abundance of the pelagic zooplankton fraction preyed upon by trout in four fishless lakes and three lakes stocked with trout, including vegetated and unvegetated lakes. 4- The mean size of Daphnia spp. was 45% and 35% larger in fishless lakes than in stocked lakes, for unvegetated and vegetated lakes, respectively. Boeckella spp. were larger in fishless than in stocked vegetated lakes. 5- Fishless and stocked lakes had highly contrasting biomasses of large pelagic crustaceans. Amphipods were absent from the water column of all stocked lakes analysed, and were abundant in fishless lakes. Parabroteas sarsi was absent from the two large unvegetated lakes, stocked with trout. 6- These shifts in the abundance and size spectrum of the zooplankton may reflect competition between trout and hooded grebe, affecting the survival of the latter species. 7- The current conservation status of this rare aquatic bird demands the application of management tools to reduce the detrimental effects of aquaculture on their primary reproductive habitat.Fil: Lancelotti, Julio Lucio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; ArgentinaFil: Marinone, María Cristina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; ArgentinaFil: Roesler, Carlos Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; ArgentinaJohn Wiley & Sons Ltd2017-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/60337Lancelotti, Julio Lucio; Marinone, María Cristina; Roesler, Carlos Ignacio; Rainbow trout effects on zooplankton in the reproductive area of the critically endangered hooded grebe; John Wiley & Sons Ltd; Aquatic Conservation: Marine and Freshwater Ecosystems; 27; 1; 2-2017; 128-1361052-7613CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1002/aqc.2629info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/pdf/10.1002/aqc.2629info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:48:14Zoai:ri.conicet.gov.ar:11336/60337instacron: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:34982024-05-08 13:48:15.098CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Rainbow trout effects on zooplankton in the reproductive area of the critically endangered hooded grebe
title Rainbow trout effects on zooplankton in the reproductive area of the critically endangered hooded grebe
spellingShingle Rainbow trout effects on zooplankton in the reproductive area of the critically endangered hooded grebe
Lancelotti, Julio Lucio
Alien Species
Aquaculture
Birds
Endangered Species
Fish
Lake
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
title_short Rainbow trout effects on zooplankton in the reproductive area of the critically endangered hooded grebe
title_full Rainbow trout effects on zooplankton in the reproductive area of the critically endangered hooded grebe
title_fullStr Rainbow trout effects on zooplankton in the reproductive area of the critically endangered hooded grebe
title_full_unstemmed Rainbow trout effects on zooplankton in the reproductive area of the critically endangered hooded grebe
title_sort Rainbow trout effects on zooplankton in the reproductive area of the critically endangered hooded grebe
dc.creator.none.fl_str_mv Lancelotti, Julio Lucio
Marinone, María Cristina
Roesler, Carlos Ignacio
author Lancelotti, Julio Lucio
author_facet Lancelotti, Julio Lucio
Marinone, María Cristina
Roesler, Carlos Ignacio
author_role author
author2 Marinone, María Cristina
Roesler, Carlos Ignacio
author2_role author
author
dc.subject.none.fl_str_mv Alien Species
Aquaculture
Birds
Endangered Species
Fish
Lake
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
topic Alien Species
Aquaculture
Birds
Endangered Species
Fish
Lake
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
description 1- Aquaculture in arid Patagonia is potentially affecting the hooded grebe (Podiceps gallardoi), a critically endangered endemic waterbird. Exotic rainbow trout (Oncorhynchus mykiss) were stocked from 1994 in naturally fishless lakes, the primary reproductive habitat of this grebe. 2- Trout and grebes are visual predators, whose diets overlap. Consequently, trout could reduce the abundance of prey of the hooded grebe. 3- This study compared the size distribution and abundance of the pelagic zooplankton fraction preyed upon by trout in four fishless lakes and three lakes stocked with trout, including vegetated and unvegetated lakes. 4- The mean size of Daphnia spp. was 45% and 35% larger in fishless lakes than in stocked lakes, for unvegetated and vegetated lakes, respectively. Boeckella spp. were larger in fishless than in stocked vegetated lakes. 5- Fishless and stocked lakes had highly contrasting biomasses of large pelagic crustaceans. Amphipods were absent from the water column of all stocked lakes analysed, and were abundant in fishless lakes. Parabroteas sarsi was absent from the two large unvegetated lakes, stocked with trout. 6- These shifts in the abundance and size spectrum of the zooplankton may reflect competition between trout and hooded grebe, affecting the survival of the latter species. 7- The current conservation status of this rare aquatic bird demands the application of management tools to reduce the detrimental effects of aquaculture on their primary reproductive habitat.
publishDate 2017
dc.date.none.fl_str_mv 2017-02
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/11336/60337
Lancelotti, Julio Lucio; Marinone, María Cristina; Roesler, Carlos Ignacio; Rainbow trout effects on zooplankton in the reproductive area of the critically endangered hooded grebe; John Wiley & Sons Ltd; Aquatic Conservation: Marine and Freshwater Ecosystems; 27; 1; 2-2017; 128-136
1052-7613
CONICET Digital
CONICET
url http://hdl.handle.net/11336/60337
identifier_str_mv Lancelotti, Julio Lucio; Marinone, María Cristina; Roesler, Carlos Ignacio; Rainbow trout effects on zooplankton in the reproductive area of the critically endangered hooded grebe; John Wiley & Sons Ltd; Aquatic Conservation: Marine and Freshwater Ecosystems; 27; 1; 2-2017; 128-136
1052-7613
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1002/aqc.2629
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/pdf/10.1002/aqc.2629
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
dc.publisher.none.fl_str_mv John Wiley & Sons Ltd
publisher.none.fl_str_mv John Wiley & Sons Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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 15.812455

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