First record of a synergistic interaction between invasive salmonids in South America

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datacite.alternateIdentifier.citationBiological invasions, 24 (1), 2022
datacite.alternateIdentifier.doi10.1007/s10530-021-02629-x
datacite.alternateIdentifier.issn1387-3547
datacite.creatorFigueroa-Muñoz, Guillermo
datacite.creatorGómez-Uchida, Daniel
datacite.creatorFierro, P. E.
datacite.creatorValdebenito, Iván
datacite.creatorArismendi, Ivan
datacite.date2022
datacite.rightsRegistro bibliográfico
datacite.subjectMarine-derived Nutrients
datacite.subjectPredation
datacite.subjectRiver
datacite.subjectSalmon
datacite.subjectSouthern Chile
datacite.subjectTrout
datacite.subjectEgg Predation
datacite.subjectInvasive Species
datacite.subjectNew Record
datacite.subjectSalmonid
datacite.subjectSpawning
datacite.subjectSpawning Population
datacite.subjectSurvival
datacite.subjectSynergism
datacite.subjectChile
datacite.subjectPatagonia
datacite.titleFirst record of a synergistic interaction between invasive salmonids in South America
dc.contributor.authorVALDEBENITO ISLER, NEMESIO IVAN
dc.description.abstractEcological interactions among multiple invaders can aggravate their effects on invaded systems. Many salmonids including rainbow trout Oncorhynchus mykiss and Chinook salmon O. tshawytscha have established naturalized populations and co-occur in rivers worldwide. Predation of eggs and juveniles has been well documented among salmonids in their native range in the Northern Hemisphere. It has been unclear to what extent these interactions exist in invaded rivers of the Patagonia. Here, we report and quantify rainbow trout predation of Chinook salmon eggs in the Cisnes River Basin, southern Chile. We used hook and line angling to sample rainbow trout (n = 80) around salmon spawning areas before, during, and after the spawning season of Chinook salmon. Stomach contents obtained during two consecutive years show consistent evidence that rainbow trout opportunistically prey on Chinook salmon eggs. Salmon eggs occurred in 75 and 50% of the trout stomachs analyzed in 2019 and 2020, respectively. The number of salmon eggs (mean ± SD) per trout stomach ranged between 17.95 ± 24.29 in 2019 and 7.45 ± 12.90 in 2020. We assumed that consumed eggs were primarily non-viable or would have had low probabilities of survival suggesting a synergistic interaction between rainbow trout and Chinook salmon. Our findings provide baseline information that contribute to demographic studies and the management of invasive salmonids in rivers of this region and elsewhere. © 2022 Elsevier B.V., All rights reserved.
dc.description.ia_keywordsalmon, trout, eggs, rainbow, chinook, salmonids, rivers
dc.identifier.issn1573-1464
dc.identifier.urihttps://repositoriodigital.uct.cl/handle/10925/4231
dc.language.isoen
dc.publisherSpringer Nature
dc.relationinstname: ANID
dc.relationreponame: Repositorio Digital RI2.0
dc.rights.driverinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/
dc.sourceBiological invasions
dc.subject.ia_oecd1nCiencias Sociales
dc.subject.ia_oecd2nEconomía y Negocios
dc.subject.ia_oecd3nNegocios y Gestión
dc.type.driverinfo:eu-repo/semantics/article
dc.type.driverhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.type.openaireinfo:eu-repo/semantics/publishedVersion
dspace.entity.typePublication
oaire.citationEdition2022
oaire.citationIssue1
oaire.citationTitleBiological invasions
oaire.citationVolume24
oaire.fundingReferenceANID MILLENNIUM NCN16_034
oaire.fundingReferenceUCT VRIP 4136-2018, FEQUIP2019-INRN-03
oaire.fundingReferenceANID FONDECYT 1191256
oaire.fundingReferenceCONICYT PFCHA MAGÍSTER NACIONAL 2020-22200247
oaire.licenseConditionCopyright © Springer Nature, 2021
oaire.resourceTypeArtículo
oaire.resourceType.enArticle
relation.isAuthorOfPublicationa18558bc-bf10-4e11-9254-4d4be1564d44
relation.isAuthorOfPublication.latestForDiscoverya18558bc-bf10-4e11-9254-4d4be1564d44
uct.catalogadorjvu
uct.comunidadRecursos Naturalesen_US
uct.departamentoDepartamento de Ciencias Agropecuarias y Acuícolas
uct.facultadFacultad de Recursos Naturales
uct.indizacionScience Citation Index Expanded - SCIE
uct.indizacionScopus
uct.indizacionCAB Abstracts
uct.indizacionZoological Record
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