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Variation in diet patterns of the invasive top predator Sander lucioperca (Linnaeus, 1758) across portuguese basins

2021Journal article Open access
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dc.contributor.authorRibeiro, D.
dc.contributor.authorGkenas, C.
dc.contributor.authorGago, João
dc.contributor.authorRibeiro, F.
dc.date.accessioned2021-08-20T13:43:02Z
dc.date.available2021-08-20T13:43:02Z
dc.date.issued2021
dc.description.abstractThe introduction of non-native species is recognized as a major threat to biodiversity, particularly in freshwater ecosystems. Pikeperch Sander lucioperca, is a recent invader to Portugal, primarily providing commercial and angling interest. The aim of this work was to study the diet of this top predator across Portuguese basins and to evaluate its potential impact on recipient ecosystems. In total, 256 pikeperch stomachs from seven basins were examined, of which 88 (n = 34%) were empty. Pikeperch diet was dominated by R. rutilus, M. salmoides and Diptera in northern populations, while A. alburnus, P. clarkii and Atyidae were important prey in more humid highlands. Variation in diet was most strongly linked to latitude and ontogeny, with both size classes showing signs of cannibalism. The population niche breadth remained low and was accompanied by higher individual diet specialization, particularly in northern populations. Pikeperch dietary patterns denoted an opportunistic ability to use locally abundant prey in each ecosystem, and was size dependent, with larger individuals becoming more piscivores, causing a higher impact in the lotic systems. This first perspective about the pikeperch diet presents a very broad view of the feeding traits of this non-native predator across Portugal, being very important to deepen our knowledge about the impact of these introduced piscivores.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationRibeiro, D.; Gkenas, C.; Gago J. & Ribeiro F.(2021). Variation in diet patterns of the invasive top predator Sander lucioperca (Linnaeus, 1758) across Portuguese Basins. Water. 2021; 13(15):2053. https://doi.org/10.3390/w13152053pt_PT
dc.identifier.doihttps://doi.org/10.3390/w13152053pt_PT
dc.identifier.eissn2073-4441
dc.identifier.urihttp://hdl.handle.net/10400.15/3620
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationproject SONICINVADERS (FCT) PTDC/CTA-AMB/28782/2017pt_PT
dc.relationproject FRISK PTDC/AAG-MAA/0350/2014pt_PT
dc.relationproject ISO-INVA LISBOA-010145-FEDER-029105 PTDC/CTA-AMB/29105/2017pt_PT
dc.relationLisboa 2020-Programa Operacional Regional de Lisboapt_PT
dc.relation.publisherversionhttps://www.mdpi.com/2073-4441/13/15/2053pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectfreshwaterspt_PT
dc.subjectpikeperchtrophicpt_PT
dc.subjectecologydietpt_PT
dc.subjectspecializationnon-native fishpt_PT
dc.titleVariation in diet patterns of the invasive top predator Sander lucioperca (Linnaeus, 1758) across portuguese basinspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceBasel, Switzerlandpt_PT
oaire.citation.issue15pt_PT
oaire.citation.startPage2053pt_PT
oaire.citation.titleWaterpt_PT
oaire.citation.volume13pt_PT
person.familyNameAndré Evaristo de Matos Gago
person.givenNameJoão
person.identifier.ciencia-idB013-AE6E-192F
person.identifier.orcid0000-0003-3893-5920
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication406ec75e-4f7c-4086-8c18-2e47234287b9
relation.isAuthorOfPublication.latestForDiscovery406ec75e-4f7c-4086-8c18-2e47234287b9

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