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dc.contributor.authorVejřík, Lukáš
dc.contributor.authorVejříková, Ivana
dc.contributor.authorBlabolil, Petr
dc.contributor.authorEloranta, Antti P.
dc.contributor.authorKočvara, Luboš
dc.contributor.authorPeterka, Jiří
dc.contributor.authorSajdlová, Zuzana
dc.contributor.authorChung, Son Hoang The
dc.contributor.authorŠmejkal, Marek
dc.contributor.authorKiljunen, Mikko
dc.contributor.authorČech, Martin
dc.date.accessioned2017-12-01T09:35:07Z
dc.date.available2017-12-01T09:35:07Z
dc.date.issued2017
dc.identifier.citationVejřík, L., Vejříková, I., Blabolil, P., Eloranta, A. P., Kočvara, L., Peterka, J., Sajdlová, Z., Chung, S. H. T., Šmejkal, M., Kiljunen, M., & Čech, M. (2017). European catfish (Silurus glanis) as a freshwater apex predator drives ecosystem via its diet adaptability. <i>Scientific Reports</i>, <i>7</i>, Article 15970. <a href="https://doi.org/10.1038/s41598-017-16169-9" target="_blank">https://doi.org/10.1038/s41598-017-16169-9</a>
dc.identifier.otherCONVID_27384072
dc.identifier.otherTUTKAID_75867
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/56079
dc.description.abstractApex predators play a key role in ecosystem stability across environments but their numbers in general are decreasing. By contrast, European catfsh (Silurus glanis), the European freshwater apex predator, is on the increase. However, studies concerning apex predators in freshwaters are scarce in comparison to those in terrestrial and marine ecosystems. The present study combines stomach content and stable isotope analyses with diet preferences of catfsh to reveal its impact on the ecosystem since stocking. Catfsh niche width is extremely wide in comparison to the typical model predator, Northern pike (Esox lucius). Catfsh and pike have diferent individual dietary specialization that results in diferent functional roles in coupling or compartmentalizing distinct food webs. The role of both species in the ecosystem is irreplaceable due to multiple predator efects. The impact of catfsh is apparent across the entire aquatic ecosystem, but herbivores are the most afected ecological group. The key feature of catfsh, and probably a common feature of apex predators in general, is utilization of several dietary strategies by individuals within a population: long-term generalism or specialization and also shortterm specialization. Catfsh, similar to other large-bodied apex predators, have two typical features: enormous generalism and adaptability to new prey sources.
dc.language.isoeng
dc.publisherNature Publishing Group
dc.relation.ispartofseriesScientific Reports
dc.subject.otherpetokalat
dc.subject.othermonni
dc.subject.othervesiekosysteemit
dc.subject.otherravintoketjut
dc.subject.otherpredatory fishes
dc.subject.otherSilurus glanis
dc.subject.otheraquatic ecosystems
dc.subject.otherfood chains
dc.titleEuropean catfish (Silurus glanis) as a freshwater apex predator drives ecosystem via its diet adaptability
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201711244368
dc.contributor.laitosBio- ja ympäristötieteiden laitosfi
dc.contributor.laitosDepartment of Biological and Environmental Scienceen
dc.contributor.oppiaineAkvaattiset tieteetfi
dc.contributor.oppiaineAquatic Sciencesen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2017-11-24T13:15:24Z
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.relation.issn2045-2322
dc.relation.numberinseries0
dc.relation.volume7
dc.type.versionpublishedVersion
dc.rights.copyright© the Authors, 2017. This article is licensed under a Creative Commons Attribution 4.0 International License.
dc.rights.accesslevelopenAccessfi
dc.subject.ysopetokalat
dc.subject.ysomonni
dc.subject.ysovesiekosysteemit
dc.subject.ysoravintoketjut
jyx.subject.urihttp://www.yso.fi/onto/yso/p902
jyx.subject.urihttp://www.yso.fi/onto/yso/p19224
jyx.subject.urihttp://www.yso.fi/onto/yso/p11000
jyx.subject.urihttp://www.yso.fi/onto/yso/p12241
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.1038/s41598-017-16169-9


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© the Authors, 2017. This article is licensed under a Creative Commons Attribution 4.0 International License.
Except where otherwise noted, this item's license is described as © the Authors, 2017. This article is licensed under a Creative Commons Attribution 4.0 International License.