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dc.contributor.authorUusi-Heikkilä, Silva
dc.contributor.authorPerälä, Tommi
dc.contributor.authorKuparinen, Anna
dc.date.accessioned2022-01-12T11:53:46Z
dc.date.available2022-01-12T11:53:46Z
dc.date.issued2021
dc.identifier.citationUusi-Heikkilä, S., Perälä, T., & Kuparinen, A. (2021). Fishing triggers trophic cascade in terms of variation, not abundance in an allometric trophic network model. <i>Canadian Journal of Fisheries and Aquatic Sciences</i>, <i>Just-IN</i>. <a href="https://doi.org/10.1139/cjfas-2021-0146" target="_blank">https://doi.org/10.1139/cjfas-2021-0146</a>
dc.identifier.otherCONVID_102324674
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/79339
dc.description.abstractTrophic cascade studies often rely on linear food chains instead of complex food webs and are typically measured as biomass averages, not as biomass variation. We study trophic cascades propagating across a complex food web including a measure of biomass variation in addition to biomass average. We examined whether different fishing strategies induce trophic cascades and whether the cascades differ from each other. We utilized an allometric trophic network (ATN) model to mechanistically study fishing-induced changes in food-web dynamics. Different fishing strategies did not trigger traditional, reciprocal trophic cascades, as measured in biomass averages. Instead, fishing triggered a variation cascade that propagated across the food web including fish, zooplankton and phytoplankton species. In fisheries that removed a large amount of top-predatory and cannibalistic fish, the biomass oscillations started to decrease after fishing was started. In fisheries that mainly targeted large planktivorous fish, the biomass oscillations did not dampen, but slightly increased over time. Removing species with specific ecological functions might alter the food web dynamics and potentially affect the ecological resilience of aquatic ecosystems.en
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherCanadian Science Publishing
dc.relation.ispartofseriesCanadian Journal of Fisheries and Aquatic Sciences
dc.rightsCC BY 4.0
dc.subject.otherfisheries-induced trophic cascade
dc.subject.otherfood web dynamics
dc.subject.othervariation cascade
dc.subject.othertrophic interaction
dc.subject.otherecosystem stability
dc.titleFishing triggers trophic cascade in terms of variation, not abundance in an allometric trophic network model
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202201121115
dc.contributor.laitosBio- ja ympäristötieteiden laitosfi
dc.contributor.laitosDepartment of Biological and Environmental Scienceen
dc.contributor.oppiaineAkvaattiset tieteetfi
dc.contributor.oppiaineResurssiviisausyhteisöfi
dc.contributor.oppiaineAquatic Sciencesen
dc.contributor.oppiaineSchool of Resource Wisdomen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.description.reviewstatuspeerReviewed
dc.relation.issn0706-652X
dc.relation.volumeJust-IN
dc.type.versionacceptedVersion
dc.rights.copyright© 2021 the Authors
dc.rights.accesslevelopenAccessfi
dc.relation.grantnumber770884
dc.relation.grantnumber770884
dc.relation.grantnumber325107
dc.relation.grantnumber317495
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/H2020/770884/EU//COMPLEX-FISH
dc.subject.ysovesiekosysteemit
dc.subject.ysoravintoketjut
dc.subject.ysokalatalous
dc.subject.ysoravintoverkot
dc.subject.ysotehokalastus
dc.subject.ysobiomassa (ekologia)
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p11000
jyx.subject.urihttp://www.yso.fi/onto/yso/p12241
jyx.subject.urihttp://www.yso.fi/onto/yso/p4802
jyx.subject.urihttp://www.yso.fi/onto/yso/p22082
jyx.subject.urihttp://www.yso.fi/onto/yso/p20890
jyx.subject.urihttp://www.yso.fi/onto/yso/p39245
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.1139/cjfas-2021-0146
dc.relation.funderEuroopan komissiofi
dc.relation.funderSuomen Akatemiafi
dc.relation.funderSuomen Akatemiafi
dc.relation.funderEuropean Commissionen
dc.relation.funderAcademy of Finlanden
dc.relation.funderAcademy of Finlanden
jyx.fundingprogramERC Consolidator Grantfi
jyx.fundingprogramAkatemiatutkijan tehtävä, SAfi
jyx.fundingprogramAkatemiahanke, SAfi
jyx.fundingprogramERC Consolidator Granten
jyx.fundingprogramResearch post as Academy Research Fellow, AoFen
jyx.fundingprogramAcademy Project, AoFen
jyx.fundinginformationThis study was funded by Finnish Cultural Foundation (SUH), Academy of Finland (SUH grant #325107, AK grant #317495), Natural Sciences and Engineering Research Council of Canada (AK), and the European Research Council (COMPLEX-FISH 770884 to AK).


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