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dc.contributor.authorMarjomäki, Timo J.
dc.contributor.authorAuvinen, Heikki
dc.contributor.authorHelminen, Harri
dc.contributor.authorHuusko, Ari
dc.contributor.authorHuuskonen, Hannu
dc.contributor.authorHyvärinen, Pekka
dc.contributor.authorJurvelius, Juha
dc.contributor.authorSarvala, Jouko
dc.contributor.authorValkeajärvi, Pentti
dc.contributor.authorViljanen, Markku
dc.contributor.authorKarjalainen, Juha
dc.date.accessioned2021-10-11T06:57:40Z
dc.date.available2021-10-11T06:57:40Z
dc.date.issued2021
dc.identifier.citationMarjomäki, T. J., Auvinen, H., Helminen, H., Huusko, A., Huuskonen, H., Hyvärinen, P., Jurvelius, J., Sarvala, J., Valkeajärvi, P., Viljanen, M., & Karjalainen, J. (2021). Occurrence of Two-Year Cyclicity, “Saw-Blade Fluctuation”, in Vendace Populations in Finland. <i>Annales Zoologici Fennici</i>, <i>58</i>(4-6), 215-229. <a href="https://doi.org/10.5735/086.058.0408" target="_blank">https://doi.org/10.5735/086.058.0408</a>
dc.identifier.otherCONVID_101389085
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/78075
dc.description.abstractThe tendency towards two-year cyclicity is considered typical of many Fennoscandian vendace populations, especially in fluctuation of recruitment, based on time series of individual lakes. We used two robust indicators to identify and quantify two-year cycles in vendace population proxy time series at different life-stages — spawning stock biomass (SB), density of newly hatched larvae (LD) and recruitment (REC) — from 22 Finnish lakes. Then we applied Fisher’s meta-analytical test to assess the adequacy of the evidence to support the hypothesis that vendace population dynam-ics include two-year cyclicity. The results supported this hypothesis for RECbut not for SB or LD. Yet, the indicators and test are conservative and time-series of SB and LD are shorter than those for REC. The appearance of cycles in REC is associated with high post-recruitment mortality, consequently practically only one spawning per cohort. Cycles may be typical for the recovery period from low abundance period also. Still, some populations with moderate post-REC mortality and non-cyclic SB abundance exhibited cycles in REC. Such dynamics presuppose the existence of more complex regulation based on the interaction of different life stages.en
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherFinnish Zoological and Botanical Publishing Board
dc.relation.ispartofseriesAnnales Zoologici Fennici
dc.rightsIn Copyright
dc.titleOccurrence of Two-Year Cyclicity, “Saw-Blade Fluctuation”, in Vendace Populations in Finland
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202110115111
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.format.pagerange215–229
dc.relation.issn0003-455X
dc.relation.numberinseries4-6
dc.relation.volume58
dc.type.versionpublishedVersion
dc.rights.copyright© Finnish Zoological and Botanical Publishing Board
dc.rights.accesslevelopenAccessfi
dc.subject.ysokalakannat
dc.subject.ysopopulaatiodynamiikka
dc.subject.ysomuikku
dc.subject.ysokannanvaihtelut
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p8529
jyx.subject.urihttp://www.yso.fi/onto/yso/p23558
jyx.subject.urihttp://www.yso.fi/onto/yso/p19649
jyx.subject.urihttp://www.yso.fi/onto/yso/p26936
dc.rights.urlhttp://rightsstatements.org/page/InC/1.0/?language=en
dc.relation.doi10.5735/086.058.0408


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