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[{"key": "dc.contributor.advisor", "value": "Karjalainen, Juha", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.advisor", "value": "Marjom\u00e4ki, Timo", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Tuloisela, Markus", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2022-06-17T06:50:50Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2022-06-17T06:50:50Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2022", "language": "", "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/81837", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Muikun m\u00e4timunien kutu- ja hautomispaikkoja boreaalisissa j\u00e4rviss\u00e4 ei tarkasti tunneta. Uusi munaker\u00e4in kehitettiin vuonna 2018 ja sit\u00e4 testattiin ensimm\u00e4ist\u00e4 kertaa laajemmin syksyll\u00e4 2019. Tutkimuksessa kysyttiin ensimm\u00e4isen\u00e4 ett\u00e4, onko syvyydell\u00e4 vaikutusta munatiheyteen ja hedelm\u00f6itysasteeseen. Tutkimuksessa toisena kysyttiin ett\u00e4, onko paikalla vaikutusta munatiheyteen ja hedelm\u00f6itysasteeseen. Munaker\u00e4inmenetelm\u00e4n toimivuutta, muikun lis\u00e4\u00e4ntymist\u00e4 ja sen onnistumista mitattiin t\u00e4m\u00e4n uuden munaker\u00e4inmenetelm\u00e4n avulla. Ennen muikun kutua 500 munaker\u00e4int\u00e4 asetettiin viiteen eri syvyysvy\u00f6hykkeeseen 20:ss\u00e4 eri paikassa loka-marraskuussa 2019 Etel\u00e4-Konnevedell\u00e4. Hedelm\u00f6ittyneit\u00e4 munia l\u00f6ytyi 18:lta n\u00e4ytteenottopaikalta. Keskimunatiheys oli 74 (SD \u00b1 112) munaa m-2 ja keskihedelm\u00f6itysaste oli 85 % (SD = 24, n = 266). Hedelm\u00f6itysprosentti oli kauttaaltaan korkea. Syvyyksien suhteen ei ollut eroja hedelm\u00f6itysasteissa, mutta paikkojen v\u00e4lill\u00e4 oli eroja. Munatiheyksiss\u00e4 erot olivat suuria (nollasta satoihin munaa m-2). Munam\u00e4\u00e4r\u00e4 vaihteli syvyyden suhteen. Eniten munia oli syvyyksiss\u00e4 3\u201312 m, matalammalle ja syvemm\u00e4lle ment\u00e4ess\u00e4 munam\u00e4\u00e4r\u00e4 laski. Munatiheydess\u00e4 oli eroja n\u00e4ytteenottopaikkojen ja syvyysvy\u00f6hykkeiden v\u00e4lill\u00e4. Sijainti j\u00e4rven it\u00e4puolella ja alueen korkea keskisyvyys selittiv\u00e4t korkean munatiheyden. Lahdenperukoilta ja syv\u00e4nteisiin rajoittuvilta rinteilt\u00e4 l\u00f6ytyiv\u00e4t suurimmat \nmunatiheydet. Pohjoisempana ja idemp\u00e4n\u00e4 syv\u00e4nteisiin rajoittuvilla selk\u00e4vesien rannoilla munatiheydet olivat pieni\u00e4. Selk\u00e4vesill\u00e4 ja saarien ymp\u00e4rist\u00f6ss\u00e4 munatiheydet olivat syvemmill\u00e4 vy\u00f6hykkeill\u00e4, kun taas lahdissa ja syv\u00e4nteisiin rajoittuvilla rinteill\u00e4 munatiheydet olivat matalammilla vy\u00f6hykkeill\u00e4.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Exact vendace spawning and egg incubation locations are unknown in the boreal lakes. New egg sampler method was invented in 2018 and it have been tested first time more widely in autumn 2019. In this thesis firstly it was asked that does depth affect egg density and fertilization rate. Secondly it was asked does place affect egg density and fertilization rate. Sampler efficiency, vendace spawning-, and spawning success was measured via a new sampler method. Before vendace spawning 500 egg samplers were installed in the five depth zones in the 20 sampling plots in autumn 2019 in Southern Konnevesi. Fertilized eggs were found in 18 plots out of 20 plots. The mean density of eggs was 74 (SD \u00b1 112) eggs m-2 and the mean fertilization rate 85 % (SD = 24, n = 266). The fertilization rate was quite high overall (zero to hundreds of eggs m-2). Fertilization rates in depth zones did not vary, but between places fertilization rate varied. Differences in egg densities varied from zero to hundred. Egg density varied by depth zone and mostly eggs were in 3\u201312 meters. To shallower and deeper egg density gradually declined. Location on east side of the lake and areas with high mean depth explained high egg densities. Bay areas and slope areas had mostly higher egg densities. Pelagic egg densities were reasonably lower to the north and west side of the lake slope areas. Egg densities were on deeper depth zones in pelagic and isle areas whereas in bay and slope areas egg densities were high in shallower water.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Miia Hakanen (mihakane@jyu.fi) on 2022-06-17T06:50:50Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2022-06-17T06:50:50Z (GMT). No. of bitstreams: 0\n Previous issue date: 2022", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "29", "language": "", "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.language.iso", "value": "fin", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": "en", "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.subject.other", "value": "munaker\u00e4in", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "hedelm\u00f6itysaste", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "paikallinen levinneisyys", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Muikun (Coregonus albula) munaker\u00e4inmenetelm\u00e4n soveltuvuus munatiheyden ja munien tiheysjakauman selvitt\u00e4miseen Etel\u00e4-Konnevedell\u00e4", "language": "", "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "master thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-202206173446", "language": "", "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Master\u2019s thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu -tutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Matemaattis-luonnontieteellinen tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Sciences", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Bio- ja ymp\u00e4rist\u00f6tieteiden laitos", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Department of Biological and Environmental Science", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Akvaattiset tieteet", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Aquatic sciences", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "yvv.contractresearch.funding", "value": "0", "language": "", "element": "contractresearch", "qualifier": "funding", "schema": "yvv"}, {"key": "dc.type.coar", "value": "http://purl.org/coar/resource_type/c_bdcc", "language": null, "element": "type", "qualifier": "coar", "schema": "dc"}, {"key": "dc.rights.accesslevel", "value": "openAccess", "language": null, "element": "rights", "qualifier": "accesslevel", "schema": "dc"}, {"key": "dc.type.publication", "value": "masterThesis", "language": null, "element": "type", "qualifier": "publication", "schema": "dc"}, {"key": "dc.subject.oppiainekoodi", "value": "4012", "language": "", "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "levinneisyys", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "j\u00e4rvet", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "munat", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "tutkimus", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "vaikutukset", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "tiheys", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "el\u00e4intiede", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "muikku", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "vaihtelu", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "hedelm\u00f6itys", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "kutupaikat", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}]
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