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[{"key": "dc.contributor.advisor", "value": "Karjalainen, Juha", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "M\u00e4kinen, Mikko", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2020-06-04T11:40:17Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2020-06-04T11:40:17Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2020", "language": "", "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/69717", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Ilmastonmuutoksen aikaansaama l\u00e4mp\u00f6tilan nousu asettaa haasteita pohjoisille lajeille. Syyskutuisten kalojen lis\u00e4\u00e4ntymiskiertoon vaikuttavat viiv\u00e4styv\u00e4t talven tulot ja aikaistuvat kev\u00e4\u00e4t j\u00e4iden l\u00e4ht\u00f6ineen T\u00e4ss\u00e4 tutkimuksessa testattiin kokeellisesti l\u00e4mp\u00f6tilan ja emokalojen vaikutusta muikun (Coregonus albula) alkion kasvuun (pituus, paino ja ruskuaisen m\u00e4\u00e4r\u00e4), kuoriutumisaikaan ja s\u00e4ilyvyyteen. Kokeessa muodostettiin kolme hedelm\u00f6itysryhm\u00e4\u00e4, joissa kussakin kolmen naaraan m\u00e4timunia hedelm\u00f6itettiin ristiin nelj\u00e4\u00e4n koiraan maidilla yksil\u00f6llisesti. Haudonta tapahtui nelj\u00e4ss\u00e4 eri koel\u00e4mp\u00f6tilassa (8,0 \u00b0C; 6,9 \u00b0C; 4,0 \u00b0C ja 2,2 \u00b0C). Hedelm\u00f6itysryhmien tilastollisten analyysien tulokset yhdistettiin Fisherin menetelm\u00e4\u00e4 k\u00e4ytt\u00e4en. L\u00e4mp\u00f6tila ja emokalat, sek\u00e4 naaras ett\u00e4 koiras, vaikuttivat merkitsev\u00e4sti alkion kasvuun, kuoriutumisaikaan ja s\u00e4ilyvyyteen. Keskim\u00e4\u00e4rin alhaisinta s\u00e4ilyvyys oli 8,0 \u00b0C k\u00e4sittelyss\u00e4. Poikaset saavuttivat 50 % kuoriutumisen 8,0 \u00b0C k\u00e4sittelyss\u00e4 97 vuorokauden j\u00e4lkeen, kun 4,0 \u00b0C k\u00e4sittelyss\u00e4 siihen kului 179 vuorokautta. Perheiden (yhden naaraan ja koiraan alkiot) v\u00e4list\u00e4 vaihtelua havaittiin s\u00e4ilyvyydess\u00e4, kuoriutumisajassa, poikasen pituudessa, ruskuaisen m\u00e4\u00e4r\u00e4ss\u00e4 ja poikasen kuivapainossa. Vaihtelu eri ominaisuuksien v\u00e4lill\u00e4 kuvastaa muikun hyv\u00e4\u00e4 sopeutuvuutta ja joustavuutta yksil\u00f6- ja populaatiotasolla pohjoisiin vaihteleviin oloihin.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "The rise of temperature caused by the climate change challenges the cold-adapted fishes in the northern regions. Late winters and early spring ice-outs affect the reproduction cycle of the autumn spawning fishes. In this experimental study, we examined the effects of temperature and parental effects on the growth (length, weight and yolk volume), hatching time and survival of vendace (Coregonus albula) embryos. The experiment contained three fertilization groups which consisted three females and four males which were cross fertilized individually. Incubation took place at four different experimental temperatures (8,0 \u00b0C; 6,9 \u00b0C; 4,0 \u00b0C and 2,2 \u00b0C). Statistical results from different fertilization groups were combined utilizing Fishers method. Temperature and parents, both female and male, had statistically significant effect on growth, hatching time and survival of the embryos. On average lowest survival was recorded in 8,0 \u00b0C. The larvae attained 50 % hatch in 8,0 \u00b0C after 97 days post fertilization, when in 4,0 \u00b0C in was 179 days. The variation was recorded between families (embryos of one female and male) in survival, hatching time, larvae length, yolk volume and dry weight. This variation in different properties illustrates good adaptability and flexibility in the reproduction of vendace on individual and population level.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Paivi Vuorio (paelvuor@jyu.fi) on 2020-06-04T11:40:17Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2020-06-04T11:40:17Z (GMT). No. of bitstreams: 0\n Previous issue date: 2020", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "37", "language": "", "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.format.mimetype", "value": "application/pdf", "language": null, "element": "format", "qualifier": "mimetype", "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": "vanhempien vaikutus", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Ilmastonmuutoksen vaikutukset siikakalojen varhaiskehitykseen : kokeellinen tutkimus Konneveden muikulla", "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-202006043973", "language": "", "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu -tutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Master\u2019s thesis", "language": "en", "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": "ilmastonmuutokset", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "l\u00e4mp\u00f6tila", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "naaraat", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "poikaset", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "koiraat", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "muikku", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.format.content", "value": "fulltext", "language": null, "element": "format", "qualifier": "content", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}, {"key": "dc.type.okm", "value": "G2", "language": null, "element": "type", "qualifier": "okm", "schema": "dc"}]
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