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[{"key": "dc.contributor.advisor", "value": "Kiljunen, Mikko", "language": null, "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.advisor", "value": "Torniainen, Jyrki", "language": null, "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Valkonen, Jani", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2015-04-07T08:43:01Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2015-04-07T08:43:01Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2014", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.other", "value": "oai:jykdok.linneanet.fi:1472005", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/45599", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Lohella on t\u00e4rke\u00e4 taloudellinen ja ekologinen merkitys It\u00e4meress\u00e4. Aikaisemmin It\u00e4meren lohen vaelluksia on tutkittu p\u00e4\u00e4asiassa ryhm\u00e4merkinn\u00f6ill\u00e4. T\u00e4ss\u00e4 tutkimuksessa selvitettiin, voidaanko lohen suomun vakaiden isotooppien arvoilla (\u03b413C ja \u03b415N) selvitt\u00e4\u00e4 lohen sy\u00f6nn\u00f6svaellusta, voiko suomulla korvata lihasn\u00e4ytteet tutkimuksessa kaloja tappamatta sek\u00e4 mik\u00e4 on yleisesti kalojen suomujen isotooppitutkimuksessa k\u00e4ytetyn happohuuhtelun vaikutus hiilen ja typen isotooppiarvoihin. Suomuista leikattiin sis\u00e4- ja ulko-osat. Suomun ulko-osa kuvaa viimeist\u00e4 merivuotta, joka heijastaa parhaiten lohen viimeist\u00e4 sy\u00f6nn\u00f6svaellusaikaa It\u00e4meress\u00e4. Leikattuja suomujen osia k\u00e4siteltiin 1,2 N suolahapolla (HCl) kaksi minuuttia. Happohuuhtelu poistaa vedest\u00e4 tullutta ep\u00e4orgaanista hiilt\u00e4 ja parantaa ravinnosta tulleen orgaanisen hiilen havaitsemista. Happohuuhtelulla havaittiin tilastollisesti merkitsev\u00e4 ero suomun k\u00e4sittelem\u00e4tt\u00f6mien ja happohuuhdeltujen sis\u00e4- ja ulko-osien v\u00e4lill\u00e4. Happohuuhtelu suurensi suomun ulko- ja sis\u00e4osan \u03b413C-arvoja 1,1 ja 0,14 \u2030-yksikk\u00f6\u00e4. Vastaavasti happohuuhtelu suurensi suomun ulko-osan \u03b415N-arvoa 1,0 \u2030-yksikk\u00f6\u00e4. Happohuuhtelulla osoitettiin merkitys my\u00f6s ulko-osaan, jonka \u03b415N-arvo oli 1,1-yksikk\u00f6\u00e4 suurempi kuin happohuuhdellun sis\u00e4osan. T\u00e4m\u00e4n tutkimuksen perusteella on suositeltavaa k\u00e4ytt\u00e4\u00e4 It\u00e4meren lohien vaellustutkimuksissa suomun happohuuhdeltua ulko-osaa. Suomun happohuuhdellun ulko-osan perusteella 60\u201370 % Kemijoen lohista k\u00e4ytti viimeisen merivuoden sy\u00f6nn\u00f6salueenaan It\u00e4meren p\u00e4\u00e4allasta ja etel\u00e4ist\u00e4 It\u00e4merta. Lohista 20 % j\u00e4i sy\u00f6nn\u00f6kselle Selk\u00e4merelle ja 10\u201330 % vaelsi sy\u00f6nn\u00f6kselle Suomenlahdelle. Suomun happohuuhdellun ulko-osan isotooppiarvojen (\u03b413C ja \u03b415N) todettiin parhaiten korreloivan rasvakorjatun lihaksen kanssa. T\u00e4m\u00e4n tutkimuksen perusteella suomuilla voidaan korvata lihasn\u00e4ytteet. T\u00e4m\u00e4n tutkimuksen perusteella parantamalla lihaksen ja happohuuhdellun suomun ulko-osan lineaarista riippuvuutta olisi mahdollista k\u00e4ytt\u00e4\u00e4 korjauskerrointa 1,1 \u2030-yksikk\u00f6\u00e4 tarkentamaan tuloksia", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Atlantic salmon (Salmo salar L.) has important economic and ecological values in the Baltic Sea. Previously, Carlin tagging has been one of the most used methods in salmon migration studies. This study aims were to find out how useful tool is salmon scale stable isotope analysis (SIA) (\u03b413C and \u03b415N) in salmon migration studies, could scale replace muscle as a nonlethal research method in stable isotope analysis and what is the impact of widely used 1.2 N HCl pre-treatment in fish scale isotope studies on carbon and nitrogen isotope values. Acidifying removes the exogenous ambient water origin carbon attached in calcium carbonate. Therefore remaining carbon represents more of diet origin. Scales were cut in two sets representing inner and outer portion and acidified 1.2 N for two minutes. Outer acidified portion of scale was a good proxy for reflecting final feeding areas during salmon migration. When comparing scale acidified and unacidified portions (\u03b413C) all cases were found statistically significant. The \u03b413C-values of acidified inner and outer portions (0.14 and 1.1 \u2030) were greater than those of unacidified parts. Respectively \u03b415N-value of acidified portion was 1.0 \u2030 greater than unacidified. Whereas outer acidified portion was 1.1 \u2030 greater than outer unacidified portion. This study recommends using scales outer acidified part for migration studies. Acidified outer part of scale reflected migration routes of final feeding season. 60-70 % of Kemijoki origin salmon were occupying southern Baltic Proper and the Main area as a final feeding area. 20 % of salmon fed in Bothnian Sea and 10-30 % of salmon fed in Gulf of Finland. Comparing scale and lipid corrected muscle isotope values, strongest correlation was between muscle and outer acidified portion. In this study it is possible to use correction factor if the linear relationship between muscle and outer acidified portion of the scales can be enhanced.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Jani Valkonen (jatavalk) on 2015-04-07 08:43:00.538550. Form: Pro gradu -lomake (https://kirjasto.jyu.fi/julkaisut/julkaisulomakkeet/pro-gradu-lomake). JyX data: [jyx_publishing-allowed (fi) =True]", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by jyx lomake-julkaisija (jyx-julkaisija@noreply.fi) on 2015-04-07T08:43:01Z\nNo. of bitstreams: 2\nURN:NBN:fi:jyu-201504071547.pdf: 864844 bytes, checksum: 4e18c66c052b4f20066822afab8d13b9 (MD5)\nlicense.html: 4841 bytes, checksum: ddff76dad97cc393f31b7b7ad0e37e6c (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2015-04-07T08:43:01Z (GMT). No. of bitstreams: 2\nURN:NBN:fi:jyu-201504071547.pdf: 864844 bytes, checksum: 4e18c66c052b4f20066822afab8d13b9 (MD5)\nlicense.html: 4841 bytes, checksum: ddff76dad97cc393f31b7b7ad0e37e6c (MD5)\n Previous issue date: 2014", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "1 verkkoaineisto (28 sivua)", "language": null, "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": "happohuuhtelu", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "hiili", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "isotooppianalyysi", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "lihas", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "typpi", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Suomun vakaat isotoopit It\u00e4meren lohen (Salmo salar L.) sy\u00f6nn\u00f6svaellustutkimuksessa", "language": null, "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-201504071547", "language": null, "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu 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Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "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": "dc.date.updated", "value": "2015-04-07T08:43:01Z", "language": null, "element": "date", "qualifier": "updated", "schema": "dc"}, {"key": "yvv.contractresearch.funding", "value": "0", "language": null, "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", 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