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[{"key": "dc.contributor.author", "value": "Salonen, Jouni", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2010-06-24T06:48:25Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2010-06-24T06:48:25Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2010", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.other", "value": "oai:jykdok.linneanet.fi:1131957", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/24504", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Reliktisten makro\u00e4yri\u00e4isten elintapoja on tutkittu maailmanlaajuisestikin h\u00e4mm\u00e4stytt\u00e4v\u00e4n v\u00e4h\u00e4n eik\u00e4 etenk\u00e4\u00e4n elinymp\u00e4rist\u00f6ns\u00e4 suhteen vaativana pidetyst\u00e4 j\u00e4ttikatkasta (Gammaracanthus lacustris) ole tehty julkaisuja juuri lainkaan. Tutkimuksen tavoitteena oli selvitt\u00e4\u00e4 lajin syvyyskohtaisia koko-, tiheys- ja sukupuolijakaumia sek\u00e4 eri vuosien ja alueiden v\u00e4lisi\u00e4 eroja Saimaan Paasivedell\u00e4. Lokakuussa 2006 \u2013 2008 30 m alapuolisista vesikerroksista otetuista n\u00e4ytteist\u00e4 saatiin samalla tietoa my\u00f6s j\u00e4\u00e4nnehalkoisjalkaisen (Mysis relicta) vertikaalijakaumista samoissa olosuhteissa. My\u00f6s oka- (Pallaseopsis quadrispinosa) ja valkokatkaa (Monoporeia affinis) tavattiin joitakin yksil\u00f6it\u00e4. Mahdollisesti jopa nelj\u00e4vuotiaaksi el\u00e4v\u00e4n j\u00e4ttikatkan havaittiin suosivan syvimpi\u00e4 vesikerroksia, sill\u00e4 keskitiheys kasvoi tasaisesti syvemm\u00e4lle ment\u00e4ess\u00e4. My\u00f6s pituuden ja syvyyden v\u00e4lill\u00e4 oli positiivinen yhteys, eli erityisesti vanhemmat yksil\u00f6t viihtyv\u00e4t syvemm\u00e4ll\u00e4. Syv\u00e4lt\u00e4 (50 \u2013 60 m) saadut j\u00e4ttikatkat olivat lis\u00e4ksi useammin naaraita, ja kantavan naaraan alkioiden lukum\u00e4\u00e4r\u00e4 kasvoi yksil\u00f6n pituuden my\u00f6t\u00e4. J\u00e4ttikatkojen pituuksissa ja tiheyksiss\u00e4 oli selvi\u00e4 vuosien v\u00e4lisi\u00e4 eroja: erityisesti vuonna 2006 j\u00e4ttikatkat olivat monilla syvyyksill\u00e4 kookkaampia ja niiden tiheys oli suurempi kuin vertailuvuosina. Alueiden v\u00e4liset erot olivat sen sijaan l\u00e4hes olemattomia. Kaikkiaan Paasiveden alueella el\u00e4\u00e4 arviolta 90 000 000 j\u00e4ttikatkaa. My\u00f6s j\u00e4\u00e4nnehalkoisjalkaisten isokokoisimmat yksil\u00f6t n\u00e4ytt\u00e4v\u00e4t viihtyv\u00e4n syvemm\u00e4ll\u00e4 kuin nuoremmat, sill\u00e4 yksil\u00f6pituus korreloi positiivisesti syvyyteen. Sen sijaan keskitiheys oli suurimmillaan matalimmissa tutkimussyvyyksiss\u00e4 (30 \u2013 35 m), ja tiheyden ja syvyyden v\u00e4linen korrelaatio olikin negatiivinen. Vuosien v\u00e4lisi\u00e4 eroja havaittiin keskipituudessa, joka oli vuonna 2006 l\u00e4hes jokaisessa syvyysvy\u00f6hykkeess\u00e4 suurempi kuin muina vuosina. Alueiden v\u00e4lisi\u00e4 merkitsevi\u00e4 eroja ei j\u00e4\u00e4nnehalkoisjalkaistenkaan keskitiheyksiss\u00e4 tai -pituuksissa ollut.", "language": null, "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Jouni Salonen (josalone) on 2010-06-24 06:48:21.098786. Form: Pro gradu -lomake (1 tekij\u00e4) (https://kirjasto.jyu.fi/julkaisut/julkaisulomakkeet/pro-gradu-lomake-1-tekijae). JyX data:", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by jyx lomake-julkaisija (jyx-julkaisija@noreply.fi) on 2010-06-24T06:48:25Z\r\nNo. of bitstreams: 2\r\nURN:NBN:fi:jyu-201006242150.pdf: 941756 bytes, checksum: 0eaeef411269eff7258cbf8ac85b0c5d (MD5)\r\nlicense.html: 5064 bytes, checksum: 13cc0fed0f32ad6c5026142c25a54834 (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2010-06-24T06:48:25Z (GMT). No. of bitstreams: 2\r\nURN:NBN:fi:jyu-201006242150.pdf: 941756 bytes, checksum: 0eaeef411269eff7258cbf8ac85b0c5d (MD5)\r\nlicense.html: 5064 bytes, checksum: 13cc0fed0f32ad6c5026142c25a54834 (MD5)\r\n Previous issue date: 2010", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "38 s", "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": "makro\u00e4yri\u00e4inen", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "relikti", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "vertikaalijakauma", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "J\u00e4ttikatkan (Gammaracanthus lacustris) ja j\u00e4\u00e4nnehalkoisjalkaisen (Mysis relicta) koko- ja tiheysjakaumat Saimaan Paasivedell\u00e4", "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-201006242150", "language": null, "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.dcmitype", "value": "Text", "language": "en", "element": "type", "qualifier": "dcmitype", "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": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": 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null, "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "\u00e4yri\u00e4iset", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "koko", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "Saimaa", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "Paasselk\u00e4", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "Paasivesi", "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": 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