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[{"key": "dc.contributor.author", "value": "Kaski, Outi", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2011-03-21T09:50:56Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2011-03-21T09:50:56Z", "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:1154141", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/26683", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Voimakkaasti humuksisessa Mekkoj\u00e4rvess\u00e4 Daphnia longispina hallitsee j\u00e4rven el\u00e4inplanktonia\nl\u00e4pi kes\u00e4n. Daphnioiden kasvu hidastuu loppukes\u00e4\u00e4 kohti kasviplanktonin\nm\u00e4\u00e4r\u00e4n v\u00e4hetess\u00e4, ja ravinnosta jopa 73 % koostuu bakteeriplanktonista, jonka katsotaan\nolevan heikompi ravinnonl\u00e4hde Daphnioille. Is\u00e4nn\u00e4n ravitsemuksen laadulla voi olla joko\npositiivisia tai negatiivisia vaikutuksia vesikirpun loisintaan ja sen runsauteen. Lammin\nMekkoj\u00e4rvell\u00e4 selvitettiin ravinnelis\u00e4yksen v\u00e4lillist\u00e4 vaikutusta vesikirppujen loisintaan\nkuuden viikon mittaisessa ravinnemanipulaatiokokeessa kuudessa mesokosmoksessa\nkes\u00e4ll\u00e4 2008. Kolme mesokosmosta sai viikottaisen ep\u00e4orgaanisen typpi- ja\nfosforilis\u00e4yksen ja kolme allasta toimi kontrolleina. Ravinnelis\u00e4ys kaksinkertaisti\nep\u00e4orgaanisen fosforin m\u00e4\u00e4r\u00e4n vedess\u00e4, fosforin ja ep\u00e4orgaanisen typen suhde lis\u00e4yksess\u00e4\noli 1:10. a-Klorofylli sek\u00e4 bakteeriplanktonin biomassa ja tiheys eiv\u00e4t eronneet\nk\u00e4sittelyiden v\u00e4lill\u00e4. Vesikirppujen yksil\u00f6tiheys ei poikennut eri k\u00e4sittelyiss\u00e4, mutta\nD. longispinan keskikoko oli suurempi ravinnek\u00e4sitellyiss\u00e4 altaissa. Vesikirpuilla esiintyi\nnelj\u00e4\u00e4 eri loislajia kokeen aikana: ulkoloinen Vorticella sp., mikrosporidit Larssonia\nobtusa ja USGP (Unknown Small Gut Parasite) sek\u00e4 ameebamainen ULGP (Unknown\nLarge Gut Parasite). USGP:n epidemia kasvoi kokeen aikana ja sen infektioprosentit\nerosivat tilastollisesti merkitsev\u00e4sti k\u00e4sittelyjen v\u00e4lill\u00e4 kokeen lopussa ollen suuremmat\nravinnek\u00e4sitellyiss\u00e4 altaissa. Muiden loisten esiintyminen oli satunnaista tai niiss\u00e4 ei\nhavaittu eroja eri k\u00e4sittelyiden v\u00e4lill\u00e4. USGP -loisen runsastuminen johtui mahdollisesti\nsiit\u00e4, ett\u00e4 Daphnia longispinan ravinto-olosuhteet olivat paremmat ravinnek\u00e4sitellyiss\u00e4\naltaissa. T\u00e4t\u00e4 tukee se, ett\u00e4 Daphnioiden kasvu ei hidastunut loppukes\u00e4ll\u00e4, kuten aiemmissa\ntutkimuksissa on havaittu.", "language": null, "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Miia Hakanen (mihakane) on 2011-03-21 09:50:55.092133. Form: Admin-lomake Pro gradu -t\u00f6ille (https://kirjasto.jyu.fi/julkaisut/julkaisulomakkeet/admin-lomake-pro-gradu-toille). 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 2011-03-21T09:50:56Z\nNo. of bitstreams: 2\nURN:NBN:fi:jyu-201103211904.pdf: 633523 bytes, checksum: a4951a16fc3444227c09625032b652d8 (MD5)\nlicense.html: 107 bytes, checksum: a7d86e598caa500b1b433bbb9dc8ef1c (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2011-03-21T09:50:56Z (GMT). No. of bitstreams: 2\nURN:NBN:fi:jyu-201103211904.pdf: 633523 bytes, checksum: a4951a16fc3444227c09625032b652d8 (MD5)\nlicense.html: 107 bytes, checksum: a7d86e598caa500b1b433bbb9dc8ef1c (MD5)\n Previous issue date: 2010", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "35 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": "ravinnemanipulaatio", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "mesokosmos", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "mikrosporidi", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Ravinteiden vaikutus vesikirpun (Daphnia longispina) loisintaan Mekkoj\u00e4rvell\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-201103211904", "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": "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.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": "fi", "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": null, "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "loiset", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "humusj\u00e4rvet", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "ravintoverkot", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "vesikirput", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "plankton", "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", 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