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[{"key": "dc.contributor.author", "value": "Mykr\u00e4, Marjut", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2010-08-09T08:47:35Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2010-08-09T08:47:35Z", "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:1134534", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/24825", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "T\u00e4pl\u00e4rapu (Pacifastacus leniusculus) on tulokaslaji Suomen vesist\u00f6iss\u00e4. Sen on k\u00e4ytt\u00e4ytymisell\u00e4\u00e4n ja ravinnonk\u00e4yt\u00f6ll\u00e4\u00e4n todettu v\u00e4hent\u00e4v\u00e4n elinalueidensa eli\u00f6yhteis\u00f6jen monimuotoisuutta. Esimerkiksi P\u00e4ij\u00e4nteell\u00e4 on havaittu joidenkin pohjael\u00e4inten kuten kotiloiden tiheyksien olevan alhaisempia ravun elinalueilla kuin ravuttomilla alueilla. Pohjaselk\u00e4rangattomat ovat v\u00e4ltt\u00e4m\u00e4tt\u00f6mi\u00e4 v\u00e4li-is\u00e4nti\u00e4 monelle kalan loiselle. T\u00e4ss\u00e4 tutkimuksessa selvitettiin, millaisia muutoksia t\u00e4pl\u00e4rapu voi v\u00e4lillisesti aiheuttaa kalojen loisyhteis\u00f6iss\u00e4 muuttamalla pohjael\u00e4inten runsautta. P\u00e4ij\u00e4nteelt\u00e4 valittiin viisi toisistaan riippumatonta ravullista ja ravutonta aluetta. Jokaiselta alueelta pyydettiin mahdollisimman samankokoisia ahvenia, joista tutkittiin kaikki loiset, joilla on ep\u00e4suora el\u00e4m\u00e4nkierto. Alueilla, joilla raputiheys oli korkea, havaittiin ahventen v\u00e4lill\u00e4 suurempaa vaihtelua loisyhteis\u00f6iss\u00e4 kuin alueilla, joilta rapu puuttui tai niiden tiheys oli alhainen. Vaikka loisittujen kalojen osuudet tutkituista kaloista eiv\u00e4t mink\u00e4\u00e4n loislajin kohdalla eronneet merkitsev\u00e4sti ravullisten ja ravuttomien alueiden v\u00e4lill\u00e4, oli Ichthyocotylurus pileatus (Trematoda) ja Acanthocephalus lucii (Acanthocephala) -loisia merkitsev\u00e4sti v\u00e4hemm\u00e4n ravullisten kuin ravuttomien alueiden ahvenissa. Kun vertailtiin samasta v\u00e4li-is\u00e4nt\u00e4ryhm\u00e4st\u00e4 tulevia loisia ryhm\u00e4n\u00e4, oli kotiloita ja muita pohjael\u00e4imi\u00e4 paitsi simpukoita v\u00e4li-is\u00e4ntin\u00e4\u00e4n k\u00e4ytt\u00e4vi\u00e4 loisia v\u00e4hemm\u00e4n ravullisilla alueilla. Tulosten perustella t\u00e4pl\u00e4rapu voi v\u00e4lillisesti vaikuttaa erityisesti kotiloista tulevien loisten m\u00e4\u00e4r\u00e4\u00e4n ahvenissa. Havaitut erot ahventen loispopulaatioissa ovat todiste siit\u00e4, kuinka monimuotoisia vaikutuksia t\u00e4pl\u00e4ravulla tulokaslajina voi olla suurj\u00e4rvien eli\u00f6yhteis\u00f6ihin.", "language": "", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Marjut Mykr\u00e4 (mamimykr) on 2010-08-09 08:47:33.041798. 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 2010-08-09T08:47:35Z\nNo. of bitstreams: 2\nURN:NBN:fi:jyu-201008092418.pdf: 467591 bytes, checksum: f51bf8d0f965310699b3d8c5462ce680 (MD5)\nlicense.html: 5044 bytes, checksum: 02a21390512297f75aff8bb02fa5774e (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2010-08-09T08:47:35Z (GMT). No. of bitstreams: 2\nURN:NBN:fi:jyu-201008092418.pdf: 467591 bytes, checksum: f51bf8d0f965310699b3d8c5462ce680 (MD5)\nlicense.html: 5044 bytes, checksum: 02a21390512297f75aff8bb02fa5774e (MD5)\n Previous issue date: 2010", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "26 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": "t\u00e4pl\u00e4rapu", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "v\u00e4lillinen vaikutus", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "loinen", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "ep\u00e4suora el\u00e4m\u00e4nkierto", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "v\u00e4li-is\u00e4nt\u00e4", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "Acanthocephalus lucii", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "Ichthyocotylurus pileatus", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "T\u00e4pl\u00e4ravun (Pacifastacus leniusculus) vaikutus ahventen (Perca fluviatilis) loisyhteis\u00f6ihin P\u00e4ij\u00e4nteell\u00e4", "language": null, 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"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": "t\u00e4pl\u00e4rapu", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "loiset", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "vesist\u00f6t", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "ahven", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "is\u00e4nt\u00e4lajit", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "P\u00e4ij\u00e4nne", "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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