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[{"key": "dc.contributor.author", "value": "Vesterinen, Jussi", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2013-08-17T13:54:16Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2013-08-17T13:54:16Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2013", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.other", "value": "oai:jykdok.linneanet.fi:1277848", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/41990", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Suurin osa koko ja\u0308rven perustuotantoa ka\u0308sittelevista\u0308 tutkimusta on tehty oligotrofisissa tai eutrofisissa ja\u0308rvissa\u0308 ja va\u0308ha\u0308n on tutkittu dystrofisten ja\u0308rvien toimintaa. Ta\u0308ma\u0308n tutkimuksen tarkoitus oli selvitta\u0308a\u0308 litoraalivyo\u0308hykkeen perustuotannon osuutta koko ja\u0308rven perustuotannosta dystrofisessa Mekkoja\u0308rvessa\u0308 vuonna 2012. Mekkoja\u0308rvessa\u0308 on korkeat liuennen orgaanisen hiilen (DOC) ja humushappojen pitoisuudet ja na\u0308iden tuloksena eritta\u0308in matala valon tunkeutuvuus, suhteellisen matala ravinnepitoisuus ja suhteellisen korkea keskisyvyyden suhde maksimisyvyyteen. Mallit, jotka perustuvat edella\u0308 mainittuihin parametreihin, ennustavat pohjaleville vain 5 % osuutta kokonaisperustuotannosta Mekkoja\u0308rvessa\u0308. Pelagiaalin perustuotanto mitattiin kustakin kerrostuneisuusvyo\u0308hykkeesta\u0308 ka\u0308ytta\u0308en 14C-menetelma\u0308a\u0308. Epifyyttista\u0308 leva\u0308a\u0308 poimittiin ja na\u0308ytteet inkuboitiin ja\u0308rvessa\u0308 seka\u0308 valossa etta\u0308 pimea\u0308ssa\u0308, ja litoraalin perustuotanto mitattiin epa\u0308orgaanisen hiilen eroista valo- ja pimea\u0308na\u0308ytteissa\u0308 seka\u0308 ja\u0308rvivedessa\u0308. Koko pa\u0308iva\u0308n litoraalin perustuotanto laskettiin. Pelagiaalin perustuotannossa havaittiin selva\u0308 keva\u0308thuippu, jonka ja\u0308lkeen laskeva trendi syksya\u0308 kohti menta\u0308essa\u0308. Pelagiaalin perustuotanto pysyi matalana keva\u0308thuipun ja\u0308lkeen. Litoraalin perustuotanto oli suhteellisen voimakasta la\u0308pi kesa\u0308n. Koko ja\u0308rven estimaatit ennustavat jopa yli 90 % osuutta litoraalin perustuotannolle kesa\u0308lla\u0308, kun taas keva\u0308a\u0308lla\u0308 ja syksylla\u0308 pelagiaalin perustuotannon osuus on suurempi.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Most studies investigating whole-lake PP have focused on oligotrophic or eutrophic lakes and little attention to dystrophic lakes have been paid. The aim of this thesis was to determine the contribution of littoral PP to whole-lake PP in dystrophic Mekkoja\u0308rvi in 2012. Lake Mekkoja\u0308rvi has high dissolved organic carbon (DOC) and humic acid concentrations, and as a result, very low light penetration. Mekkoja\u0308rvi is kettle-shaped and has relatively low nutrient availability. Models based on these chemical and physical factors predict that benthic algal contributions to whole-lake primary production (PP) in Mekkoja\u0308rvi could be as low as less than 5 %. Pelagic PP was measured from each strata by using 14C incorporation method. Epiphytic algae was sampled and incubated in situ in both dark and light, and littoral PP values were measured from the difference of DIC in light and dark vials and in water. Daily rates for littoral PP were calculated. Clear spring maximum in pelagic PP was observed in early-June, followed by sharp decline. Pelagic PP remained low through the remained of summer. Littoral PP was relatively high throughout the summer. Whole-lake estimates indicate that littoral contribution to whole-lake PP can be over 90 % in summer, while pelagic contributions are higher in spring and in autumn.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Jussi Vesterinen (jupevest) on 2013-08-17 13:54:16.401907. 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 2013-08-17T13:54:16Z\nNo. of bitstreams: 2\nURN:NBN:fi:jyu-201308172166.pdf: 1023770 bytes, checksum: d9641d11b271e71598097cb87d9cf1ab (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 2013-08-17T13:54:16Z (GMT). No. of bitstreams: 2\nURN:NBN:fi:jyu-201308172166.pdf: 1023770 bytes, checksum: d9641d11b271e71598097cb87d9cf1ab (MD5)\nlicense.html: 107 bytes, checksum: a7d86e598caa500b1b433bbb9dc8ef1c (MD5)\n Previous issue date: 2013", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "1 verkkoaineisto", "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": "eng", "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": "DOC", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "dystrophic", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "littoral", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "periphyton", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "phytoplankton", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "whole-lake experiment", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Littoral contribution to whole-lake primary production in highly humic Lake Mekkoj\u00e4rvi", "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-201308172166", "language": 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"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.date.updated", "value": "2013-08-17T13:54:17Z", "language": null, "element": "date", "qualifier": "updated", "schema": "dc"}, {"key": "dc.type.coar", "value": 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