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[{"key": "dc.contributor.advisor", "value": "Koljonen, Saija", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.advisor", "value": "Syrj\u00e4nen, Jukka", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.advisor", "value": "Marjom\u00e4ki, Timo", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Koski, Alisa", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2021-10-12T05:45:01Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2021-10-12T05:45:01Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2021", "language": "", "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/78182", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Virtavesiymp\u00e4rist\u00f6jen biodiversiteetti heikkenee mm. jokien patoamisen takia. Ekologinen kompensaatio on biodiversiteetin palauttamisen tapa, jossa yhdell\u00e4 alueella tapahtunut ymp\u00e4rist\u00f6n tuhoutuminen kompensoidaan uudella alueella elinymp\u00e4rist\u00f6j\u00e4 rakentamalla. Virtavesiss\u00e4 ekologista kompensaatiota voidaan toteuttaa rakentamalla keinotekoisia habitaatteja. T\u00e4ss\u00e4 tutkielmassa seurattiin keinotekoisen uoman, Imatran kaupunkipuron, taimenpopulaatiota (Salmo trutta L.). Yksi puron teht\u00e4vist\u00e4 on kompensoida Imatrankosken vesivoimalan aiheuttamaa koskiymp\u00e4rist\u00f6n h\u00e4vi\u00e4mist\u00e4. Purosta laskettiin pesien m\u00e4\u00e4r\u00e4 ja m\u00e4titiheys, taimenenpoikasten sorastanousuajankohta arvioitiin Elliottin ja Hurleyn menetelm\u00e4ll\u00e4 ja jokipoikastiheys ja -s\u00e4ilyvyys m\u00e4dist\u00e4 eri ik\u00e4isiksi poikasiksi arvioitiin s\u00e4hk\u00f6koekalastuksella. Tuloksia verrattiin luonnollisiin virtavesiin: sorastanousuajankohtaa ja pes\u00e4- ja m\u00e4titiheytt\u00e4 Partakoskeen ja L\u00e4s\u00e4nkoskeen ja jokipoikastiheytt\u00e4 ja -s\u00e4ilyvyytt\u00e4 Kiertojokeen ja Saajokeen. Imatran kaupunkipuron taimenenpoikasten sorastanousuajankohta ei poikennut luonnontilaisista uomista ja jokipoikastiheys oli korkeampi Imatranpurossa kuin luonnollisissa puroissa. Sorastanousuajankohdan ja alkioiden s\u00e4ilyvyyden samankaltaisuuden ja jokipoikastiheyden perusteella Imatran kaupunkipuro on taimenelle onnistunut kompensaatiohabitaatti, joka pystyy tarjoamaan hyv\u00e4t olosuhteet taimenpopulaatiolle. Pinta-alaltaan ja virtaamaltaan puro on kuitenkin hyvin pieni verrattuna paikalla aikoinaan vapaasti laskeneeseen koskijaksoon.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Biodiversity is declining globally, and lotic environments have not been spared from this problem. In rivers, one of the key causes of biodiversity loss is river damming and its consequences. Habitat offsetting is a way to mitigate biodiversity loss, in which habitat loss in one location is compensated in another. In lotic environments, habitat offsetting can be done using a variety of measures, e.g. mitigation habitat in bypass by a dam or a hydropower plant. In this thesis, a constructed channel in Imatra called Imatra City Brook (ICB) and its brown trout (Salmo trutta L.) population were studied. ICB was built partly to compensate the loss of riffle habitat caused by the Imatrankoski hydropower plant. The emergence period for brown trout fry was estimated and also redd and parr and density and survival were estimated. These indices were compared to natural streams; emergence period and redd density were compared to rivers Partakoski and L\u00e4s\u00e4nkoski, and parr density was compared to streams Kiertojoki and Saajoki. The emergence period did not differ from natural streams, and parr density was significantly higher in ICB than in the reference streams. Redd density was similar to L\u00e4s\u00e4nkoski. Based on the similarity in emergence period and high parr density, ICB seems to meet the needs of brown trout sufficiently and offers a considerably good compensation habitat. However, ICB is a small compensation habitat compared to the area and flow lost under the adjacent hydropower plant.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Paivi Vuorio (paelvuor@jyu.fi) on 2021-10-12T05:45:01Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2021-10-12T05:45:01Z (GMT). No. of bitstreams: 0\n Previous issue date: 2021", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "51", "language": "", "element": "format", "qualifier": "extent", "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": "jokijatkumo", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "patoaminen", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "off-setting", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "river continuity", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "river damming", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Keinotekoinen uoma taimenen (Salmo trutta L.) elinymp\u00e4rist\u00f6n\u00e4 verrattuna luonnonuomiin", "language": "", "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-202110125218", "language": "", "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Master\u2019s thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu -tutkielma", "language": "fi", "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": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "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": "yvv.contractresearch.collaborator", "value": "public", "language": "", "element": "contractresearch", "qualifier": "collaborator", "schema": "yvv"}, {"key": "yvv.contractresearch.funding", "value": "1500", "language": "", "element": "contractresearch", "qualifier": "funding", "schema": "yvv"}, {"key": "yvv.contractresearch.initiative", "value": "business", "language": "", "element": "contractresearch", "qualifier": "initiative", "schema": "yvv"}, {"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": null, "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": "", "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "ekologinen kompensaatio", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "purot", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "virtavedet", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "luonnonsuojelu", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "Imatrankoski", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "Imatra", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "joet", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "kompensointi", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "luonnon monimuotoisuus", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "kalatiet", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "biodiversiteetti", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}]
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