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[{"key": "dc.contributor.author", "value": "Peltola, Mikko", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2013-06-03T11:52:10Z", "language": "", "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2013-06-03T11:52:10Z", "language": "", "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:1268789", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/41673", "language": "", "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Sy\u00f6nn\u00f6svaellus ja nopea kasvu ovat olennainen osa Atlantin lohen (Salmo salar L.) ekologiaa, niinp\u00e4 kasvunopeuden selvitt\u00e4minen on t\u00e4rke\u00e4 osa kalatutkimusta. Tuottavimmat sy\u00f6nn\u00f6salueet tulisi tiet\u00e4\u00e4, jotta olisi mahdollista suojella villej\u00e4 sek\u00e4 kalastaa istutettuja lohia kest\u00e4v\u00e4n k\u00e4yt\u00f6n periaatteella. T\u00e4m\u00e4n tutkimuksen tavoitteina oli selvitt\u00e4\u00e4 It\u00e4meress\u00e4 el\u00e4v\u00e4n villin ja viljellyn Atlantin lohen kasvunopeuden eroja vuosien ja merialueiden v\u00e4lill\u00e4. Lis\u00e4ksi pyrittiin selvitt\u00e4m\u00e4\u00e4n, vaikuttavatko saalislajien runsaus, saalislajisuhteet lohen ravinnossa ja veden l\u00e4mp\u00f6tila kasvunopeuteen. Absoluuttinen pituuskasvu arvioitiin takautuvalla kasvunm\u00e4\u00e4rityksell\u00e4 suomuista vuosilta 1989\u20132010. Suomut oli ker\u00e4tty p\u00e4\u00e4sy\u00f6nn\u00f6salueilta (ICES osa-alueet (SDt) 25, 26, 28, 30 ja 32). Villin lohen ensimm\u00e4isen merivuoden kasvu oli nopeinta SD25:st\u00e4 (p\u00e4\u00e4allas) ja hitainta SD30:sta (Selk\u00e4meri) pyydetyill\u00e4 yksil\u00f6ill\u00e4, kun taas viljellyn lohen kasvu oli nopeinta SD32:sta (Suomenlahti) ja hitainta SD26:sta (p\u00e4\u00e4allas) pyydetyill\u00e4 yksil\u00f6ill\u00e4. Villin lohen toisen merivuoden kasvu oli nopeinta SD28:sta (p\u00e4\u00e4allas) ja hitainta SD30:sta pyydetyill\u00e4 yksil\u00f6ill\u00e4. Viljellyn lohen toisen merivuoden kasvu oli nopeinta SD25:st\u00e4 ja hitainta Selk\u00e4merelt\u00e4 pyydetyill\u00e4 yksil\u00f6ill\u00e4. Villin lohen molempien merivuosien kasvunopeudessa oli nouseva trendi l\u00e4pi tutkimusjakson ensimm\u00e4isen merivuoden kasvun ollessa viime vuosina keskim\u00e4\u00e4rin 25 cm ja toisen merivuoden kasvun 30 cm vuodessa. Tutkimusjakson alussa viljellyn lohen ensimm\u00e4isen merivuoden kasvu oli noin 20 cm, mutta 1994 l\u00e4htien se on ollut 25 cm vuodessa. Viljellyn lohen toisen merivuoden kasvu oli tutkimusjakson alussa alle 15 cm, josta se on kohonnut l\u00e4hes 30 cm:iin vuodessa. Villin lohen keskim\u00e4\u00e4r\u00e4inen kasvu oli nopeampaa molempien merivuosien aikana verrattuna viljeltyyn. Korkeamman lohen trofiatason ja suuremman kasvunopeuden v\u00e4lill\u00e4 havaittiin yhteys ensimm\u00e4isen merivuoden aikana p\u00e4\u00e4altaalla, mik\u00e4 viittaa saalislajisuhteiden vaikuttavan kasvunopeuteen. L\u00e4mpim\u00e4mm\u00e4n veden ja hitaamman ensimm\u00e4isen merivuoden aikaisen kasvun v\u00e4lill\u00e4 havaittiin yhteys Suomenlahdella sek\u00e4 l\u00e4mpim\u00e4mm\u00e4n veden ja hitaamman toisen merivuoden aikaisen kasvun v\u00e4lill\u00e4 p\u00e4\u00e4altaalla. It\u00e4meren lohella vaikuttaa olevan alueiden ja vuosien v\u00e4lisi\u00e4 eroja kasvunopeudessa. T\u00e4m\u00e4n tutkimuksen perusteella ne n\u00e4ytt\u00e4v\u00e4t johtuvan lohen alkuper\u00e4st\u00e4, ravinnonk\u00e4yt\u00f6st\u00e4 ja veden l\u00e4mp\u00f6tilasta.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "The feeding migration to the sea and the associated faster growth is an essential part of the ecology and life history of Atlantic salmon (Salmo salar L.). Thus the quantification of growth is an important part of fisheries research. The most productive feeding areas have a key role in the conservation of wild stocks and at the same time ensuring sustainable exploitation of reared stocks. The aims of this study were to investigate if there are spatial, temporal and stock (wild, reared) related differences in the growth of salmon in the Baltic Sea and to determine if individual diet preferences, prey species stock abundance and water temperature affect growth. The absolute length growth of Baltic salmon first and second sea growth season was back-calculated from time series (1989\u20132010) of archived salmon scales obtained from the main salmon feeding areas (ICES subdivisions (SDs) 25, 26, 28, 30 and 32). During first sea growth season wild salmon caught from SD25 (Main Basin) were fastest growing and individuals caught from SD30 (Bothnian Sea) grew slowest. Reared salmon caught from SD32 (Gulf of Finland) grew fastest during first sea growth season and individuals caught from SD26 (Main Basin) the slowest. During second sea growth season wild salmon caught from SD28 (Main Basin) were fastest growing and individuals caught from SD30 grew slowest. Reared salmon caught from SD25 had the fastest growth during second sea growth season and individuals caught from SD30 the slowest. There was a general increasing trend in the growth of wild salmon, recent growth during first sea growth season being annually 25 cm and during second sea growth season 30 cm. At the beginning of the study period reared salmon growth during first sea growth season was 20 cm, but since 1994 it has stayed close to 25 cm. Their growth during second sea growth season has been increasing through-out the study period from <15 cm close to 30 cm. Wild salmon grew faster than their reared counterparts during both sea growth seasons. Higher trophic position of salmon was associated with increased growth during second sea growth season in the Main Basin. Since trophic position reflects dietary behaviour, this indicates that diet has an influence on growth. Warmer water was associated with decreased growth during first sea growth season in the Gulf of Finland and during second sea growth season in the Main Basin. Salmon populations in the Baltic Sea seem to possess spatial and temporal differences in growth. This study suggests that these differences are explained by stock, dietary prevalence and water temperature.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Mikko Peltola (mitapelt) on 2013-06-03 11:52:09.594566. 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 2013-06-03T11:52:10Z\r\nNo. of bitstreams: 2\r\nURN:NBN:fi:jyu-201306031876.pdf: 1530213 bytes, checksum: aaaefc296c643f26d537b0cf386776cb (MD5)\r\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 2013-06-03T11:52:10Z (GMT). No. of bitstreams: 2\r\nURN:NBN:fi:jyu-201306031876.pdf: 1530213 bytes, checksum: aaaefc296c643f26d537b0cf386776cb (MD5)\r\nlicense.html: 107 bytes, checksum: a7d86e598caa500b1b433bbb9dc8ef1c (MD5)\r\n Previous issue date: 2013", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "23 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": "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": "Atlantic salmon", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "Back-calculation", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "Baltic Sea", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "growth", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "Atlantin lohi", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "It\u00e4meri", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "kasvu", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "Salmo salar", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "takautuva kasvunm\u00e4\u00e4ritys", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Spatio-temporal differences in the growth of wild and reared Atlantic salmon (Salmo salar L.) in the Baltic Sea", "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-201306031876", "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.date.updated", "value": "2013-06-03T11:52:10Z", "language": "", "element": "date", "qualifier": "updated", "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": 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