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[{"key": "dc.contributor.author", "value": "Kopra, Juho", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2014-01-16T19:11:36Z", "language": "", "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2014-01-16T19:11:36Z", "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:1291207", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/42811", "language": "", "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "In this work, the aim was to produce a realistic assessment of yearly mortality\r\nof Archipelago Sea pike perch during the period 1997-2012. The utilized data\r\norigins from the mark-recapture experiment carried out by the Finnish Game\r\nand Fisheries Research Institute (FGFRI). In this mark-recapture experiment,\r\nreturnings of the marks were based on voluntary tag reporting by the fishermen\r\ngaining small monetary rewards. In this study design, the count of returned tags\r\nis affected by the size of the release cohort, efficiency of the fishing method used\r\nby a fisherman and the fisherman\u2019s willingness to return the tag. In addition,\r\neach year a proportion of the tags become detached from fish, which means that\r\nthose tags cannot be returned. All these factors were taken into account in a\r\nhierarchical model, which was developed in the same fashion as the well-known\r\nCormack-Jolly-Seber model. Data from the yearly total catch were not used in\r\nthis work because those data will be used in the subsequent research utilizing\r\nresults of this work.\r\nThe objective of this work was to estimate fishing gear specific catchability\r\ncoefficients and mortality rates, including natural mortality rate. The amount\r\nof data and number of parameters to be estimated set their own limitations,\r\nso it was decided to estimate parameters of interest by splitting the data into\r\nonly three fishing fleets: professional fishermen, recreational net fishermen and\r\nrecreational line fishermen.\r\nThe estimability of the hierarchical model developed for mark-recapture data\r\nwas studied using simulation experiments. One was able to find such a model\r\nconfiguration, where the parameters concerning mortality estimates may be es-\r\ntimated without significant systematic errors in the estimated posterior distri-\r\nbutions. Simultaneously, the tag reporting probabilities were estimated for each\r\nof the three fishing fleets although systematic errors remained for these param-\r\neters.\r\nThe final mortality estimate indicates that about half of the Archipelago Sea\r\npike perch population is removed annually. For the recent years about half of\r\nthis mortality was caused by professional fishing, and almost the same amount\r\nwas due to natural death. The mortality caused by recreational fishing is the\r\nsmallest mortality component. The estimate concerns population similar to\r\nreleased cohorts. The produced estimate is sensitive to many factors, whereas\r\neffects of environmental change, or changes in seal or cormorant abundances,\r\nwere beyond the scope of this work.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Juho Kopra (jujokopr) on 2014-01-16 19:11:35.504934. 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 2014-01-16T19:11:36Z\r\nNo. of bitstreams: 2\r\nURN:NBN:fi:jyu-201401161075.pdf: 1145339 bytes, checksum: ff06f4cdb7973769789c2a64a81f96b9 (MD5)\r\nlicense.html: 4900 bytes, checksum: 3c20325e77cc27ccf9d6f5256ee60243 (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2014-01-16T19:11:36Z (GMT). No. of bitstreams: 2\r\nURN:NBN:fi:jyu-201401161075.pdf: 1145339 bytes, checksum: ff06f4cdb7973769789c2a64a81f96b9 (MD5)\r\nlicense.html: 4900 bytes, checksum: 3c20325e77cc27ccf9d6f5256ee60243 (MD5)\r\n Previous issue date: 2013", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "1 verkkoaineisto (52 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": "Bayes", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "kuha", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "kuolleisuus", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "merkint\u00e4-takaisinpyynti", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Utilising mark-recapture data for Bayesian modelling of fish mortality", "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-201401161075", "language": null, "element": "identifier", "qualifier": "urn", "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": "Matematiikan ja tilastotieteen laitos", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Department of Mathematics and Statistics", "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": "Tilastotiede", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Statistics", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.date.updated", "value": "2014-01-16T19:11:37Z", "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": "4043", "language": null, "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "bayesilainen menetelm\u00e4", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "kuha", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "kuolleisuus", "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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