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Az adatok két medencére vonatkoznak: a Siófoki-medencére (EOV X: 175982; EOV Y: 564770) és a Keszthelyi-medencére (EOV X: 156046; EOV Y: 514651).","dsDescriptionDate_hu":"2026-03-06"},"dsDescription":{"dsDescriptionValue":"This dataset contains measurements of total and dissolved nutrient concentrations (NH₄–N, NO₃–N, urea–N, TDN, TN, SRP, TDP, TP) collected in Lake Balaton between 1985 and 2025 (with significant gaps). The data represent monitoring results from two basins: the Siófok Basin (EOV X: 175982; EOV Y: 564770) and the Keszthely Basin (EOV X: 156046; EOV Y: 514651).","dsDescriptionDate":"2026-03-06"},"author":{"authorName":"Horváth, Hajnalka","authorAffiliation":"HUN-REN Balaton Limnological Research Institute","authorIdentifierScheme":"ORCID","authorIdentifier":"0000-0002-8249-4934"},"datasetContact":{"datasetContactName":"Horváth, Hajnalka","datasetContactAffiliation":"HUN-REN Balaton Limnological Research Institute","datasetContactEmail":"horvath.hajnalka@blki.hu"},"publication":{"publicationCitation":"B. Somogyi, H. Li, K. Tapolczai, A. W. Kovács, L. G.-Tóth, H. Horváth, K. Krassován, A. Fodor-Kardos, and L. Vörös, “Regime shift in microalgal dynamics: Impact of water level changes on planktonic and benthic algal biomass,” SCIENCE OF THE TOTAL ENVIRONMENT, vol. 929, 2024.\n\nM. Présing, T. Preston, A. Takátsy, P. Sprőber, A. Kovács, L. Vörös, G. Kenesi, and I. Kóbor, “Phytoplankton nitrogen demand and the significance of internal and external nitrogen sources in a large shallow lake (Lake Balaton, Hungary),” HYDROBIOLOGIA, vol. 599, no. 1, pp. 87–95, 2008.","publicationIDType":"doi","publicationIDNumber":"https://doi.org/10.1007/978-1-4020-8379-2_10"},"@id":"https://hdl.handle.net/21.15109/ARP/8LLWU4","@type":["ore:Aggregation","schema:Dataset"],"schema:version":"1.0","schema:name":"Long-term Nutrient Concentration Dataset (1985–2025) for the Siófok and Keszthely Basins of Lake Balaton","schema:dateModified":"2026-03-26 10:09:23.07","schema:datePublished":"2026-03-26","schema:creativeWorkStatus":"RELEASED","schema:license":"http://creativecommons.org/licenses/by-nc-sa/4.0","dvcore:fileTermsOfAccess":{"dvcore:termsOfAccess":"Please contact the researcher via email and provide a detailed description of the intended use of the data for research purposes.","dvcore:fileRequestAccess":true},"schema:includedInDataCatalog":"ARP","schema:isPartOf":{"schema:name":"Water chemistry and algology (BLRI)","@id":"https://repo.researchdata.hu/dataverse/blri_water_chemistry_algology","schema:isPartOf":{"schema:name":"Monitoring (BLRI)","@id":"https://repo.researchdata.hu/dataverse/blri_monitoring","schema:description":"The Monitoring dataverse contains data series going back several years or decades on the changes in the different abiotic factors of Lake Balaton, i.e. the relevant elements of the physical and chemical environment and the quality and quantity of nutrients, as well as on the changes in the biological communities, i.e. fish, phytoplankton, zooplankton and chironomid larvaes.","schema:isPartOf":{"schema:name":"Balaton Limnological Research Institute (BLRI)","@id":"https://repo.researchdata.hu/dataverse/blri","schema:description":"Established in 1927, the Tihany-based institute, now known as the HUN-REN Balaton Limnological Research Institute (HUN-REN BLRI), is the country's largest biological research institute with a long history, and is a key research centre for the protection of water quality and fish management in Lake Balaton. Its main task is environmental research in freshwaters. We focus on the biota of Lake Balaton and its catchment, its spatial and temporal variations, life processes, metabolic characteristics and the local and global processes, environmental factors and human impacts that affect them. The Institute also carries out basic and applied research related to the international conventions in force on the protection of aquatic habitats, biodiversity and water quality. We are actively involved in and open to further collaborations with the scientific and economic communities in the field of scientific and research development, both nationally and internationally.\n","schema:isPartOf":{"schema:name":"Hungarian Research Network","@id":"https://repo.researchdata.hu/dataverse/hun-ren","schema:description":"<h2>A HUN-REN Magyar Kutatási Hálózat intézményi tárolója</h2>\nA HUN-REN Magyar Kutatási Hálózat a magyar tudományos élet alappillérét jelentő kutatási hálózat. A hálózat tizenegy kutatóközpontjának, hét kutatóintézetének, továbbá egyetemeken és más közintézményekben működő 116 támogatott kutatócsoportjának kutatói a matematikai és természettudományok, az élettudományok, illetve a bölcsészet- és társadalomtudományok legváltozatosabb területein végeznek alap- és alkalmazott kutatásokat.","schema:isPartOf":{"schema:name":"ARP","@id":"https://repo.researchdata.hu/dataverse/root","schema:description":"This is the root dataverse collection for HUN-REN ARP."}}}}},"schema:inLanguage":"en","ore:aggregates":[{"schema:description":"english description","schema:name":"Readme_N_and_P_forms_1985_2025_E.pdf","dvcore:restricted":false,"schema:version":1,"dvcore:datasetVersionId":80988,"@id":"hdl:21.15109/ARP/8LLWU4/2DJ3GO","schema:sameAs":"https://repo.researchdata.hu/api/access/datafile/:persistentId?persistentId=hdl:21.15109/ARP/8LLWU4/2DJ3GO","@type":"ore:AggregatedResource","schema:fileFormat":"application/pdf","dvcore:filesize":218508,"dvcore:storageIdentifier":"s3-sztaki://concorda:19cc32fe083-7ff8489d2516","dvcore:rootDataFileId":-1,"dvcore:checksum":{"@type":"MD5","@value":"60f983da8577f36a85a407c4bfb5177a"}},{"schema:description":"hungarian description","schema:name":"Readme_N_and_P_forms_1985_2025_H.pdf","dvcore:restricted":false,"schema:version":1,"dvcore:datasetVersionId":80988,"@id":"hdl:21.15109/ARP/8LLWU4/P0T7DV","schema:sameAs":"https://repo.researchdata.hu/api/access/datafile/:persistentId?persistentId=hdl:21.15109/ARP/8LLWU4/P0T7DV","@type":"ore:AggregatedResource","schema:fileFormat":"application/pdf","dvcore:filesize":219654,"dvcore:storageIdentifier":"s3-sztaki://concorda:19cc33024e2-6bd53813dde4","dvcore:rootDataFileId":-1,"dvcore:checksum":{"@type":"MD5","@value":"77c5444e64742f83ebdc9cf8917a99c4"}},{"schema:description":"dataset","schema:name":"Summary1985-2025.csv","dvcore:restricted":true,"schema:version":1,"dvcore:datasetVersionId":80988,"@id":"hdl:21.15109/ARP/8LLWU4/0EHHCY","schema:sameAs":"https://repo.researchdata.hu/api/access/datafile/:persistentId?persistentId=hdl:21.15109/ARP/8LLWU4/0EHHCY","@type":"ore:AggregatedResource","schema:fileFormat":"text/comma-separated-values","dvcore:filesize":67494,"dvcore:storageIdentifier":"s3-sztaki://concorda:19cc32fcacb-6a28cbf20b50","dvcore:rootDataFileId":-1,"dvcore:checksum":{"@type":"MD5","@value":"1975ca4b5feb9b45b85720141b4362fc"}}],"schema:hasPart":["hdl:21.15109/ARP/8LLWU4/2DJ3GO","hdl:21.15109/ARP/8LLWU4/P0T7DV","hdl:21.15109/ARP/8LLWU4/0EHHCY"]},"@context":{"author":"http://purl.org/dc/terms/creator","authorAffiliation":"https://dataverse.org/schema/citation/authorAffiliation","authorIdentifier":"http://purl.org/spar/datacite/AgentIdentifier","authorIdentifierScheme":"http://purl.org/spar/datacite/AgentIdentifierScheme","authorName":"https://dataverse.org/schema/citation/authorName","datasetContact":"https://dataverse.org/schema/citation/datasetContact","datasetContactAffiliation":"https://dataverse.org/schema/citation/datasetContactAffiliation","datasetContactEmail":"https://dataverse.org/schema/citation/datasetContactEmail","datasetContactName":"https://dataverse.org/schema/citation/datasetContactName","dateOfDeposit":"http://purl.org/dc/terms/dateSubmitted","dcterms":"http://purl.org/dc/terms/","depositor":"https://dataverse.org/schema/citation/depositor","dsDescription":"https://dataverse.org/schema/citation/dsDescription","dsDescriptionDate":"https://dataverse.org/schema/citation/dsDescriptionDate","dsDescriptionDate_hu":"https://dataverse.org/schema/citation/dsDescriptionDate_hu","dsDescriptionValue":"https://dataverse.org/schema/citation/dsDescriptionValue","dsDescriptionValue_hu":"https://dataverse.org/schema/citation/dsDescriptionValue_hu","dsDescription_hu":"https://dataverse.org/schema/citation/dsDescription_hu","dvcore":"https://dataverse.org/schema/core#","ore":"http://www.openarchives.org/ore/terms/","publication":"http://purl.org/dc/terms/isReferencedBy","publicationCitation":"http://purl.org/dc/terms/bibliographicCitation","publicationIDNumber":"http://purl.org/spar/datacite/ResourceIdentifier","publicationIDType":"http://purl.org/spar/datacite/ResourceIdentifierScheme","schema":"http://schema.org/","subject":"http://purl.org/dc/terms/subject","title":"http://purl.org/dc/terms/title","title_hu":"https://dataverse.org/schema/citation/title_hu"}}