{"authors":[{"id":null,"fullName":"Kraft, Kaisa","name":"Kaisa","surname":"Kraft","rank":1,"pid":{"id":{"scheme":"orcid_pending","value":"0000-0001-6290-3887"},"provenance":null}},{"id":null,"fullName":"Haraguchi, Lumi","name":"Lumi","surname":"Haraguchi","rank":2,"pid":{"id":{"scheme":"orcid_pending","value":"0000-0001-6307-1808"},"provenance":null}},{"id":null,"fullName":"Hällfors, Heidi","name":"Heidi","surname":"Hällfors","rank":3,"pid":null},{"id":null,"fullName":"Seppälä, Jukka","name":"Jukka","surname":"Seppälä","rank":4,"pid":{"id":{"scheme":"orcid_pending","value":"0000-0002-1210-9893"},"provenance":null}}],"openAccessColor":null,"publiclyFunded":null,"eoscIfGuidelines":null,"type":"dataset","language":{"code":"und","label":"Undetermined"},"countries":null,"subjects":[{"subject":{"scheme":"FOS","value":"0106 biological sciences"},"provenance":null},{"subject":{"scheme":"keyword","value":"Imaging FlowCytobot"},"provenance":null},{"subject":{"scheme":"keyword","value":"IFCB"},"provenance":null},{"subject":{"scheme":"keyword","value":"machine learning"},"provenance":null},{"subject":{"scheme":"keyword","value":"training data"},"provenance":null},{"subject":{"scheme":"keyword","value":"phytoplankton"},"provenance":null},{"subject":{"scheme":"keyword","value":"imaging"},"provenance":null},{"subject":{"scheme":"FOS","value":"01 natural sciences"},"provenance":null}],"mainTitle":"SYKE-plankton_IFCB_2025","subTitle":null,"descriptions":["The dataset available here is an updated version of SYKE-plankton_IFCB_2022 (DOI:https://doi.org/XXXX/b2share.959d9bdf9b4247299498ad8d351ce0fb). It contains approximately 71 000 images belonging to 152 different classes, consisting mainly of phytoplankton. The images can be used to e.g. train a classifier to identify phytoplankton images. If used in scientific applications, please aknowledge the authors/ creators of the dataset accordingly.The images were collected with an Imaging FlowCytobot (IFCB, McLane Research Laboratories, Inc., U.S., Olson and Sosik, 2007) from different locations in the Baltic Sea between 20016 and 2024. The data were collected from a continuous deployment at the Utö Atmospheric and Marine Research Station (59°46.84’ N, 21°22.13’ E; Laakso et al., 2018; Kraft et al., 2021) operated by Finnish Environment Institute and Finnish Meteorological Institute (n=470). Also, water samples were collected using the Alg@line ferrybox systems of M/S Finnmaid and Silja Serenade (Ruokanen et al., 2003; Kaitala et al., 2014) and manually ran in the laboratory (n=43), and from a continuous deployment from M/S Finnmaid (n=56). The images were manually annotated by expert taxonomists. The class list and labeled image set is a continuous work in progress, thus there may be a need for revision in future. More detailed explanation and example images of 50 different classes can be found from the publication Kraft et al. 2022.The work utilized SYKE and FMI marine research infrastructure as a part of the national FINMARI RI consortium. The work was partly funded by Tiina and Antti Herlin Foundation (personal grant for KK), Academy of Finland project FASTVISION-plus (grant no. 339355), JERICO-S3 project, funded by the European Commission’s H2020 Framework Programme under grant agreement No. 871153, and OBAMA-NEXT funded by the European Union under the Horizon Europe program under grant agreement No. 101081642.  Class list   Akinete  Amphidinium-Katodinium  Amphidinium-Katodinium2  Amphidinium_crassum  Amphidinium_sphenoides  Amylax_triacantha  Aphanizomenon_flosaquae  Aphanothece_paralleliformis  Apocalathium_malmogiense  Beads  Biecheleria_baltica  Binuclearia_lauterbornii  Bubble  Bubble2  Bubble3  Cerataulina_pelagica  Chaetoceros_spp_chain  Chaetoceros_spp_chain2  Chaetoceros_spp_single  Chlorococcales  Chlorococcales2  Chlorococcales3  Chlorococcales4  Chroococcales  Chroococcus_spp  Ciliata_Askenasia_spp  Ciliata_Balanionidae  Ciliata_Choreotrichida_spp  Ciliata_Euplotida_spp  Ciliata_Halteria_spp  Ciliata_Strombidium_cf_conicum  Ciliata_Strombidium_spp  Ciliata_Tintinnina  Ciliata_Urotricha_spp  Ciliata_cf_Holophrya_spp  Ciliata_cf_larvae  Ciliata_sp  Ciliata_sp2  Ciliata_spp  Ciliata_spp2  Copepod_nauplii  Coscinodiscus_granii  Cryptomonadales  Cyclotella_choctawhatcheeana  Cylindrotheca_closterium  Cymbomonas_tetramitiformis  Cyst_like  Dactyliosolen_fragilissimus  Detritus1  Detritus2  Detritus3  Detritus4  Diatoma_tenuis  Dinobryon_spp  Dinophyceae_obscure  Dinophyceae_pairs  Dinophyceae_sp  Dinophyceae_spp  Dinophysis_spp  Dolichospermum-Anabaenopsis  Dolichospermum-Anabaenopsis_coiled  Ebria_tripartita  Empty_cell_part  Entomoneis  Euglenophyceae  Euglenophyceae2  Eutreptiella_sp  Fecal_pellet  Gonyaulax_verior  Guinardia_delicatula  Gymnodiniales  Gymnodinium-Gyrodinium  Gymnodinium_corollarium  Gymnodinium_sp  Gymnodinium_sp10  Gymnodinium_sp11  Gymnodinium_sp12  Gymnodinium_sp13  Gymnodinium_sp14  Gymnodinium_sp2  Gymnodinium_sp3  Gymnodinium_sp4  Gymnodinium_sp5  Gymnodinium_sp6  Gymnodinium_sp7  Gymnodinium_sp8  Gymnodinium_sp9  Gyrodinium_spirale  Helicostomella_subulata  Heterocapsa_arctica_subsp_frigida  Heterocapsa_rotundata  Heterocapsa_triquetra  Heterocyte  Katablepharis_remigera  Katodinium_glaucum  Licmophora_spp  Melosira_arctica  Melosira_arctica2  Merismopedia_sp  Mesodinium_major  Mesodinium_rubrum  Mesodinium_rubrum2  Mesodinium_spp  Mesodinium_spp2  Mesodinium_spp3  Monoraphidium_contortum  Navicula_spp_chain  Nitzschia_frigida  Nitzschia_paleacea  Nodularia_spumigena  Nodularia_spumigena_coiled  Octactis_speculum  Oocystis_sp  Oscillatoriales  Pauliella_taeniata  Pauliella_taeniata2  Pauliella_taeniata3  Pauliella_taeniata4  Pauliella_taeniata5  Pauliella_taeniata6  Pennales_sp  Pennales_sp2  Peridiniella_catenata_chain  Peridiniella_catenata_single  Peridiniella_catenata_single2  Plagioselmis_prolonga  Pollen  Prorocentrum_cordatum  Protoperidinium_bipes  Pseudopedinella-Apedinella  Pyramimonas_spp  Rotifera  Scenedesmus_spp  Skeletonema_marinoi  Snowella-Woronichinia  Snowella-Woronichinia  Teleaulax_amphioxeia  Teleaulax_spp  Thalassionema_nitzschioides  Thalassiosira_levanderi  Thalassiosira_spp_chain  Thalassiosira_spp_single  Tintinnid_lorica  Unknown  Unknown2  Unknown3  Unknown4  Unknown5  Unknown6  Uroglenopsis_sp  Vorticella  cf_Micracanthodinium_claytonii"],"publicationDate":"2025-11-13","publisher":"Zenodo","embargoEndDate":null,"sources":null,"formats":null,"contributors":null,"coverages":null,"bestAccessRight":{"code":"c_abf2","label":"OPEN","scheme":"http://vocabularies.coar-repositories.org/documentation/access_rights/"},"container":null,"documentationUrls":null,"codeRepositoryUrl":null,"programmingLanguage":null,"contactPeople":null,"contactGroups":null,"tools":null,"size":null,"version":null,"geoLocations":null,"id":"doi_dedup___::557f6c819174c9a4d8dd1a2a65ba5d2a","originalIds":["50|datacite____::557f6c819174c9a4d8dd1a2a65ba5d2a","10.5281/zenodo.17601020","oai:zenodo.org:17601020","50|od______2659::557f6c819174c9a4d8dd1a2a65ba5d2a","50|datacite____::8e06b801fe8522d2efc0a4a46823c2bd","10.5281/zenodo.17601019"],"pids":[{"scheme":"doi","value":"10.5281/zenodo.17601020"},{"scheme":"doi","value":"10.5281/zenodo.17601019"}],"dateOfCollection":null,"lastUpdateTimeStamp":null,"indicators":{"citationImpact":{"citationCount":0.0,"influence":2.1746283E-9,"popularity":2.2497804E-9,"impulse":0.0,"citationClass":"C5","influenceClass":"C5","impulseClass":"C5","popularityClass":"C5"}},"projects":[{"id":"corda__h2020::be16977c9fcfdffef625b2d2e308975a","code":"871153","acronym":"JERICO-S3","title":"Joint European Research Infrastructure of Coastal Observatories: Science, Service, Sustainability - 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