39bf1897-5d18-45c9-9dae-21e79d2b2cfe Alberto Basset University of Salento Full professor alberto.basset@unisalento.it 0000-0002-3603-9316 Alberto Basset University of Salento Full professor alberto.basset@unisalento.it 0000-0002-3603-9316 Ilaria Rosati National Research Council (CNR), Institute of Research on Terrestrial Ecosystems (IRET) Technologist ilaria.rosati@cnr.it 0000-0003-3422-7230 Custodian Steward Cristina Di Muri National Research Council (CNR), Institute of Research on Terrestrial Ecosystems (IRET) Technologist cristina.dimuri@cnr.it 0000-0003-4072-0662 Information Manager 2026-01-29 English This dataset includes phytoplankton data and abiotic data of the water column collected during a seasonal sampling carried out in 2000 along the Apulian coast in the Ionian and Adriatic Seas. The sampling events occurred along seven transects and at different sampling depths to investigate the distribution patterns of dominant phytoplankton taxa along the main niche axes. The phytoplankton data table includes 320 taxa with average individual body size per taxon. The abiotic data table includes key water column parameters (e.g., temperature, salinity, and nutrients) collected for each sampling event over time and at different depths. Marine habitats EUNIS habitats phytoplankton water column seasonal dynamics Environmental Thesaurus abiotic parameters eLTER Controlled Lists Morphological trait Traits Thesaurus Phytoplankton data published within this dataset were derived from individual-based phytoplankton data available at: https://doi.org/10.48372/f92003b2-5f5d-4719-ab5a-e1c88cc0f3fc cc-by https://creativecommons.org/licenses/by/4.0/ The sampling activities were carried out in the waters of the Ionian and Adriatic Seas along the Apulian coast, during four oceanographic cruises of the INTERREG II “Italy-Greece” project. 17.64 18.65 40.89 39.60 2000-03-11 2000-12-13 Phylum Cercozoa 562852 Phylum Chlorophyta 801 Phylum Ciliophora 11 Phylum Cryptophyta 17638 Phylum Cyanobacteria 146537 Phylum Haptophyta 369190 Phylum Heterokontophyta 370437 Phylum Myzozoa 450030 Phylum Ochrophyta 345465 Phylum Euglenozoa 536202 http://www.w3.org/ns/dcat#keyword http://vocabs.lter-europe.net/EnvThes/20674 http://www.w3.org/ns/dcat#keyword https://kos.lifewatch.eu/thesauri/traits/Morphological_Trait http://www.w3.org/ns/dcat#keyword http://vocabs.lter-europe.net/elter_cl/10590 http://www.w3.org/ns/dcat#keyword http://vocabs.lter-europe.net/EnvThes/20924 http://www.w3.org/ns/dcat#keyword http://vocabs.lter-europe.net/EnvThes/21571 http://www.w3.org/ns/dcat#keyword http://eunis.eea.europa.eu/eunishabitats/A Alberto Basset University of Salento Full professor alberto.basset@unisalento.it 0000-0002-3603-9316 At each sampling station, vertical profiles of water temperature, salinity, dissolved oxygen and fluorescence were obtained with a SBE 9/11 Plus CTD. Water samples for phytoplankton and nutrient analysis were collected using a Carousel sampler equipped with 12 Niskin bottles (12 L). Water samples for phytoplankton analysis were collected at three depths, selected according to the fluorescence signal in order to collect samples from the maximum chlorophyll layer. Water samples for nutrient analysis were collected on a much narrower sampling grid, in order to obtain a clear definition of spatial patterns, if any. Sub-samples for nutrient analysis (silicate, phosphate, nitrate, nitrite, ammonia) were collected directly from the Niskin bottles, filtered through 0.7 mm GFF filters and stored at 20° C in 100 ml LDPE (Low Density Polyethylene) bottles until analysis. In the laboratory, nutrient concentrations were determined using an autoanalyzer Technicon II, according to Hansen and Grasshoff (1983). Dissolved inorganic nitrogen (DIN) was calculated as the sum of nitrate, nitrite and ammonia, and phosphate was determined as dissolved inorganic phosphorus (DIP). Sub-samples for chlorophyll a (Chla) determination were treated for phytoplankton biomass fractionation according to a protocol of serial filtration. For each sampling an aliquot was filtered directly onto 25 mm GF/F 0.45 mm Whatman filters (total Chl a concentration); another aliquot was passed through 20 mm plankton nets and then onto 0.45 mm GF/F (micro-planktonic fraction); a third aliquot was passed through 2 mm (Nuclepore) and poured onto 0.45 mm GF/F for the pico-planktonic fraction. The nano-planktonic fraction (2e20 mm) was calculated by subtracting the !2 mm fraction from the !20 mm fraction. Filters were stored in a freezer at 20° C until determination. Spectro-fluorimetric analyses of size-fractionated Chl a and phaeopigments were carried out according to Holm-Hansen et al., 1965. Filters were put in neutralised 90% v/v acetone and allowed to extract for 2 h. The extract was read, before and after acidification, with a Shimazu RF1501 spectro-fluorimeter. The instrument was checked on a daily basis against a solution of Chl a from Anacystis nidulans supplied by Sigma. Water samples were collected at different depths along seven transects running perpendicular to the coastline. Each transect had three sampling stations located at 3, 9, and 15 nautical miles from the shore. Apulian region, Ionian Sea and Adriatic Sea. Alberto Basset University of Salento Full professor alberto.basset@unisalento.it 0000-0002-3603-9316 Principal Investigator Most critical issues currently faced by our society involve key environmental challenges. Pollution, land use and climate change, and their impacts on biodiversity and ecosystem integrity need to be urgently addressed, providing quantitative knowledge to be transformed into actionable strategies. Given the complexity of such challenges, a multi-disciplinary approach to the Earth System is deemed crucial. This approach involves combining field and laboratory measurements, analyses, experiments, data analysis, and modeling tools across the various interlinked environmental domains. Italy is actively involved in all major pan-European Environmental Research Infrastructures (RIs) and also hosts other nationally relevant RIs, all essential for providing the systematic and coherent information needed for high-level research. Given the large number and heterogeneity of these infrastructures, coordinated actions are essential to integrate and interlink them, as well as to harmonize their activities. To achieve an integrated approach to the Earth system and its changes, the 22 participating RIs agreed to jointly prepare and build the thematic network called ITINERIS. The primary objective of ITINERIS is to establish the italian integrated system of the Research Infrastructures in the environmental scientific domain, facilitating observation and study of processes in the atmosphere, marine domain, terrestrial biosphere, and geosphere. Such a broad-scale and long-term vision of environmental research, sustained by the main Italian scientists currently involved in European RIs, is truly innovative and it will support Italy in taking a leading role in European environmental research activities, designing the framework for the next decades. ITINERIS is a project funded by EU - Next Generation EU PNRR- Mission 4 “Education and Research” - Component 2: “From research to business” - Investment 3.1: “Fund for the realization of an integrated system of research and innovation infrastructures”. abiotic_data_apulian_coast_20260129.csv abiotic_data_apulian_coast_20260129.csv 42845 MD5:60a4c247ee0f752904b0f8b82db97ab2 1 column ; catalogNumber Catalog Number An identifier (preferably unique) for the record within the data set or collection. Any Text http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/catalogNumber cruise Cruise Identifier assigned to a specific sampling event by a cruise. Any Text http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext https://kos.lifewatch.eu/thesauri/vrephytoplankton/c_eb1f32c6 waterBody Water Body The name of the water body in which the dcterms:Location occurs. Any Text http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/waterBody parentEventID Parent Event ID An identifier for the broader dwc:Event that groups this and potentially other dwc:Events. Any Text http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/parentEventID depth depth Depth is the vertical distance below the surface. meter real http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#containsMeasurementsOfType http://vocab.nerc.ac.uk/collection/P07/current/CFSN0721/ eventDate Event Date The date-time or interval during which a dwc:Event occurred. For occurrences, this is the date-time when the dwc:Event was recorded. Not suitable for a time in a geological context. YYYY-MM-DD http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/eventDate month Month The integer month in which the dwc:Event occurred. M http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/month day Day The integer day of the month on which the dwc:Event occurred. D http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/day year Year The four-digit year in which the dwc:Event occurred, according to the Common Era Calendar. YYYY http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/year decimalLatitude Decimal Latitude The geographic latitude (in decimal degrees, using the spatial reference system given in dwc:geodeticDatum) of the geographic center of a dcterms:Location. Positive values are north of the Equator, negative values are south of it. Legal values lie between -90 and 90, inclusive. degree real http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/decimalLatitude decimalLongitude Decimal Longitude The geographic longitude (in decimal degrees, using the spatial reference system given in dwc:geodeticDatum) of the geographic center of a dcterms:Location. Positive values are east of the Greenwich Meridian, negative values are west of it. Legal values lie between -180 and 180, inclusive. degree real http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/decimalLongitude waterTemperature Water Temperature Water temperature measured in situ. celsius real http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#containsMeasurementsOfType https://kos.lifewatch.eu/thesauri/vrephytoplankton/c_a343112a dissolvedOxygen DISSOLVED OXYGEN Volume of oxygen dissolved per unit volume of the water column. milligramPerLiter real http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#containsMeasurementsOfType http://vocab.nerc.ac.uk/collection/P09/current/DOX1/ salinity Salinity The mass of sodium chloride dissolved per unit mass of the water column (definition prior to introduction of PSS-78 Practical Salinity Scale). dimensionless real http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#containsMeasurementsOfType http://vocab.nerc.ac.uk/collection/S06/current/S0600085/ conductivity Conductivity The degree to which an electrical current can pass through water due toions dissolved in the water. microsiemens per centimeter real http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#containsMeasurementsOfType http://vocab.nerc.ac.uk/collection/P14/current/GVAR0165/ waterBodyAmmonium Water body ammonium Concentration of ammonium per unit volume of a river, estuary, sea or ocean by any method in filtered or unfiltered water. micromolePerLiter real http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#containsMeasurementsOfType http://vocab.nerc.ac.uk/collection/P35/current/EPC00009/ nitrate Nitrate Concentration of nitrate nitrogen per unit volume of the water column. micromolePerLiter real http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#containsMeasurementsOfType https://kos.lifewatch.eu/thesauri/vrephytoplankton/c_7249c816 nitrite Nitrite Concentration of nitrite nitrogen per unit volume of the water column. micromolePerLiter real http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#containsMeasurementsOfType https://kos.lifewatch.eu/thesauri/vrephytoplankton/c_813004bb dissolvedInorganicNitrogen DISSOLVED INORGANIC NITROGEN Quantity (i.e. number of moles) of inorganic nitrogen (i.e. nitrogen not in carbon compounds) dissolved per unit volume of the water column. micromolePerLiter real http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#containsMeasurementsOfType http://vocab.nerc.ac.uk/collection/P09/current/TINW/ silicate Silicates Concentrations of dissolved inorganic silicon usually as hydrosilicic acid (often called silicate) and biogenic silica. micromolePerLiter real http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#containsMeasurementsOfType http://vocab.nerc.ac.uk/collection/P36/current/SLCATE/ dissolvedInorganicPhosphorous Dissolved Inorganic Phosphorous Inorganic phosphorus available for biological uptake (usually orthophosphate). micromolePerLiter real http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#containsMeasurementsOfType https://kos.lifewatch.eu/thesauri/vrephytoplankton/c_733587de totalChlorophyll Total Chlorophyll Includes the total chlorophyll a content, derived from all phytoplankton size-fraction components. microgramPerLiter real http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#containsMeasurementsOfType https://kos.lifewatch.eu/thesauri/vrephytoplankton/c_b36a5b91 chlorophyllPicoplankton Chlorophyll Picoplankton Size-fractionated phytoplankton biomass for picoplankton. microgramPerLiter real http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#containsMeasurementsOfType https://kos.lifewatch.eu/thesauri/vrephytoplankton/c_e3c66df8 chlorophyllNanoplankton Chlorophyll Nanoplankton Size-fractionated phytoplankton biomass for nanoplankton. microgramsPerLiter real http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#containsMeasurementsOfType https://kos.lifewatch.eu/thesauri/vrephytoplankton/c_b698bf92 chlorophyllMicroplankton Chlorophyll Microplankton Size-fractionated phytoplankton biomass for microplankton. microgramsPerLiter real http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#containsMeasurementsOfType https://kos.lifewatch.eu/thesauri/vrephytoplankton/c_20202498 netPrimaryProduction Net Primary Production The rate at which photosynthetic organisms produce net useful chemical energy after accounting for respiration. milligram per cubic metre per hour real http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#containsMeasurementsOfType https://kos.lifewatch.eu/thesauri/vrephytoplankton/c_3cf9d7f9 primaryProductionPicoplankton Primary Production Picoplankton Primary production for picoplankton. milligram per cubic metre per hour real http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#containsMeasurementsOfType https://kos.lifewatch.eu/thesauri/vrephytoplankton/c_2239087d primaryProductionNanoplankton Primary Production Nanoplankton Primary production for nanoplankton. milligram per cubic metre per hour real http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#containsMeasurementsOfType https://kos.lifewatch.eu/thesauri/vrephytoplankton/c_9490d478 primaryProductionMicroplankton Primary Production Microplankton Primary production for microplankton. milligram per cubic metre per hour real http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#containsMeasurementsOfType https://kos.lifewatch.eu/thesauri/vrephytoplankton/c_54ca9a87 DIN/DIP dissolvedInorganicNitrogen/dissolvedInorganicPhosphorous The ratio between Dissolved Inorganic Nitrogen and Dissolved Inorganic Phosphorous dimensionless real 205 phytoplankton_data_apulian_coast_20260129.csv phytoplankton_data_apulian_coast_20260129.csv 1246549 MD5:e3300159edbe9f2f06e89988bd4c65ca UTF-8 1 column ; catalogNumber Catalog Number An identifier (preferably unique) for the record within the data set or collection. Any Text http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/catalogNumber cruise Cruise Identifier assigned to a specific sampling event by a cruise. Any Text http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext https://kos.lifewatch.eu/thesauri/vrephytoplankton/c_eb1f32c6 parentEventID Parent Event ID An identifier for the broader dwc:Event that groups this and potentially other dwc:Events. Any Text http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/parentEventID decimalLatitude Decimal Latitude The geographic latitude (in decimal degrees, using the spatial reference system given in dwc:geodeticDatum) of the geographic center of a dcterms:Location. Positive values are north of the Equator, negative values are south of it. Legal values lie between -90 and 90, inclusive. degree real http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/decimalLatitude decimalLongitude Decimal Longitude The geographic longitude (in decimal degrees, using the spatial reference system given in dwc:geodeticDatum) of the geographic center of a dcterms:Location. Positive values are east of the Greenwich Meridian, negative values are west of it. Legal values lie between -180 and 180, inclusive. degree real http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/decimalLongitude distanceFromCoast Distance from coast The horizontal distance measured from the shoreline toward the open sea. Nautical miles real http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext https://kos.lifewatch.eu/thesauri/vrebiomass/c_daa88c41 depth depth Depth is the vertical distance below the surface. meter real http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#containsMeasurementsOfType http://vocab.nerc.ac.uk/collection/P07/current/CFSN0721/ day Day The integer day of the month on which the dwc:Event occurred. D http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/day month Month The integer month in which the dwc:Event occurred. M http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/month year Year The four-digit year in which the dwc:Event occurred, according to the Common Era Calendar. YYYY http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/year waterBody Water Body The name of the water body in which the dcterms:Location occurs. Any Text http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/waterBody verbatimIdentification Verbatim Identification A string representing the taxonomic identification as it appeared in the original record. Any Text http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/verbatimIdentification kingdom Kingdom The full scientific name of the kingdom in which the dwc:Taxon is classified. Any Text http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/kingdom phylum Phylum The full scientific name of the phylum or division in which the dwc:Taxon is classified. Any Text http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/phylum class Class The full scientific name of the class in which the dwc:Taxon is classified. Any Text http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/class order Order The full scientific name of the order in which the dwc:Taxon is classified. Any Text http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/order family Family The full scientific name of the family in which the dwc:Taxon is classified. Any Text http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/family genus Genus The full scientific name of the genus in which the dwc:Taxon is classified. Any Text http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/genus specificEpithet Specific Epithet The name of the first or species epithet of the dwc:scientificName. Any Text http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/specificEpithet acceptedNAmeUsageID Accepted Name Usage ID An identifier for the name usage (documented meaning of the name according to a source) of the currently valid (zoological) or accepted (botanical) taxon. Any Text http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/acceptedNameUsageID acceptedNameUsage Accepted Name Usage The full name, with authorship and date information if known, of the currently valid (zoological) or accepted (botanical) dwc:Taxon. Any Text http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#hasContext http://rs.tdwg.org/dwc/terms/acceptedNameUsage density Density The number of organisms, designated by taxonomic names (e.g. species, genus, family), per unit area or per unit volume. cell per liter real http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#containsMeasurementsOfType https://kos.lifewatch.eu/thesauri/traits/c_ddc0028f meanBiovolume Mean biovolume The mean value in a range of biovolume values. It is calculated as the sum of the biovolume values of all organisms (cells, colonies) divided by the number of organisms measured. cubic micrometre real http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#containsMeasurementsOfType https://kos.lifewatch.eu/thesauri/traits/c_14f34e2e meanBiomass Mean biomass The mean value in a range of biomass values. nanogram real http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#containsMeasurementsOfType https://kos.lifewatch.eu/thesauri/traits/c_d377aa23 4737