Long-term dataset of freshwater phytoplankton in Umbrian lakes
Default
IdentificationAbout this resource
- Alternate Identifier
-
05a3f14e-1733-48ee-aaec-56b3cd9cb12e
- Publication Date
- 2026-01-27
- Title
-
Long-term dataset of freshwater phytoplankton in Umbrian lakes
- Abstract
-
The dataset includes two data tables for biotic and abiotic data of Umbrian lakes. The biotic data table contains phytoplankton species density values (cells/L) and biomass expressed as biovolume (µm³/L). These data were collected between 2009 and 2022 with a bimonthly sampling frequency. The abiotic data table includes bimonthly measurements of physico-chemical environmental parameters, such as alkalinity, total nitrogen, total phosphorus, dissolved organic carbon, conductivity, dissolved oxygen, pH, depth, silica, water and air temperature, and transparency. Data were collected at 9 sampling sites across 8 water bodies in the Umbria region as part of the environmental monitoring activities carried out by ARPA Umbria. The monitored water bodies include 8 lakes: 2 natural lakes (Lake Trasimeno and Lake Colfiorito) and 6 heavily modified water bodies (HMWBs).
- purpose
-
This dataset is part of Activity 6.17 of Work Package 6, within the Italian Integrated Environmental Research Infrastructures System (ITINERIS).
- Dataset Language
-
English
- Dataset Creator
- Dataset Creator
- Dataset Creator
- Dataset Creator
- Dataset Creator
- Metadata Provider
- Metadata Provider
- Associated Party
- Associated Party
- Dataset Contact
- Keywords (Environmental Thesaurus)
-
-
biodiversity
-
phytoplankton
-
density
-
- Keywords (Traits Thesaurus)
-
-
Morphological trait
-
Cell size
-
Mean biovolume
-
Geographic Coverage
- Geographic Description
-
Data were collected from 9 sampling sites across 8 water bodies in the Umbria region.
Bounding Box
- West Bounding Coordinate
-
12.11
- East Bounding Coordinate
-
12.87
- North Bounding Coordinate
-
43.1547
- South Bounding Coordinate
-
42.46
Temporal Coverage
Range of Dates
- Begin Date
-
2009-01-29
- End Date
-
2022-12-12
Taxonomic Coverage
Taxonomic Classification
- Taxonomic Rank Name
-
Phylum
- Taxonomic Rank Value
-
Charophyta
- Taxon ID
-
368664
Taxonomic Classification
- Taxonomic Rank Name
-
Phylum
- Taxonomic Rank Value
-
Chlorophyta
- Taxon ID
-
801
Taxonomic Classification
- Taxonomic Rank Name
-
Phylum
- Taxonomic Rank Value
-
Cryptista
- Taxon ID
-
368661
Taxonomic Classification
- Taxonomic Rank Name
-
Phylum
- Taxonomic Rank Value
-
Cyanobacteria
- Taxon ID
-
146537
Taxonomic Classification
- Taxonomic Rank Name
-
Phylum
- Taxonomic Rank Value
-
Dinoflagellata
- Taxon ID
-
146203
Taxonomic Classification
- Taxonomic Rank Name
-
Phylum
- Taxonomic Rank Value
-
Euglenophyta
- Taxon ID
-
19538
Taxonomic Classification
- Taxonomic Rank Name
-
Phylum
- Taxonomic Rank Value
-
Haptophyta
- Taxon ID
-
369190
Taxonomic Classification
- Taxonomic Rank Name
-
Phylum
- Taxonomic Rank Value
-
Heterokontophyta
- Taxon ID
-
370437
resourceLicensesLicense Information
Resource License
- License Name
-
cc-by
Project
• Project
- Title
-
ARPA Umbria Regional Surface Water Monitoring Network pursuant to Directive 2000/60/EC
Personnel
Individual Name
- Given Name
-
Fedra
- Surname
-
Charavgis
- Organization Name
-
ARPA Umbria
- Position Name
-
Technician
- Role
-
Content Provider
Personnel
Individual Name
- Given Name
-
Alessandra
- Surname
-
Cingolani
- Organization Name
-
ARPA Umbria
- Position Name
-
Engineer
- Role
-
Content Provider
Personnel
Individual Name
- Given Name
-
Valentina
- Surname
-
Della Bella
- Organization Name
-
ARPA Umbria
- Position Name
-
Researcher
- Role
-
Content Provider
- Abstract
-
All major regional waterways and lakes are constantly monitored to assess their ecological and chemical status and to identify any critical issues that could jeopardise the achievement of the environmental objective set by the Water Framework Directive (good status). At the end of 2023, the first three years of the six-year cycle 2021-2026 came to an end and all the data collected was analysed and processed to determine the environmental quality of Umbria's surface waters. The results of the classifications made it possible to update the knowledge base on the ecological and chemical status of the regional hydrographic network and on the impacts generated by specific and widespread anthropogenic pressures, in support of sector planning.
Methods
• Method
Method Step
- Description
-
Surface water monitoring was carried out as part of the institutional environmental monitoring activities conducted by ARPA Umbria. Sampling and analytical procedures followed the standardized methods adopted for the monitoring of surface waters, in accordance with the principles and requirements of the Water Framework Directive (2000/60/EC) and related national and regional implementing regulations. Phytoplankton samples were collected at bimonthly intervals and analyzed to determine species composition, density (cells L⁻¹), and biomass expressed as biovolume (µm³ L⁻¹), following established protocols for ecological status assessment. Physico-chemical parameters, including water temperature, dissolved oxygen, pH, conductivity, transparency, nutrients (total nitrogen and total phosphorus), alkalinity, silica, and dissolved organic carbon, were measured concurrently using standard field and laboratory methods routinely applied in surface water monitoring programs. All data were produced within quality assurance and quality control procedures required for official monitoring activities.
qualityControl
- Description
-
A taxonomic check via the Worms Match taxa validation tool and AlgaeBase was employed to avoid some misspelled names and unaccepted synonyms.
Data Tables
• Data Table
- Name
-
abiotic_data_umbrian_lakes_20260127.csv
Physical
- Object Name
-
abiotic_data_umbrian_lakes_20260127.csv
- Size
-
182918
- Authentication
-
MD5:5f90c9c3f8e9039953fe6fa5534173e0
- Character Encoding
-
UTF-8
Data Format
- textFormat
-
1
column
;
Attribute List
Attribute
- Name
-
catalogNumber
- Label
-
Catalog Number
- Definition
-
An identifier (preferably unique) for the record within the data set or collection.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
country
- Label
-
Country
- Definition
-
The name of the country or major administrative unit in which the dcterms:Location occurs.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
countryCode
- Label
-
Country Code
- Definition
-
The standard code for the country in which the dcterms:Location occurs.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
- source
-
ISO 3166-1-alpha-2
Attribute
- Name
-
municipality
- Label
-
Third Order Division
- Definition
-
The full, unabbreviated name of the next smaller administrative region than county (city, municipality, etc.) in which the dcterms:Location occurs. Do not use this term for a nearby named place that does not contain the actual dcterms:Location.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
waterBody
- Label
-
Water Body
- Definition
-
The name of the water body in which the dcterms:Location occurs.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
locality
- Label
-
Locality
- Definition
-
The specific description of the place.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
verbatimLocality
- Label
-
Verbatim Locality
- Definition
-
The original textual description of the place.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
locationID
- Label
-
Location ID
- Definition
-
An identifier for the set of dcterms:Location information. May be a global unique identifier or an identifier specific to the data set.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
verbatimElevation
- Label
-
Verbatim Elevation
- Definition
-
The original description of the elevation (altitude, usually above sea level) of the Location.
Measurement Scale
Ratio
Unit
- standardUnit
-
meter
Numeric domain
- Number type
-
real
Attribute
- Name
-
decimalLatitude
- Label
-
Decimal Latitude
- Definition
-
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.
Measurement Scale
Ratio
Unit
- standardUnit
-
degree
Numeric domain
- Number type
-
real
Attribute
- Name
-
decimalLongitude
- Label
-
Decimal Longitude
- Definition
-
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.
Measurement Scale
Ratio
Unit
- standardUnit
-
degree
Numeric domain
- Number type
-
real
Attribute
- Name
-
day
- Label
-
Day
- Definition
-
The integer day of the month on which the dwc:Event occurred.
Measurement Scale
Date time
- Format String
-
D
Attribute
- Name
-
month
- Label
-
Month
- Definition
-
The integer month in which the dwc:Event occurred.
Measurement Scale
Date time
- Format String
-
M
Attribute
- Name
-
year
- Label
-
Year
- Definition
-
The four-digit year in which the dwc:Event occurred, according to the Common Era Calendar.
Measurement Scale
Date time
- Format String
-
YYYY
Attribute
- Name
-
measurementType
- Label
-
Measurement Type
- Definition
-
The nature of the measurement, fact, characteristic, or assertion.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
alcalinity
- Label
-
ALKALINITY
- Definition
-
Quantity (i.e. number of moles) of acid-neutralising bases per unit mass of the water column.
Measurement Scale
Ratio
Unit
- standardUnit
-
milligramPerLiter
Numeric domain
- Number type
-
real
Attribute
- Name
-
ammonium
- Label
-
Water body ammonium
- Definition
-
Concentration of ammonium per unit volume of a river, estuary, sea or ocean by any method in filtered or unfiltered water.
Measurement Scale
Ratio
Unit
- standardUnit
-
milligramsPerLiter
Numeric domain
- Number type
-
real
Attribute
- Name
-
nitrate
- Label
-
Nitrate
- Definition
-
Concentration of nitrate nitrogen per unit volume of the water column.
Measurement Scale
Ratio
Unit
- standardUnit
-
milligramPerLiter
Numeric domain
- Number type
-
real
Attribute
- Name
-
nitrite
- Label
-
Nitrite
- Definition
-
Concentration of nitrite nitrogen per unit volume of the water column.
Measurement Scale
Ratio
Unit
- standardUnit
-
milligramPerLiter
Numeric domain
- Number type
-
real
Attribute
- Name
-
totalNitrogen
- Label
-
Total Nitrogen
- Definition
-
Sum of all nitrogen forms (organic, nitrate, nitrite, ammonia) in a sample.
Measurement Scale
Ratio
Unit
- standardUnit
-
milliliterPerLiter
Numeric domain
- Number type
-
real
Attribute
- Name
-
calcium
- Label
-
calcium
- Definition
-
One of six chemical elements classified as an alkaline earth metal. Its atomic number is 20.
Measurement Scale
Ratio
Unit
- standardUnit
-
milligramPerLiter
Numeric domain
- Number type
-
real
Attribute
- Name
-
dissolvedOrganicCarbon
- Label
-
DISSOLVED ORGANIC CARBON
- Definition
-
The quantity (i.e. number of moles) of organic carbon (i.e. carbon not in carbonate or bicarbonate molecules) dissolved per unit volume of the water column
Measurement Scale
Ratio
Unit
- standardUnit
-
milligramPerLiter
Numeric domain
- Number type
-
real
Attribute
- Name
-
conductivity
- Label
-
Conductivity
- Definition
-
The degree to which an electrical current can pass through water due to ions dissolved in the water.
Measurement Scale
Ratio
Unit
- Custom Unit
-
microsiemens per centimeter
Numeric domain
- Number type
-
real
Attribute
- Name
-
totalPhosphorous
- Label
-
Total Phosphorus
- Definition
-
Total phosphorus in all forms (organic, inorganic, particulate, dissolved).
Measurement Scale
Ratio
Unit
- standardUnit
-
milligramPerLiter
Numeric domain
- Number type
-
real
Attribute
- Name
-
orthophosphate
- Label
-
Dissolved Inorganic Phosphorus
- Definition
-
Inorganic phosphorus available for biological uptake (usually orthophosphate).
Measurement Scale
Ratio
Unit
- standardUnit
-
milligramsPerLiter
Numeric domain
- Number type
-
real
Attribute
- Name
-
dissolvedOxygen
- Label
-
DISSOLVED OXYGEN
- Definition
-
Volume of oxygen dissolved per unit volume of the water column.
Measurement Scale
Ratio
Unit
- standardUnit
-
milligramPerLiter
Numeric domain
- Number type
-
real
Attribute
- Name
-
ph
- Label
-
PH
- Definition
-
Minus the log of the hydrogen ion concentration (moles per litre) in the water column.
Measurement Scale
Ratio
Unit
- standardUnit
-
dimensionless
Numeric domain
- Number type
-
real
Attribute
- Name
-
depth
- Label
-
depth
- Definition
-
Depth is the vertical distance below the surface.
Measurement Scale
Ratio
Unit
- standardUnit
-
meter
Numeric domain
- Number type
-
real
Attribute
- Name
-
reactiveSilica
- Label
-
Silicates
- Definition
-
Concentrations of dissolved inorganic silicon usually as hydrosilicic acid (often called silicate) and biogenic silica.
Measurement Scale
Ratio
Unit
- standardUnit
-
milligramPerLiter
Numeric domain
- Number type
-
real
Attribute
- Name
-
totalDissolvedSolids
- Label
-
Total Dissolved Solids
- Definition
-
Total concentration of dissolved substances (such as calcium, magnesium, sodium, chlorides, sulfates, and bicarbonates) and small amounts of dissolved organic matter in water.
Measurement Scale
Ratio
Unit
- standardUnit
-
milligramPerLiter
Numeric domain
- Number type
-
real
Attribute
- Name
-
waterTemperature
- Label
-
Water Temperature
- Definition
-
Water temperature measured in situ.
Measurement Scale
Ratio
Unit
- standardUnit
-
celsius
Numeric domain
- Number type
-
real
Attribute
- Name
-
airTemperature
- Label
-
Air Temperature
- Definition
-
Variables associated with the determination of the air temperature near the Earth's surface.
Measurement Scale
Ratio
Unit
- standardUnit
-
celsius
Numeric domain
- Number type
-
real
Attribute
- Name
-
transparency
- Label
-
Transparency
- Definition
-
Depth of visible light penetration, often measured with Secchi disk.
Measurement Scale
Ratio
Unit
- standardUnit
-
meter
Numeric domain
- Number type
-
real
- numberOfRecords
-
947
• Data Table
- Name
-
biotic_data_umbrian_lakes_20260127.csv
Physical
- Object Name
-
biotic_data_umbrian_lakes_20260127.csv
- Size
-
6299698
- Authentication
-
MD5:142231f0eaa9a78ab80b41f40ec3ac2c
- Character Encoding
-
UTF-8
Data Format
- textFormat
-
1
column
;
Attribute List
Attribute
- Name
-
catalogNumber
- Label
-
Catalog Number
- Definition
-
An identifier (preferably unique) for the record within the data set or collection.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
country
- Label
-
Country
- Definition
-
The name of the country or major administrative unit in which the dcterms:Location occurs.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
countryCode
- Label
-
Country Code
- Definition
-
The standard code for the country in which the dcterms:Location occurs.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
- source
-
ISO 3166-1-alpha-2
Attribute
- Name
-
municipality
- Label
-
Third Order Division
- Definition
-
The full, unabbreviated name of the next smaller administrative region than county (city, municipality, etc.) in which the dcterms:Location occurs. Do not use this term for a nearby named place that does not contain the actual dcterms:Location.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
locality
- Label
-
Locality
- Definition
-
The specific description of the place.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
waterBody
- Label
-
Water Body
- Definition
-
The name of the water body in which the dcterms:Location occurs.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
verbatimLocality
- Label
-
Verbatim Locality
- Definition
-
The original textual description of the place.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
locationID
- Label
-
Location ID
- Definition
-
An identifier for the set of dcterms:Location information. May be a global unique identifier or an identifier specific to the data set.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
verbatimElevation
- Label
-
Verbatim Elevation
- Definition
-
The original description of the elevation (altitude, usually above sea level) of the Location.
Measurement Scale
Ratio
Unit
- standardUnit
-
meter
Numeric domain
- Number type
-
real
Attribute
- Name
-
decimalLatitude
- Label
-
Decimal Latitude
- Definition
-
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.
Measurement Scale
Ratio
Unit
- standardUnit
-
degree
Numeric domain
- Number type
-
real
Attribute
- Name
-
decimalLongitude
- Label
-
Decimal Longitude
- Definition
-
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.
Measurement Scale
Ratio
Unit
- standardUnit
-
degree
Numeric domain
- Number type
-
real
Attribute
- Name
-
day
- Label
-
Day
- Definition
-
The integer day of the month on which the dwc:Event occurred.
Measurement Scale
Date time
- Format String
-
D
Attribute
- Name
-
month
- Label
-
Month
- Definition
-
The integer month in which the dwc:Event occurred.
Measurement Scale
Date time
- Format String
-
M
Attribute
- Name
-
year
- Label
-
Year
- Definition
-
The four-digit year in which the dwc:Event occurred, according to the Common Era Calendar.
Measurement Scale
Date time
- Format String
-
YYYY
Attribute
- Name
-
eventDate
- Label
-
Event Date
- Definition
-
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.
Measurement Scale
Date time
- Format String
-
YYYY-MM-DD
Attribute
- Name
-
verbatimIdentification
- Label
-
Verbatim Identification
- Definition
-
A string representing the taxonomic identification as it appeared in the original record.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
kingdom
- Label
-
Kingdom
- Definition
-
The full scientific name of the kingdom in which the dwc:Taxon is classified.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
phylum
- Label
-
Phylum
- Definition
-
The full scientific name of the phylum or division in which the dwc:Taxon is classified.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
subphylum
- Label
-
Subphylum
- Definition
-
The full scientific name of the subphylum in which the dwc:Taxon is classified.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
class
- Label
-
Class
- Definition
-
The full scientific name of the class in which the dwc:Taxon is classified.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
subclass
- Label
-
Subclass
- Definition
-
The full scientific name of the subclass in which the dwc:Taxon is classified.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
order
- Label
-
Order
- Definition
-
The full scientific name of the order in which the dwc:Taxon is classified.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
suborder
- Label
-
Suborder
- Definition
-
The full scientific name of the suborder in which the dwc:Taxon is classified.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
family
- Label
-
Family
- Definition
-
The full scientific name of the family in which the dwc:Taxon is classified.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
subfamily
- Label
-
Subfamily
- Definition
-
The full scientific name of the subfamily in which the dwc:Taxon is classified.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
genus
- Label
-
Genus
- Definition
-
The full scientific name of the genus in which the dwc:Taxon is classified.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
specificEpithet
- Label
-
Specific Epithet
- Definition
-
The name of the first or species epithet of the dwc:scientificName.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
infraspecificEpithet
- Label
-
Infraspecific Epithet
- Definition
-
The name of the lowest or terminal infraspecific epithet of the dwc:scientificName, excluding any rank designation.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
acceptedNameUsage
- Label
-
Accepted Name Usage
- Definition
-
The full name, with authorship and date information if known, of the currently valid (zoological) or accepted (botanical) dwc:Taxon.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
scientificNameAuthorship
- Label
-
Scientific Name Authorship
- Definition
-
The authorship information for the dwc:scientificName formatted according to the conventions of the applicable dwc:nomenclaturalCode.
Measurement Scale
nominal
nonNumericDomain
textDomain
- Definition
-
Any Text
Attribute
- Name
-
density
- Label
-
Density
- Definition
-
The number of organisms, designated by taxonomic names (e.g. species, genus, family), per unit area or per unit volume.
Measurement Scale
Ratio
Unit
- Custom Unit
-
Number Of Cells Per Liter
Numeric domain
- Number type
-
real
Attribute
- Name
-
chla
- Label
-
Chlorophyll a content
- Definition
-
The amount of chlorophyll a in an organism. It is usually expressed as a percentage of the total pigments in the organism or as a concentration per unit mass of the organism or per unit volume of water.
Measurement Scale
Ratio
Unit
- standardUnit
-
milligramsPerCubicMeter
Numeric domain
- Number type
-
real
Attribute
- Name
-
totalBiovolume
- Label
-
Total biovolume
- Definition
-
Total volume of an organism (cell or colony). It is calculated according to the geometric equations, after association of geometric shape to the real shape of the organism and measurements of linear dimensions (length, width). It is used for samples that are analysed by imaging systems.
Measurement Scale
Ratio
Unit
- Custom Unit
-
Cubic Micrometer Per Liter
Numeric domain
- Number type
-
real
- numberOfRecords
-
19274
