This indicator evaluates the eutrophication status of the Baltic Sea area based on dissolved inorganic phosphorus (DIP) concentration. The measured average DIP is based on in-situ PO4 measurements from oceanographic monitoring data for winter period (December-February) 2011-2016 (umol/l), surface water (0-10 m). More detailed description on methodology can be found at http://www.helcom.fi/baltic-sea-trends/indicators/Dissolved-inorganic-phosphorus-(DIP) and http://www.helcom.fi/Documents/Eutrophication%20assessment%20manual.pdf This dataset displays the result of the indicator in HELCOM Assessment Scale 4 (Division of the Baltic Sea into 17 open sea sub-basins and division of coastal areas to WFD water types or water bodies). The open sea areas have been assessed based on HELCOM Monitoring data and results for coastal areas are based on national WFD results. Attribute information: "HELCOM_ID" = Code of the HELCOM scale 4 assessment unit "Country" = country "level_2" = name of subbasin "name" = Name of the HELCOM scale 4 assessment unit "Area (km2)" = Area of the HELCOM scale 2 assessment unit "Indicator" = Name of indicator “Season” = Season of the indicator (Winter = December-February) “Period” = Assessment unit period (20112016 = 2011 – 2016) Indicator value (ES) = Indicator value calculated for the assessment unit "Standard deviation (STD)" = Standard deviation of data used for calculating ES "Number of samples " = Number of samples in assessment unit "Thershold value (ET)" = Commonly agreed thershold value "Ratio between ES and ET (ER)" = Ratio between ES and ET (in case of indicator with positive response to eutrophication) "ES_SCORE” = Confidence based on the data used for calculating ES "ET_SCORE” = Confidence of target-setting procedure "I_SCORE” = Confidence (%) = average of ES-Score and ET-Score "Indicator Weight" = Indicator Weight in integrated eutrophication assessment “Status” = Status of the indicator (“Achieve”, “Fail”, “Not assessed” or "Not applicable") “Confidence” = Confidence of result based on I-SCORE (“High”, “Moderate”, “Low” or "Not assessed") "AULEVEL" = Assessment unit level used for the indicator

Observations of Triglopsis quadricornis were collected from the Baltic Sea area for HELCOM Red List species list. The HELCOM Red List of Baltic Sea species in danger of becoming extinct (2013) is the first threat assessment for Baltic Sea species that covers all marine mammals, fish, birds, macrophytes (aquatic plants), and benthic invertebrates, and follows the Red List criteria of the International Union for Conservation of Nature (IUCN). Almost 2800 species were considered in the Red List assessment and about 1750 were evaluated according to the IUCN Red List criteria. Triglopsis quadricornis has been placed to the Red List category of Least Concern (LC) species. The map shows the sub-basins in the HELCOM area where the species is known to occur regularly and to reproduce (HELCOM 2012).

Observations of Alosa fallax were collected from the Baltic Sea area for HELCOM Red List species list. The HELCOM Red List of Baltic Sea species in danger of becoming extinct (2013) is the first threat assessment for Baltic Sea species that covers all marine mammals, fish, birds, macrophytes (aquatic plants), and benthic invertebrates, and follows the Red List criteria of the International Union for Conservation of Nature (IUCN). Almost 2800 species were considered in the Red List assessment and about 1750 were evaluated according to the IUCN Red List criteria. Alosa fallax has been placed to the Red List category of Least Concern (LC) species. The map shows the sub-basins in the HELCOM area where the species is known to occur regularly (HELCOM 2012).

Observations of Alderia modesta were collected from the Baltic Sea area for HELCOM Red List species list. The HELCOM Red List of Baltic Sea species in danger of becoming extinct (2013) is the first threat assessment for Baltic Sea species that covers all marine mammals, fish, birds, macrophytes (aquatic plants), and benthic invertebrates, and follows the Red List criteria of the International Union for Conservation of Nature (IUCN). Almost 2800 species were considered in the Red List assessment and about 1750 were evaluated according to the IUCN Red List criteria. Alderia modesta has been placed to the Red List category of Near Threatened (NT) species. Dataset for download contains spatial grid of the Baltic Sea. Distribution of the species can be found in corresponding name column. Values are coded: 1 - Present before year 2000 or in 2000, 2 - Present after year 2000, 3 - Present both before and after year 2000.

Observations of Macoma calcarea were collected from the Baltic Sea area for HELCOM Red List species list. The HELCOM Red List of Baltic Sea species in danger of becoming extinct (2013) is the first threat assessment for Baltic Sea species that covers all marine mammals, fish, birds, macrophytes (aquatic plants), and benthic invertebrates, and follows the Red List criteria of the International Union for Conservation of Nature (IUCN). Almost 2800 species were considered in the Red List assessment and about 1750 were evaluated according to the IUCN Red List criteria. Macoma calcarea has been placed to the Red List category of Vulnerable (VU) species. Dataset for download contains spatial grid of the Baltic Sea. Distribution of the species can be found in corresponding name column. Values are coded: 1 - Present before year 2000 or in 2000, 2 - Present after year 2000, 3 - Present both before and after year 2000.

This dataset contains all HBCD stations by sub-basin in the Baltic Sea as reported to the HELCOM MORE project.

This dataset contains dredging sites reported by HELCOM Contracting Parties, according to the HELCOM Recommendation 36/2 (https://helcom.fi/action-areas/industrial-municipal-releases/dredging/). Reporting of dredging sites connected to disposal events became mandatory starting from 2023 data, when the HELCOM Guidelines for Management of Dredged Material at Sea was updated. Before this, reporting of dredging sites was not mandatory, but several Contracting Parties report information about dredging activities. The dredging sites are grouped by spatial data type to point, line and polygon datasets. The dredging site includes a link to corresponding site where the material has been deposited. Attribute information (heading for downloadable shapefile): Dredging ID (Dredging_I): Dredging site id, where material originates from Deposit site (Helcom site ID) (Helcom_sit): Unique id for deposit site Deposit site link (Deposit_si): Link to deposit site, where material from this dredging site is deposited Site name (Site_name): Name of the dredging site Type of area dredged (Type_of_ar): Type of area that was dredged (e.g. harbour or sea) Dredging activity (Dredging_a): Maintenance or capital dredging Material dredged (Material_d): The type of material dredged (e.g. sand, silt) Year (Year): Year of activity Country (Country): Contracting Party of HELCOM Sub-basin (Sub_basin): HELCOM sub-basin (assessment unit level 2) where activity has taken place Quality flag (Quality_fl): Quality flag of data - Quality assured: Data is quality assured either in the annual verification or in a separate quality assurance process by EN DREDS - No quality assurance: Data is not quality assured due to the reason that process has not been carried out - No Quality assurance possible: Data quality assurance process has been made, but it was not possible to find the reference data to verify the parameters

This dataset represents the underlying data on core indicator Zooplankton mean size and total stock (MSTS). The core indicator evaluates zooplankton community structure to determine whether it reflects good environmental status. Quantitative thresholds are used to evaluate core indicators status in Achieve, Fail or Not assessed. As a rule, achieve status occur when large sized zooplankters occur abundantly in the plankton community. Due to strong environmental gradients, size distribution and total stock of the zooplankton corresponding to achieve status vary between the Baltic Sea sub-basins. This dataset displays the result of the indicator in HELCOM Assessment Scale 2 (Division of the Baltic Sea into 17 sub-basins). The dataset contains following attributes: DOME - output field Description CNTRY - Country that has reported the measurement (cf. CNTRY) CRUIS - Cruise identifier (unique for data submission) STNNO - Station identification (unique for each CRUIS within the same data submission) SMPNO - Sample identifier (unique for each CRUIS and STNNO within the same data submission) MPROG - Monitoring programme (cf. MPROG). Multiple programmes are possible separated by “~” (ascii 126) PURPM - Purpose of monitoring (cf. PURPM) . Multiple purposes possible separated by “~” (ascii 126) MYEAR - Monitoring year. Note that MYEAR may not always be identical to the year in date of sampling DATE - Date of sampling (DD/MM/YYYY) Latitude - Latitude of measurement (decimal degrees) Longitude - Longitude of measurement (decimal degrees) MNDEP - Minimum depth of sample (m) MXDEP - Maximum depth of sample (m) STATN - Station name as reported HELCOM_subbasin - HELCOM subbasin name (L2) HELCOM_L3 - HELCOM subbasin with coastal and offshore division – HELCOM_ID (L3) HELCOM_L4 - HELCOM subbasin with coastal WFD waterbodies or watertypes – HELCOM_ID (L4) OSPAR_region - OSPAR region ICES area - ICES Statistical Areas (cf. ICES statistical areas) RLABO - Reporting laboratory (cf. RLABO) ALABO - Analytical laboratory (cf. RLABO) SLABO - Sampling laboratory (cf. RLABO) RLIST - Reference code list used for species (cf RLIST) SPECI - Species/taxon code/name of examined specimen, as reported by submitter (according to reported reference list RLIST) SPECI_name - Species/taxon name of examined specimen, as reported by submitter (according to reported reference list RLIST) AphiaID - AphiaID (id) of species in World Registry of Marine Species (WoRMS) WoRMS_name - Taxon species/name of species in World Registry of Marine Species (WoRMS) AphiaID_accepted - Accepted AphiaID (id) of species in World Registry of Marine Species (WoRMS) WoRMS_accepted_name - Accepted species/taxon name of species in World Registry of Marine Species (WoRMS) SEXCO - Sex of specimen (cf. SEXCO) SFLAG - Species flag (cf. SFLAG) . Multiple purposes possible separated by “~” (ascii 126) SIZCL - Size class (value from reference in SIZRF) SIZRF - Size class reference list (cf. SIZRF) STAGE - Developmental stage of the species (cf. STAGE) CPORT - Number of portions counted from split sample NPORT -Number of portions in split sample (SMPNO) PARAM - Measured parameter (cf. PARAM) MUNIT - Measurement unit (cf. MUNIT) Value - Value measured Final_MUNIT - The unit of the final value (cf. MUNIT) Final_value - For values that are reported as a number only (eg. ‘nr’ or ‘g’) the final concentration (eg. ‘nr/l’ or ‘g/l’) is calculated as value*NPORT/(CPORT * SMVOL). If value is reported as a concentration, Final_value and Value are identical SMTYP - Sampler type (cf. SMTYP) SAREA - Sampler/swept area (cm2) METOA - Method of analysis (cf. METOA) MAGNI -Total magnification FLVOL - Calculated flow .volume of water (m3) CLMET MESHS - Mesh size of net or sieve (µm) CLMET - Calculation method for FLVOL (cf. CLMET) SMVOL - Total sampled volume (m3) METFP - Method of chemical fixation/preservation (cf. METFP) QFLAG - Qualifier flag for measured value, i.e. “<” (cf. QFLAG). Multiple flags possible separated by “~” (ascii 126) VFLAG - Validity flag, i.e. “S“ suspect value (cf. VFLAG). Multiple flags possible separated by “~” (ascii 126) FINFL - Factors potentially influencing guideline compliance and interpretation of data (cf. FINFL) Multiple factors possible separated by “~” (ascii 126) REFSK - Reference source or key (cf. REFSK) DCFLGs - Data conversion flags from ICES Data Centre (cf. DCFLG). Multiple flags possible separated by “~” (ascii 126) Reference to the uploaded submission (integer). Unique for a submission tblSpotID Reference to the sampling event (integer). Unique for a sampling event tblSampleID Reference to the sample (integer). Unique for a sample tblParamID Reference to the measurement (integer). Unique for the data table

Observations of Symphodus melops were collected from the Baltic Sea area for HELCOM Red List species list. The HELCOM Red List of Baltic Sea species in danger of becoming extinct (2013) is the first threat assessment for Baltic Sea species that covers all marine mammals, fish, birds, macrophytes (aquatic plants), and benthic invertebrates, and follows the Red List criteria of the International Union for Conservation of Nature (IUCN). Almost 2800 species were considered in the Red List assessment and about 1750 were evaluated according to the IUCN Red List criteria. Symphodus melops has been placed to the Red List category of Least Concern (LC) species. The map shows the sub-basins in the HELCOM area where the species is known to occur regularly and to reproduce (HELCOM 2012).

This dataset describes fishing intensity for surface mobile bottom contacting gear in 2015 based on VMS/Log book data processed by ICES Working Group on Spatial Fisheries Data (WGSFD). ICES secretariat collected during 2017 relevant VMS and logbook data for 2009-2016 to produce, as a technical service to HELCOM, updated spatial data layers on fishing intensity/pressure. Improved data quality control checks were implemented. Submitted data across the HELCOM area have improved in quality compared to previous data 2009-2013 published in 2015. Standardized methods were used to produce the requested data layers. The code used to create the data products is available here: https://github.com/ices-eg/wg_WGSFD For further technical information on the advice request, see http://www.ices.dk/sites/pub/Publication%20Reports/Advice/2017/Special_requests/helcom.2017.18.pdf HELCOM secretariat did the following processing to the shapefile provided by ICES: - Conversion to ETRS89LAEA coordinate system - Added feature and attribute "Reported" to display unreported areas. Dataset attribute information: c-square: Unique reference of the c-square polygon Year: Year of fishing activity mid_lat: latitude coordinate of the centroid of c-square inWGS84 decimal degrees mid_lon: longitude coordinate of the centroid of c-square inWGS84 decimal degrees SurfaceSAR: Surface area ratio (Swept area, < 2 cm penetration depth of the gear components) Subsurface: Subsurface area ratio (Swept area, subsurface =>2 cm penetration depth of the gear components) totweight: Total Weight (kg) totvalue: Total value (Euros) Kw Fishing Hours: (Kw*h) Fishing hours: (h) Reported: Yes=Reported data. No= No reported data (area that does not contain effort/intensity value due to lack of reported data). Please note that this dataset was updated (v2) in January 2019, see further details below in the lineage section.