This dataset contains core indicator results developed under the HELCOM Third Holistic Assessment of the Ecosystem Health of the Baltic Sea (HOLAS 3).

This core indicator evaluates the status of the marine environment based on concentrations of heavy metal Lead (Pb) in water, biota and sediments. Quantitative thresholds are used to classify core indicators status in “Achieve”, “Fail” or “Not assessed”. Threshold values are based on Environmental quality standards (EQS), defined at EU level for substances included in the priority list under the Water Framework Directive. This dataset displays the result of the indicator in HELCOM Assessment Scale 4 (Division of the Baltic Sea into 17 sub-basins and further division into coastal and off-shore areas and division of the coastal areas by WFD water types or water bodies). Attribute information: "OBJECTID" = Object identification "HELCOM_ID" = Code of the HELCOM scale 4 assessment unit "Descriptio" = Description of the HELCOM scale 4 assessment unit "AULEVEL" = Assessment unit level used for the indicator "Contamination ratio in biota" = Contamination ratio in biota for this substance "Status in biota" = Status of the indicator in biota (“Achieve”, “Fail” or “Not assessed”) "Contamination ratio in sediment" = Contamination ratio in sediment for this substance "Status in sediment" = Status of the indicator in sediment (“Achieve”, “Fail” or “Not assessed”) "Contamination ratio in water " = Contamination ratio in water for this substance "Status in water" = Status of the indicator in water(“Achieve”, “Fail” or “Not assessed”) "Overall Status" = Overall Status of the indicator according to one-out-all-out (“Achieve”, “Fail” or “Not assessed”)

Observations of Cottus gobio 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. Cottus gobio 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 Amblyraja radiata 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. Amblyraja radiata 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).

Input data for the Navigation Safety Analytical Module on ReMAP project, created in 2024 and compiled from different data sources is provided. Below is further information on datasets applied for the module and original metadata. More information about the module and the project can be found at http://www.geoportal.ulpgc.es/remap/ The following datasets were directly collected from MADS and no modifications were applied: - Impulsive noise data points (https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/088099de-f6b8-4a2f-aca0-bbe178318268) - Impulsive noise data polygons (https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/088099de-f6b8-4a2f-aca0-bbe178318268) - Harbour porpoise importance map HOLAS 3 (https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/cb250787-ae97-4452-9caa-eba9abe0ec4e) - Grey seal distribution HOLAS 3 (https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/37ab54cc-1084-4bcd-a76d-2c2738491081) - Harbour seal distribution HOLAS 3 (https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/37ab54cc-1084-4bcd-a76d-2c2738491081) - Ringed seal distribution HOLAS 3 (https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/37ab54cc-1084-4bcd-a76d-2c2738491081) - Hazardous wrecks in the Baltic Sea (https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/f3cfc0d8-d28b-4c5d-b9eb-f456d294e720) - Baltic Sea EBSAs (https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/828468c6-dd88-408c-97d3-ce9c926681f0) The following datasets were directly collected from EMODnet and no modifications were applied: - MSP standardized data in with EMODnet data model (https://emodnet.ec.europa.eu/geonetwork/srv/eng/catalog.search#/metadata/5d89d371-a52a-476b-92de-a423f6d2c15d) - EMODnet lighthouse (https://emodnet.ec.europa.eu/geonetwork/srv/eng/catalog.search#/metadata/94d616f7-340d-4a67-a07c-dc54ec215cc3) - EMODnet MPA (https://emodnet.ec.europa.eu/geonetwork/srv/eng/catalog.search#/metadata/8ee2d464-c628-4e4c-8308-be48a2da121e) - Vessel density EMODnet (https://emodnet.ec.europa.eu/geonetwork/srv/eng/catalog.search#/metadata/0f2f3ff1-30ef-49e1-96e7-8ca78d58a07c) - Military area(https://emodnet.ec.europa.eu/geonetwork/srv/eng/catalog.search#/metadata/579e4a3b-95e4-48c6-8352-914ebae0ae1d) - EMODnet bathymetry (https://emodnet.ec.europa.eu/geonetwork/srv/eng/catalog.search#/metadata/4f7ab468-f4b9-4c2c-8d3b-49a375cf9964) - EMODnet mean sea level (https://emodnet.ec.europa.eu/geonetwork/srv/eng/catalog.search#/metadata/36821cff-56db-4e96-8426-ddfe68240c4b) - EMODnet aggregate extraction (https://emodnet.ec.europa.eu/geonetwork/srv/eng/catalog.search#/metadata/fde45abd-7bf3-4f05-869c-d1ce77f4ac63) - EMODnet dredging (https://emodnet.ec.europa.eu/geonetwork/srv/eng/catalog.search#/metadata/d3e86612-35a7-4c0f-a995-245062fd2792) - EMODnet wind farm (https://emodnet.ec.europa.eu/geonetwork/srv/eng/catalog.search#/metadata/8201070b-4b0b-4d54-8910-abcea5dce57f) - EMODnet aquaculture (https://emodnet.ec.europa.eu/geonetwork/srv/eng/catalog.search#/metadata/03c35b79-808f-4168-9d30-2de44a55a6f4 ; https://emodnet.ec.europa.eu/geonetwork/srv/eng/catalog.search#/metadata/55886bab-2932-4d6d-bfe3-06626b0172ab) - EMODnet main ports (https://emodnet.ec.europa.eu/geonetwork/srv/eng/catalog.search#/metadata/379d0425-8924-4a41-a088-1a002d2ea748) - EMODnet offshore installations (https://emodnet.ec.europa.eu/geonetwork/srv/eng/catalog.search#/metadata/ddbe3597-4e3f-4e74-8d31-947c4efef2e9) - EMODnet pipeline (https://emodnet.ec.europa.eu/geonetwork/srv/eng/catalog.search#/metadata/aca3dd01-77ac-47fe-8291-6ca916daaa6d) - EMODnet dumped munition (https://emodnet.ec.europa.eu/geonetwork/srv/eng/catalog.search#/metadata/661aa259-8ea9-49ae-a39d-49685057b013) The following datasets were harmonized according to the module data model: - cables (original dataset on https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/9026b43c-7da8-4a8f-8854-4a4dba50fb12)

This core indicator evaluates the status of abundance of wintering waterbirds in the Baltic Sea region, here visualized for grazing feeders. The wintering waterbirds are considered to reflect good status when at least 75% of the considered species deviate less than 30% downwards (species laying more than one egg per year) or 20% downwards (species laying one egg per year) from the baseline condition during the reference period 1991-2000. This dataset displays the result of the indicator in HELCOM Assessment Scale 3 (Division of the Baltic Sea into 17 sub-basins and further division into coastal and offshore areas). Attribute information: "HELCOM_ID" = ID of the HELCOM scale 3 assessment unit "country" = Country "Group area" = Name of the group area "level_2" = Name of scale 2 HELCOM assessment unit (subbasin) "level_3" = Name of scale 3 HELCOM assessment unit "Area (km2)" = Area of HELCOM assessment unit "coastal" = HELCOM ID of the coastal areas "open_sea" = Open sea assessment unit name "Abundance" = Assessed parameter "Threshold" = Threshold value "Wading feeders" = Results for the category "Wading feeders status" = Status of the indicator (“Achieve”, “Fail” or “Not assessed”) "Surface feeders" = Results for the category "Surface feeders status" = Status of the indicator (“Achieve”, “Fail” or “Not assessed”) "Pelagic feeders" = Results for the category "Pelagic feeders status" = Status of the indicator (“Achieve”, “Fail” or “Not assessed”) "Benthic feeders" = Results for the category "Benthic feeders status" = Status of the indicator (“Achieve”, “Fail” or “Not assessed”) "Grazing feeders" = Results for the category "Grazing feeders status" = Status of the indicator (“Achieve”, “Fail” or “Not assessed”) "AULEVEL" = Assessment unit level used for the indicator

This dataset represents the underlying biota data on core indicator Polybrominated diphenyl ethers (PBDE) .The core indicator evaluates the status of the marine environment based on concentrations of Polybrominated diphenyl ethers (PBDE) in biota and sediment. Quantitative thresholds are used to evaluate if core indicators status is Achieve, Fail or Not assessed. This dataset displays the result of the indicator in HELCOM Assessment Scale 4 (Division of the Baltic Sea into 17 sub-basins and further division into coastal and off-shore areas and division of the coastal areas by WFD water types or water bodies). Attribute information: "region" = name of subbasin "country" = country/ opensea "station" = Unique code for the station "stationNam" = name for the station "determinan" = determinant parameter "detGroup" = the grouping of determinands used to display the results "species" = species of measurement "_shape" = shape used to map assessment results "colou"r = colour used to map assessment results "l3area" = HELCOM assessment unit on scale 3 "l4area" = HELCOM assessment unit on scale 4 "nyall" = total number of years of data "nyfit" = number of years of data used in the assessment "nypos" = number of years with at least one measurement above the limit of detection "lastyear" = most recent year of data "prtrend" = the significance of the change over the most recent 20 years; for the assessment conducted in November 2017 and published in June 2018, this is the period 1996-2016 "rtrend" = annual ‘linear’ change over the most recent 20 years "meanLY" = fitted value in last monitoring year "clLY" = upper one-sided 95% confidence limit on fitted value in last monitoring year "HQS" = Threshold value "HQSdiff" = difference between clLY and HQS "HQSbelow" = whether the mean value in the last monitoring year is significantly below HQS

This dataset contains data used for assessing the HELCOM core indicator Reproductive status of seals 2018. The data has been collated by indicator leads based on national monitoring data. For this dataset, the data is aggregated and summarized by ICES Subdivisions. Attribute information: "Major_FA" = FAO Major Area "SubArea" = FAO Subarea "Division" = ICES division "Area_km2" = Area of ICES sub-division "Country" = Country "Species" = Seal species "Code" "Year" = Year of data collection "Date" = Date of data collection "Month" = Month of data collection "Sex" = Sex of the collected individual "Swedish_re" "ICES_SD" = ICES sub-division "Age" = Age of the collected individual "Cause_of_d" = Cause of death "Length" = Lengh of the collected individual "Pregnant" "Data_sourc" = Data source "Data_origi" = Country of the data "Data_restr" = Data restriction

This dataset represents the underlying sediment data on core indicator Heavy metals – Lead.The core indicator evaluates the status of the marine environment based on concentrations of heavy metal Lead (Pb) in water, fish liver and sediments. Quantitative thresholds are used to evaluate if core indicators status is Achieve, Fail or Not assessed. Threshold values are based on Environmental quality standards (EQS), defined at EU level for substances included in the priority list under the Water Framework Directive. The Core indicator displays the result of the indicator in HELCOM Assessment Scale 4 (Division of the Baltic Sea into 17 sub-basins and further division into coastal and off-shore areas and division of the coastal areas by WFD water types or water bodies). Attribute information: "region" = name of region "country" = country "station" = Unique text that identifies the station "stationNam" = name for the station "determinan" = determinant parameter (PB = Lead) "detGroup" = the grouping of determinands used to display the results "_shape" = shape used to map assessment results "colour" = colour used to map assessment results "l3area" = HELCOM assessment unit on scale 3 "l4area" = HELCOM assessment unit on scale 4 "nyall" = total number of years of data "nyfit" = number of years of data used in the assessment "nypos" = number of years with at least one measurement above the limit of detection "lastyear" = most recent year of data "prtrend" = the significance of the change over the most recent 20 years; for the assessment conducted in November 2017 and published in June 2018, this is the period 1996-2016 "rtrend" = annual ‘linear’ change over the most recent 20 years "meanLY" = fitted value in last monitoring year "clLY" = upper one-sided 95% confidence limit on fitted value in last monitoring year "EQS" = Threshold value "EQSdiff" = difference between clLY and EQS "EQSbelow" = whether the mean value in the last monitoring year is significantly below EQS

This dataset represents the Integrated biodiversity status assessment for grey seals. Status is shown in five categories based on the integrated assessment scores obtained in the tool. Biological quality ratios (BQR) above 0.6 correspond to good status. The status of the grey seals was assessed using four core indicators: - Population trends and abundance of seals - Distribution of Baltic seals - Nutritional status of seals - Reproductive status of seals. The assessment is based on the one-out-all-out approach, i.e. the indicator reflecting the worst status in each assessment unit. This dataset displays the result of the integrated biodiversity status in HELCOM Assessment unit Scale 2 (Division of the Baltic Sea into 17 sub-basins). Attribute information: "HELCOM_ID" = ID of the HELCOM scale 2 assessment unit "level_2" = Name of the HELCOM scale 2 assessment unit "EcosystemC" = Ecosystem component analyzed "BQR" = Biological Quality Ratio "Conf" = Confidence of the assessment "Total_indi" = Number of indicators used "Area_km2" = Area of scale 2 assessment unit "F_of_ar_1" = Share of total area assessed "D1CX" = MSFD descriptor 1 criteria X "conf_D1C_1" = Confidence of the MSFD descriptor 1 criteria 2 "STATUS" = Status assessment category (0-0.2 = not good (lowest score), 0.2-0.4 = not good (lower score), 0.4-0.6 = not good (low score), 0.6-0.8 = good (high score, 0.8-1.0 = good (highest score))