ab88bcde-9bd4-4f1d-818d-c4d01ae62f76 English HELCOM Secretariat data@helcom.fi 2023-04-14T14:02:56 EPSG:3035 Abundance of salmon spawners and smolt HOLAS 3 2023-03-16 https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/ab88bcde-9bd4-4f1d-818d-c4d01ae62f76 This indicator evaluates the status of the Baltic Sea area based on salmon smolt production in rivers flowing into the sea, also making use of additional supporting data on numbers of adult spawners. Determination of whether the threshold value that determines good status is achieved is based on a comparison of estimated smolt production with an estimated potential smolt production capacity. This dataset displays the result of the indicator in HELCOM Assessment Scale 2 (Division of the Baltic Sea into 17 sub-basins). Attribute information: “SB_Code” = Code of the Helcom subbasin "Name" = Name of the Helcom scale 2 assessment unit "AREAKM2" = Area of the Helcom scale 2 assessment unit HELCOM_ID = Helcom id of the Helcom scale 2 assessment unit ICES_AU = ICES assessment unit number Threshold = Threshold Threshold_v = Threshold value for this indicator "Ind_value" = Value for the indicator in Helcom scale 2 assessment unit Status = Status of the indicator (“Good”, “Not good” or “Not assessed”) comment = additional info HELCOM Secretariat data@helcom.fi Habitats and biotopes GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme fish spawning ground GEMET 2018-08-16 geonetwork.thesaurus.external.theme.gemet-en MADS HOLAS3 Core indicator Use constraints: Data can be used freely given that the source is cited (following creative commons license CC-BY). The source should be cited as: “HELCOM HOLAS 3 Dataset (2023)" Access constraints: No limitations on public access. English environment 7.5265 33.7966 52.5359 66.4241 2016-01-01 2021-12-31 ESRI Shapefile 1.0 https://maps.helcom.fi/website/MADS/download/?id=ab88bcde-9bd4-4f1d-818d-c4d01ae62f76 WWW:LINK-1.0-http--link Download Abundance of salmon spawners and smolt HOLAS 3 https://maps.helcom.fi/website/mapservice/?datasetID=ab88bcde-9bd4-4f1d-818d-c4d01ae62f76 WWW:LINK-1.0-http--link View Abundance of salmon spawners and smolt HOLAS 3 Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 The data on salmon smolt production, number of spawners and other data from national monitoring is brought by the national representatives to the annual meeting of the ICES Working Group for Baltic Sea Salmon and Sea Trout (WGBAST). The data is documented in the reports of the group and forms the basis on which the model for salmon smolt production is run. There is currently no common database. The stock data from Kattegat originates from the HELCOM SALAR project report (HELCOM 2011). River surveys include parr density estimates, smolt trapping, monitoring of spawning runs and river catches. Sea surveys include catch data, fishing effort data and catch composition estimates. Joint river and sea surveys include tagging data (tagging in rivers, recaptures from sea and river fishery). Monitoring data from each river are annually collated and processed so that updated estimates of smolt production and potential smolt production capacity (PSPC) are obtained. The procedure for obtaining the PSPC is described e.g. in ICES 2015. The Baltic salmon river stocks are divided into six evaluation areas based on the biological and genetic characteristics of the stocks and associated management objectives (see Assessment protocol figure 1). Stocks of a particular evaluation area are assumed to exhibit similar migration patterns and to be subjected to the same fisheries, experience the same exploitation rates and be affected by management in the same ways. In addition, the genetic variability between stocks of an evaluation area is smaller than the genetic variability between stocks of different areas. The level of confidence of the evaluation is moderate. Additional info: http://helcom.fi/baltic-sea-trends/indicators/zooplankton-mean-size-and-total-stock/ Link to metadata of dataset used for indicator calculation: https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/01eeaf94-6308-44e3-8a25-330dc941821f