The dataset contains the location of shellfish mariculture sites from EMODnet ( https://www.emodnet-humanactivities.eu/search-results.php?dataname=Shellfish+Production). Data from HOLAS 2 was used to complement the dataset ( https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/21efdecc-2fd7-4bfb-9832-68c995291bf7). Each point has the following attributes (where available): status (active, inactive, licensed) country owner name area name farm type (Mussels, Oysters, Mussels-Oysters, Clams, Specialised (other), Mixed (other)) production method (Beds, Long lines, Rafts, Saltwater closed (recirculation), Saltwater ponds, Saltwater tanks/raceways,Trestles or trays, Other) production stage (Grow out for human consumption, Hatchery, Nursery, Broodstock, Reproduction, Harvest, Other) purpose (Commercial, Research, Education, Display, Other) products detailed (English translation of the information provided on species grown or authorised in the source) point information (Polygon centroid, Original) depending on how the information is provided in the source (polygons or points) site_id distance to coast (meters) position from coastline (At sea, within the coastline) notes: indication of HOLAS 2 data