UNDER EMBARGO - This dataset contains the data on porewater nutrients, sediment granulometry, and pigment concentrations that were collected in the C-power offshore wind farm in spring, summer, and autumn of 2022 for the OUTFLOW project. Data were gathered at increasing distances from the scour protection layer (SPL) of a wind turbine, 7, 15, 25, and 75 m away from the edge. Cores were collected by divers, and a boxcore was used for samples 75 m away. From these cores, porewater nutrients were collected with rhizon samplers, and cores were slices in 0.5 to 2 cm slices, and each slice was analyzed for total organic carbon, total nitrogen, granulometry, and algal pigment concentrations.

The Royal Decree of 20 March 2026 establishing the marine spatial plan for the period 2026 to 2034 in the Belgian marine areas defines 13 dredging zones: Dredge spoil disposal zone S1 (Art. 15§1.1°), Dredge spoil disposal zone S2 (Art. 15§1.2°), Dredge spoil disposal zone "Public Works Ostend" (Art. 15§1.3°), Dredge spoil disposal zone "Public Works Zeebrugge East" (Art. 15§1.4°), Dredge spoil disposal zone "Public Works Zeebrugge West" (Art. 15§1.5°), Dredge spoil disposal site "Public Works Nieuwpoort" (Art. 15§1.6°), Dredge spoil disposal zone "Zeebrugge Erosion Pit" (Art. 15§1.7°), Zone 1 for future replacement of dredge spoil zone S1 (Art. 15§4.1°), Zone 2 for future replacement of dredge spoil zone S1 (Art. 15§4.2°), Search zone 1 for future replacement of Zeebrugge East and West (Art. 15§6), Search zone 2 for future replacement of Zeebrugge East and West (Art. 15§6), Search zone 3 for future replacement of Zeebrugge East and West (Art. 15§6), Dredge spoil disposal zone for future replacement "Public Works Nieuwpoort" (Art. 15§8). It replaces the 2020 Marine Spatial Plan. Please refer to the Belgian official gazette ("Moniteur belgeBelgisch Staatsblad") for official reference information.

The Royal Decree of 20 March 2026 establishing the marine spatial plan for the period 2026 to 2034 in the Belgian marine areas defines 1 measuring pole: Measurement poles (Art. 25§2). It replaces the 2020 Marine Spatial Plan. Please refer to the Belgian official gazette ("Moniteur belgeBelgisch Staatsblad") for official reference information.

The law of 13 June 1969 defines “Belgian Continental Shelf” as follows: the seabed and the subsoil of the marine areas adjacent to the Belgian coast but beyond the Belgian territorial sea.

This dataset is part of the 2024 Belgian submission for the Marine Strategy Framework Directive (MSFD) linked to descriptor 1, criterion 1. It reports the mortality rate of marine mammals, in particular harbour porpoise (Phocoena phocoena), from incidental bycatch in the Belgian part of the North Sea, combining strandings investigations, reported incidental catches and aerial abundance surveys.

This dataset is part of the 2024 Belgian submission for the Marine Strategy Framework Directive (MSFD) linked to descriptor 10, criterion 1. The seafloor dataset describes the litter gathered between 2012 and 2014 during beam trawl (BTS) fishery surveys in the Belgian part of the North Sea (BPNS). It provides the date, location and haul information, type of litter found and information on the size of the items. Additionally the ship name and cruise references are reported. The data is recorded following ICES guidelines allowing future inclusion in the ICES online database DATRAS (Database of Trawl Surveys). The sludge dataset describes the litter found between 2013 and 2016 on dredge disposal sites located in the coastal area of the Belgian part of the North Sea (BPNS). It provides the date, location, amount and type of litter as well as methodological information (e.g. mesh size). Additionally, the ship name and cruise references are reported. The beach litter dataset contains information on beach litter for the period 2016-2021, washed ashore on reference beaches (Oostende Halve Maan, Oostende Raversijde and, from 2020 onwards, Nieuwpoort Lombardsijde). 17 surveys (100m transects) have been executed until Spring 2021. Monitoring & data recording has been done according to the OSPAR Guideline for Monitoring Marine Litter on the beaches in the OSPAR maritime area (OSPAR, 2010). Besides the number of litter items, the category is also noted. The dataset is characterized by a high variation in the number of items. The data are under consideration to be reported to the OSPAR beach litter database, under the condition that the data cannot be used for trend analyses, because of the nature of the data.

The Royal Decree of 20 March 2026 establishing the marine spatial plan for the period 2026 to 2034 in the Belgian marine areas defines 12 sand and gravel extraction zones: Sand and gravel extraction sector 1a (Thorntonbank) (Art. 19§1.1°), Sand and gravel extraction sector 4d (Art. 19§1.10°), Sand and gravel extraction sector 5 (Blighbank) (Art. 19§1.11°), Sand extraction sector 2kb (Kwintebank) (Art. 19§1.2°), Sand extraction sector 2br (Buiten Ratel) (Art. 19§1.3°), Sand extraction sector 2od (Oostdyck) (Art. 19§1.4°), Sand and gravel extraction sector 3a (Sierra Ventana) (Art. 19§1.5°), Sand and gravel extraction sector 3b (Sierra Ventana) (Art. 19§1.6°), Sand and gravel extraction sector 4a (Noordhinder) (Art. 19§1.7°), Sand and gravel extraction sector 4b (Oosthinder North) (Art. 19§1.8°), Sand and gravel extraction sector 4c (Oosthinder South) (Art. 19§1.9°), Extraction search zone (Art. 19§4). It replaces the 2020 Marine Spatial Plan. Please refer to the Belgian official gazette ("Moniteur belgeBelgisch Staatsblad") for official reference information.

The Royal Decree of 20 March 2026 establishing the marine spatial plan for the period 2026 to 2034 in the Belgian marine areas defines 13 nature conservation areas: Seabed integrity zone: Zone 1, upper (Art. 10§1.1°), Seabed integrity zone: Zone 2, middle (Art. 10§1.2°), Seabed integrity zone: Zone 3, lower (Art. 10§1.3°), Ramsar area (Art. 11), Special Area of Conservation "Vlaamse Banken" (Art. 8§1), Special Area of Conservation "Vlakte van de Raan" (Art. 8§3), Special Protection Area for Birds: SPA 1 (Art. 8§5.1°), Special Protection Area for Birds: SPA 2 (Art. 8§5.2°), Special Protection Area for Birds: SPA 3 (Art. 8§5.3°), Marine reserve: Zone 1, upper (Art. 9§1.1°), Marine reserve: Zone 2a, middle (Art. 9§1.2°), Marine reserve: Zone 2b, middle (Art. 9§2), Marine reserve: Zone 3, lower (Art. 9§3). It replaces the 2020 Marine Spatial Plan. Please refer to the Belgian official gazette ("Moniteur belgeBelgisch Staatsblad") for official reference information.

This dataset is part of the 2024 Belgian submission for the Marine Strategy Framework Directive (MSFD) linked to descriptor 3, criteria 1, 2 and 3. It provides the fishing mortality rate, spawning stock biomass and population age/size distribution of commercially-exploited fish and shellfish in the Belgian part of the North Sea, combining fishery-independent survey data (Beam Trawl Survey and Demersal Young Fish Survey) with fishery-dependent observer-at-sea data collected under the Common Fisheries Policy Data Collection Framework. ICES provides the resulting scientific advice to the governments and international regulatory bodies that manage the North Atlantic Ocean and adjacent seas.

The Royal Decree of 20 March 2026 establishing the marine spatial plan for the period 2026 to 2034 in the Belgian marine areas defines 7 energy, cable and pipeline zones: Renewable energy zone: Zone 1, Eastern Zone (Art. 12§1), Princess Elisabeth renewable energy zone: Zone 2a, Noordhinder North (Art. 12§2.2a°), Princess Elisabeth renewable energy zone: Zone 2b, Noordhinder South (Art. 12§2.2b°), Princess Elisabeth renewable energy zone: Zone 2c, Fairybank (Art. 12§2.3°), Modular offshore grid for electricity transmission (Art. 12§4), Safeguard zone of the Eastern Zone (Art. 12§5), Pipeline and cable corridor (Art. 13§1). It replaces the 2020 Marine Spatial Plan. Please refer to the Belgian official gazette ("Moniteur belgeBelgisch Staatsblad") for official reference information.