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 2018 Belgian submission for the Marine Strategy Framework Directive (MSFD) linked to descriptor 5, criterion 1. This dataset contains the nutrient concentrations (ammonia, nitrate, nitrite, total nitrogen, phosphorus) measured on water samples taken in the BPNS between 2011 and 2016. The analysis of nutrients (N and P) is ensured by the national monitoring programme at ten sampling locations that are representative for the surrounding water masses. Based on all 2011-2016 results, the relationship with the salt content was calculated and, for each year, the value derived corresponding to a salt content of 33.5. The surface of the area where the nutrient concentrations exceed the respective thresholds was calculated on the basis of the relationship with the winter salt content and a climatology of the spatial distribution of the salt content (see annex D5 of the Belgian MSFD report). The resulting maps give a good overview of nutrient concentrations in the Belgian zone. In order to take into account the coastal-sea gradient and to illustrate the temporal trends in detail, the concentrations were also evaluated in three different areas of the BPNS: the coastal zone, the territorial zone and the open-sea zone. The long-term trends of nutrient concentrations in the three zones were assessed statistically.

This dataset is part of the 2018 Belgian submission for the Marine Strategy Framework Directive (MSFD) linked to descriptor 9, criterion 1. The dataset contains the results of analyses on raw fish, mollusk and crustacean samples originating from the southern North Sea and the Channel and taken as part of the control programme by the Federal Agency for the Safety of the Food Chain. The analyzed substances are metals (cadmium, mercury and lead), dioxins and dioxin-like PCBs, PCBs, PAHs, Cesium 134 and Cesium 137.

This dataset is part of the 2018 Belgian submission for the Marine Strategy Framework Directive (MSFD) linked to descriptor 4, criterion 2. Three distinct datasets are published for this criterion.'Occurrence of breeding seabirds' describes the observation of eight seabird species (Common tern, Black-headed Gull, Herring Gull, Common Gull, Small Black-backed Gull, Yellow-legged gull, Big Stern and Little Stern) on the Belgian coast between 1992 and 2015. 'Density of seabirds' describes the density of seabirds (N birds/km) observed at large in the Belgian part of the North Sea between 1987 and 2016 (three surveys a year). Thirteen species are monitored and the evolution of each species density is shown as diagrams.'Occurrence of important benthic species' describes the results of Van Veen sampling campaigns performed between 2009 and 2014 in the Belgian part of the North Sea. Benthic species are counted and identified (e.g. Annelida, Echinodermata,..).

UNDER EMBARGO - This dataset is part of BE/2023 sampling campagn in SW Greenland fjords (Igaliku and Tunulliarfik). Pelagic community was analysed using Imaging Flow Cytometry (iFCM) with an ImageStream®X Mk II. Cells were grouped into functional size classes—pico-, nano- and microplankton—according to measured cell length. Cells lacking chlorophyll autofluorescence were classified as heterotrophic or chemotrophic organisms, including heterotrophic picoplankton/bacteria (HP; ≤2 µm) and heterotrophic nanoplankton (HN; 2–20 µm). No larger heterotrophs (>20 µm) were visually detected. Autofluorescent cells were considered phototrophic, although this fraction may also include mixotrophic taxa, and comprised picophytoplankton (AP; ≤2 µm), nanophytoplankton (AN; 2–20 µm), and microphytoplankton (AMicro; 20–100 µm). To estimate the biovolume of each plankton class, the two-dimensional cell surface area measured by the IDEAS® imaging software was multiplied by the mean cell width, assuming that cell width approximates the third spatial dimension. Carbon biomass was subsequently derived from biovolume using established carbon–volume relationships. For the HP fraction, carbon content was estimated using the bacterial conversion proposed by Romanova and Sazhin (2010), where volume is expressed in µm³. Although the HP fraction may also include heterotrophic picoeukaryotes, and its biomass may therefore be partly underestimated, this conversion was applied because the fraction was assumed to be numerically dominated by bacteria. For the other protist groups, carbon biomass was derived following Menden-Deuer and Lessard (2000). Carbon values were converted from pg C cell⁻¹ to carbon biomass (µg C L⁻¹) based on cell abundance.

This dataset is part of the 2018 Belgian submission for the Marine Strategy Framework Directive (MSFD) linked to descriptor 8, criterion 4. This dataset contains measurements on the 7-Ethoxyresorufin-O-deethylase (EROD) activity in Limanda limanda, Imposex (OTIN in Mytilus edulis), fish diseases and counts of oiled common guillemots in the Belgian part of the North Sea.

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 military use zones: Mine warfare exercise zone – QZR 040 (Art. 21§1.1°), Mine warfare exercise zone – NBH-10 (Wenduine) (Art. 21§1.2°), Mine warfare exercise zone – NB-01 (Westhinder) (Art. 21§1.3°), Mine warfare exercise zone (Buiten Ratel) (Art. 21§1.4°), Belgisch Nationaal Oefengebied voor Marineschepen (BNOM) (Art. 21§1.5°), Shallow Water Zone (Art. 21§1.6°), Zone for detonation exercises and operations (Art. 21§2), Lombardsijde firing sector: small sector (Art. 21§3.1°), Lombardsijde firing sector: middle sector (Art. 21§3.2°), Lombardsijde firing sector: large sector (Art. 21§3.3°), Paardenmarkt munitions disposal site (Art. 22§1). 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 2018 Belgian submission for the Marine Strategy Framework Directive (MSFD) linked to descriptor 6, criterion 5. It comprises three datasets used to assess the sea floor integrity for ensuring a proper functioning of the ecosystem.The dataset on the study of the fauna associated with cobble fields (hard substrates) describes the gravel analysis performed in the Belgian part of the North Sea between 2015 and 2017. Information on the location, date and procedure used for the sediment sampling is provided as well as the description of species found in the samples.The occurrence of important benthic species. The status of benthic habitats (soft substrates).

This dataset is part of the Belgian submission for the 2018 Marine Strategic Framework Directive (MSFD) and reports on descriptor 1, criterion 6. This dataset describes the soft benthos analysis performed in the Belgian part of the North Sea between 2010 and 2016. Information on the location, date and procedure used for the sediment sampling is povided as well as the description of the species found in the samples. Based on this dataset, the Belgian MSFD reporting concluded that the benthic habitat quality is clearly lower in areas where a certain activity interferes with the environment in an intensive way.

The Scientific Service Management Unit of the Mathematical Model of the North Sea of the Royal Belgian Institute for Natural Sciences has been operating monitoring stations on the Belgian Part of the North Sea since the 1970s. These stations are located in the Scheldt estuary, at open sea and in coastal waters. In 2007, 10 new stations were designated and were placed in the monitoring network needed for the OSPAR convention, the Water Framework Directive and the Marine Strategic Framework Directive. These replaced a series of 54 previous monitoring stations whose data was gathered throughout the years for the Belgian Monitoring Programme and reported according to the recommendations of the OSPAR Convention. This dataset contains information on all monitoring stations ever used by the Scientific Service Management Unit of the Mathematical Model of the North Sea. The dataset provides location, name, operational history and for which reporting obligations they are used.