This dataset represents the location of the Princess Elizabeth zone in the Belgian Part of the North Sea as described in the Royal Decree of May 22th, 2019, establishing a marine spatial plan for the period 2020-2026. Art. 8. § 3.

This dataset is part of the 2024 Belgian submission for the Marine Strategy Framework Directive (MSFD) linked to descriptor 1, criterion 2. This dataset reports the population abundance (number of individuals, biomass) of benthic-feeding, pelagic-feeding, surface-feeding and wading birds in Belgian waters, combining yearly breeding-colony nest counts along the Belgian coast with ship-based at-sea seabird counts.

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 contains marine organic matter source samples, artificial mixtures of known composition, and compound-specific nitrogen stable isotope data of amino acids (δ¹⁵N-AA). Source materials include phytoplankton, zooplankton, and faecal pellets from the marine fouling species Mytilus edulis and Metridium senile. Samples were collected and processed in the laboratory under controlled conditions. Artificial mixtures were prepared by combining source materials in defined proportions to generate experimental samples representing multiple marine organic matter source combinations. Metadata describing sample collection, preparation, and mixture composition are included. Compound-specific nitrogen isotope ratios of individual amino acids were measured using stable isotope analysis. The dataset includes isotopic measurements for all source samples and artificial mixtures, along with associated metadata required to document sampling, laboratory preparation, and analytical procedures.

This dataset is part of the 2024 Belgian submission for the Marine Strategy Framework Directive (MSFD) linked to descriptor 8, criterion 1. This dataset reports concentrations of tributyltin (TBT) compounds in biota (mussels Mytilus edulis and flounder Platichthys flesus) in the Belgian part of the North Sea.

This dataset is part of the 2024 Belgian submission for the Marine Strategy Framework Directive (MSFD) linked to descriptor 6, criterion 4. This dataset reports the ratio of hard-substrate surface area (colonised by hard-substrate epifauna) to soft-sediment surface area in the Belgian part of the North Sea (BPNS), which should not show a negative trend.

This dataset represents the exact location of the wind turbines in the Belgian Part of the North Sea.

This dataset is part of the 2024 Belgian submission for the Marine Strategy Framework Directive (MSFD) linked to descriptor 6, criterion 2. This dataset describes and maps the physical disturbance to the seabed in the Belgian part of the North Sea (BPNS) between 2010 and 2021. The dataset combines different layers of human activities leading to a disturbance of the seabed, including 'soft' beach and foreshore nourishments, dredging and dumping, sand extraction, fisheries, burial of cables, war ammunition stocking and construction of wind farms. The area disturbed is mapped and quantified per year and per activity, and plotted on the predominant broad-scale benthic habitat types of the EUSeaMap 2023. Infield cables from wind farms and Elia cables (NEMO and MOG) are not shown due to mutual agreements. This dataset is part of the 2024 Belgian submission for the Marine Strategy Framework Directive (MSFD) linked to descriptor 6, criterion 1. This dataset describes and maps the physical loss of the seabed in the Belgian part of the North Sea (BPNS) between 2010 and 2021. The dataset combines different layers of human activities leading to a loss of the seabed, including 'hard' coastal defence structures, ports, measuring poles and radar station, protection of pipelines and cables, construction of wind farms, and wrecks and other obstacles. The area lost is mapped and quantified per year and per activity, and plotted on the predominant broad-scale benthic habitat types of the EUSeaMap 2023.

This dataset is part of the 2024 Belgian submission for the Marine Strategy Framework Directive (MSFD) linked to descriptor 6, criterion 5. It reports on the condition of benthic habitats in the Belgian part of the North Sea (BPNS), combining soft-sediment macrobenthos monitoring (in the framework of dredge disposal/sand extraction impact assessment, and offshore wind farm monitoring) with natural hard-substrate benthos monitoring, to evaluate adverse effects on the biotic and abiotic structure and function of benthic habitat types.

UNDER EMBARGO - This dataset contains seasonal physiological measurements from controlled laboratory experiments on two dominant suspension-feeding species expected to colonise floating offshore structures: the blue mussel (Mytilus edulis; AphiaID 140480) and the wrinkled barnacle (Balanus crenatus; AphiaID 106215). The measured parameters include clearance rates, respiration rates, faecal pellet production rates, and faecal pellet sinking velocities. Mussels were collected from an aquaculture longline at the Westdiep SeaFarm, while barnacles were manually retrieved from the intertidal beachhead at Raversijde (Oostende, Belgium). All experiments were conducted using natural seawater collected from offshore sites in the Belgian part of the North Sea. Measurements were repeated across multiple seasons to capture temporal variability in physiological performance. The dataset was produced within the SWiM and EcoMPV projects and is suitable for reuse in ecosystem and biogeochemical modelling, including simulations of phytoplankton dynamics associated with large-scale offshore marine photovoltaic (MPV) developments.