Biotic and abiotic data from the baseline study in 2021 for the Westdiep Seafarm and the follow up monitoring of 2022 and 2023

This dataset presents findings from an environmental impact assessment conducted along a gradient extending northeastward from a shellfish farm concession zone. Samples were collected at 20 locations in 2021, and then 10 in 2022 and 2023, using a 0.1 m² Van Veen Grab, assessing sediment grain size distribution and total organic carbon content. Macrobenthos samples were preserved, stained, and analyzed in the laboratory.