Qualitative and Quantitative Data on Macrobenthic Fauna of the Romanian Sector of the Danube River: 2021 Sampling Campaigns (May and September) – PN 19 20 02 04, National Project

This study provides both qualitative and quantitative analyses of macrobenthic fauna, aiming to establish an annual monitoring network and evaluate the conservation status of selected sites. The research was conducted within the framework of the national project “Development of an Integrated Management Framework for Pilot Areas in the Romanian Sector of the Danube River, Influenced by Climate Change and Anthropogenic Interventions, through the Application of Advanced Investigation Methodologies (Geophysical, Remote Sensing, Sedimentological, Morphological, Biological)” (PN 19 20 02 04). Between May 6 and May 22, 2021, a total of 22 samples were collected, followed by 19 additional samples gathered between September 9 and September 25, 2021. Sampling was carried out in the following sectors: Downstream Corabia (km 626–631), Bechet (km 674–678), Pisculeț–Desa (km 760–765), and Golenți–Cetate (km 805–811).