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The coastal beach-dune systems along the Bulgarian coast are of significant ecological import, necessitating rigorous monitoring and management. Oversight and dune management inaccuracies have been recurrently identified, particularly within the Bulgarian Black Sea coast cadastral registers. This research highlights discrepancies in depositional areas, such as Asparuhovo-Varna, Byala, Burgas-South, and Poda beach-dune systems. The coastal dunes within these regions have been systematically documented through detai...

The study presents the first comprehensive spatio-temporal analysis of eutrophication and the consequent loss of sensitive aquatic habitats in the transitional water bodies along the Kamchiya-Shkorpilovtsi sector of the Bulgarian Black Sea coast. The research focuses on the Maznia Azmak Lake, an old Kamchiya riverbed integral to the Kamchia Nature Reserve and two Natura 2000 protected areas. The primary objective was to assess the scale and rate of eutrophication and its impact on aquatic habitats, employing moder...