Seasonal Variation of Eutrophication in Some Lakes of Danube Delta Biosphere Reserve

Fluorescence spectroscopy emerges as a promising tool for assessing eutrophication levels in Danube Delta lakes, revealing that cyanobacteria and Cryptophyta significantly contribute to protein-like dissolved organic matter (DOM). This study highlights the seasonal dynamics of phytoplankton assemblages, with cyanobacteria posing potential ecological or human health risks. By analyzing specific phytoplankton pigments and quantifying DOM changes across three lakes, researchers identified key contributors to eutrophication, offering a qualitative evaluation method for water quality in this UNESCO World Heritage Site.

Török, L., Török, Z., Carstea, E. M., & Savastru, D. (2017). Seasonal Variation of Eutrophication in Some Lakes of Danube Delta Biosphere Reserve. Water Environment Research, 89(1), 86–94. Portico. https://doi.org/10.2175/106143016x14733681696248