New Study: Salinization at Lake Vrana

30.06.2025

Beneath the scenic surface of Croatia's Lake Vrana, researchers have uncovered evidence of climate change's impact. A new study co-led by CeMESS researcher Petra Pjevac (DOME) reveals how rising temperatures and drought are driving the salinization of this freshwater lake, with significant consequences for biodiversity and the global methane cycle.

Petra Pjevac and researchers from the Ruđer Bošković Institute found that saltwater intrusion is altering microbial communities in Lake Vrana's sediment, disrupting methane emissions and threatening the lake's ecological balance. While reduced methane emissions might seem like a climate win, the broader ecological impacts are deeply concerning. This groundbreaking research underscores the urgent need for sustainable water management and further study of salinization in freshwater systems.

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The geological conditions make Lake Vrana an ideal model for studying climate-induced changes in coastal lakes – and a warning signal that should be taken seriously.

Photo: Katarina Kajan