Zmajevo oko is a naturally eutrophicated saline lake situated on the Gradina Peninsula, close to
the village of Rogoznica on the central Dalmatian coast. Since 1992 the Lake has been intensively
studied and in 2011 hydrographic and water column stratification in relation with reduced sulfur
species and microbial activity was investigated during two different seasons: the spring-summer
stratification and autumn mixing period