Answer: Egypt
Notes: Recently, researchers from the National Institute of Oceanography and Fisheries in Cairo studied Lake Manzala in Egypt from 2015 to 2022. The study found that dredging in the lake led to higher salinity and lower nutrient levels in 2022 compared to 2015. These changes affected the lake’s water chemistry and zooplankton in the northern and middle parts of the lake. The findings were published in May 2025 in the journal Nature under the title “Evaluating the restoration of Lake Manzala after dredging using water quality parameters and zooplankton changes.” Lake Manzala, located in northern Egypt, borders the Mediterranean Sea and acts as a flood buffer for nearby coastal cities. It also supports biodiversity in the Mediterranean region and protects farmland from seawater intrusion.
