Abstract
Marine dredging is an excavation activity carried out worldwide. Dredging is a critical component of most major infrastructure developments of the lakes. This research work was conducted, using two epoch data (year 2016 and year 2022), to investigate changes in the morphometry of Lake Manzala. Data acquisition was done using depth sounding with an echo sounder and GPS, and further processing was done using ArcGIS 10.7.1 software. Results obtained for dredging activities in Lake Manzala were as follows: a slight change in its surface area, the most aquatic macrophytes were removed, the inside fish farms have been completely removed, the appearance of mud islands, and a high amount of removed sediment. The total removed area is estimated at 524.94 million m3 from Lake Manzala. With a continuous dredging process, the results of the manuscript serve as good reference material for decision and policy formulation relating.
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