Boats on Tonle Sap#
![Boats on Tonle Sap Boats on Tonle Sap](/attach/Geography/Asia/Cambodia/Pictures/Factbook_Pictures/350cb/scaled-800x656-350cb.jpg)
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During the monsoon season, waters from the flooding Mekong River back up raising the lake depth to about nine meters. This annual pulsing over a large floodplain brings in high sediment and nutrient fluxes allowing for rich aquatic diversity.
Tonle Sap is one of the most productive inland fisheries in the world.