This document is a compilation of an attendance list followed by participants' contacts and summaries of the public conference based on presentations and discussions on the theme: Underground aquatic ecosystems in Benin: current status and perspectives. The list of communications is as follows:

• Remote sensing and geographic information system in the identification of groundwater resources in the Donga department (north-western Benin)
• Hydrogeochemical context of aquifers in Benin
• Chemical quality of groundwater in the Kandi Sedimentary Basin (northeastern Benin)
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• Study of paleogenic limestones in the emerged part of the coastal sedimentary basin of Benin
• Why it is necessary to study the biodiversity of underground aquatic fauna today, and especially in African countries (with a view to the sustainable development of our society...)
• Mapping of piezometry in the Kandi sedimentary basin (North-East, Benin)
• Wildlife biodiversity and well water quality in the Sô river watershed in southern Benin
• Groundwater biodiversity and water quality of wells in the Southern region of Benin
• Physico-chemical quality of well water in the Ouémé watershed (Benin, West Africa)
• Biodiversity of groundwater in Benin (West Africa)
• Mobilization of groundwater resources for the supply of drinking water (AEP) in crystalline basement areas
• Hydrogeochemistry of basement aquifers in Benin: the case of aquifers with high fluoride levels in central Benin: the case of aquifers with high fluoride levels