2023-05-11 10:54:56
A research technician at INRAE in Thonon-les-Bains, Jean-Christophe Hustache pulls up a sampling tube, plunged 30 meters into the waters of Lake Geneva. Sandy Plas
REPORTAGE – The border lake between France and Switzerland is facing a rise in surface temperature which is modifying the balance of its ecosystem.
Thonon les Bains
Leaning over the railing, Jean-Christophe Hustache pulls up the sampling tube by the force of his arms, which was plunged 30 meters into the waters of Lake Geneva. The water contained in the tube of about fifty centimeters is then emptied into bottles, stored in coolers, while waiting to return to the quay. On this morning in early May, the absence of wind and the clear weather above the lake make the conditions “ideal”, according to the research technician, to carry out the operation, which will take place for a little more than a month. hour, on the boat specially equipped for the needs of the scientific teams.
The samples will then go to the cold rooms of the Alpine Center for Research on Food Webs of Limnic Ecosystems (Carrtel), a joint research unit which brings together Inrae and the University of Savoie Mont Blanc and which is located on the shores of the lake, in Thonon-les-Bains (Haute-Savoie). Today, the operation aims…
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