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Life + Nature Preservation of Margaritifera margaritifera and restoration of river continuity of the Upper Dronne River (Life+ Marga Haute-Dronne)
Date du début: 1 juin 2014, Date de fin: 31 mai 2020,
Background
Aquatic species are considered to be some of the most endangered species in Europe. This is certainly the case of the freshwater pearl mussel, whose population has declined by more than 90% across the continent. In France, the decline has been more dramatic and represents more than 99% of the population.
Currently, the population is estimated ...
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