In Guerande salt, none of the three most represented genera by metagenomics (Halobacterium, Halorhabdus and Haloplanus) were identified on culturemedia. In La Baleine coarse sea and HâlenMôn salts, the genera isolated were minor actors of the correspondingmetagenomic diversity. Besides, two salts used in the pyrosequencing experiment did not give rise to colony growth: Palm Island black and Dead Sea salts.