ATLASea will produce a massive data base for fundamental biology and health research over the coming decades in the fields of evolution, genetics, developmental biology, phylogenomics, taxonomy, physiology and biochemistry, in order to understand and preserve ecosystems that are critical for biodiversity, human societies and the economy; to improve varieties that are important for aqua and agriculture; and to explore new sources of food and feed.

Sequencing the genomes of 4,500 of the 12,000 species listed in the EEZs of mainland France and the French overseas territories, using targeted phylogenetic coverage based on criteria designed to understand and analyse particularly threatened, fragile, biologically important and economically strategic ecosystems.