Spatial distribution of quarterly harbor seals (Phoca vitulina) identified by Aérobaie and the Réserve Naturelle du Domaine de Beauguillot (Nature Reserve of Beauguillot) on their haul out sites in the Bay of Somme from 2007 to 2009 inclusive.

Seasonal spatial distribution of gray seals (Halichoerus grypus) on their haul out sites identified by the ONCFS on the rocks of Portsall in 2010.

Quarterly spatial distribution of gray seals (Halichoerus grypus) identified by the LPO (Seven Islands Nature Reserve) on haul out sites in the Seven Islands archipelago, from 2007 to 2009 inclusive.