To protect, we need knowledge.

• What shark and ray species are present in the shallow waters of the French West Indies?
• When are these species present?
• Are they present on all the islands?
• What are the potential local threats to their populations?
• Are they in contact with human activities?

With so many questions in need of an answers, we came up with two main methods to collect the necesarry knowledge:

• Scientific monitoring based on aerial surveys. The shallow waters of the French West Indies were explored with a drone. This method makes it possible to identify the species present and count the number of individuals which frequent the shallow waters.
• Aquisition and valorisation of sea user's knowledge. Who is best placed to know the sea? The local users! Fishermen, divers, swimmers use the sea every day. Participatory science was used to record sightings of sharks and rays. The collected data made it possible to produce distribution maps for each species and to collect information about shark and ray interactions with humain activities.