This application is intended for boaters and sea professionals wishing to participate in the inventory of different groups of species of the lagoon: marine mammals, rays, sharks, large reef fish, rare turtles, invertebrates, birds and species under surveillance.


To share your observations in a few clicks on your phone and tablet:
- Specify the group of species then the species observed in the list
- Enter your observations in real time using the geolocation function
- Specify your observation by noting the number of people present
- Add photos if you have some.
- Validate your observation. You can send it later if you do not have a connection.


Ask for your login codes on www.tsiono.fr. Access the results in the report of observations, differentiate the species in the identification guide, test your knowledge with the quiz and fill up the information in the toolbox.

TsiOno is an initiative of the Marine Nature Park of Mayotte (French Agency for Biodiversity).