The Posidonia Monitoring Network of the Balearic Islands is a project that was born in 2020 and has been promoted by several competent administrations in the field of Environment. Currently, the Ministry of Environment and Territory of the Government of the Balearic Islands is the promoter, with the voluntary participation of numerous entities and divers. Through technical staff from Tragsatec and numerous volunteers, the network aims to monitor the state of Posidonia meadows in the Balearic archipelago.

Fondo posidonia


Start: 2000
Stations: 30 (GOIB) + 7 (GEN-GOB).
The number increases each year.
Study area: Mallorca, Menorca, Ibiza, and Formentera.
Over 105 volunteers.
Over 26 entities (dive centers, NGOs, …).

The methodology is based on the periodic monitoring of fixed stations distributed around the islands of the Balearic archipelago, with Posidonia as a priority in data collection.

In parallel, the presence of noble pen shells (Pinna nobilis and Pinna rudis) and different species of invasive algae are also recorded. Additionally, continuous measurements of water temperature are taken.

The data is collected through diving with autonomous equipment.

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