Monitoring Fish Populations on the 3D Reefs
Research and Development
In parallel with the sessile species monitoring program, the AMPN also conducts biannual surveys of fish populations that have settled in and around the 3D-printed reefs. As a reminder, these structures, designed to mimic natural habitats and made from eco-friendly materials, aim to enhance biodiversity.
Since 2017, this rigorous monitoring has been carried out in collaboration with marine biologists from THALASSA Marine Research & Environmental Awareness and Aquanaute Expertise, specialists in Mediterranean marine ecosystems. Using standardized observation protocols, scientists identify present species, measure individual sizes, and assess population density.
The first campaign of 2025 has just concluded, and we hope it will confirm the trends observed between 2017 and 2024, which showed a steady increase in species number, density, and individual size. In total, 36 species have been recorded in or near the reef structures, with densities sometimes exceeding 1,000 individuals, depending on the year.
These results clearly demonstrate that the reefs are fulfilling their intended role, providing a favorable habitat for a rich and diverse fish community.
This program is supported by the Fondation Prince Albert II de Monaco.
Photo credit : Stéphane Jamme - Aquanaute Expertise.
