Development of a coral reef monitoring tool based on eco-acoustics
Technology marketed by a partner
- Know-how + Software
- University of Reunion
- National Center for Scientific Research
- Research Institute for Development
- French research institute for the exploitation of the sea
- University of New Caledonia
- Tropical Marine Ecology of the Pacific and Indian Oceans (ENTROPIE - UMR 9220)
- Mathematics, Computer Science and Systems Physics
- Ecological status and functioning of coral reefs
- Artificial Intelligence
Coral reefs are home to more than 30% of the biodiversity of the oceans and provide many essential ecosystem services on which nearly 850 million people depend (protection against swell, source of protein, tourism activities...). However, these ecosystems are particularly vulnerable to anthropogenic impacts and more than 50% of coral reefs could disappear by 2050.
Current methods of monitoring coral reefs, which are mainly based on visual assessments carried out by divers, are proving insufficient in a context of rapid changes impacting these ecosystems (high costs, biases linked to evaluators, sensitivity to variations in visibility, difficulties of implementation on isolated sites, impossible continuous monitoring...). It is therefore necessary to develop new methods of monitoring coral reefs that are less costly and make it possible to carry out standardized, non-intrusive monitoring on large spatio-temporal scales.
Eco-acoustics consists of studying all the sounds emanating from an ecosystem, i.e. the "soundscape", through the use of autonomous recorders. Coral reefs have a characteristic soundscape, which results from the many acoustically active organisms they support, but also from the sounds created by physical processes such as waves and by human activities such as boat passages.
The objective of the REEFPULSE project is to develop a coral reef monitoring tool based on eco-acoustics which will have many advantages:
- Possibility of carrying out studies in hazardous environments
- Ability to track isolated sites
- Possibility of doing follow-ups over long periods and/or on tight time steps
- Lower cost than current monitoring methods
- Non-intrusive evaluation based on objective criteria to avoid observer bias
- Obtaining a global classification of the state of health of reefs
- Assessment of anthropogenic and environmental pressures on coral reefs
The intensification of coral reef monitoring becomes crucial in order to decide which priority sites to conserve and monitor their evolution over time, detect the occurrence of ecological disturbances and evaluate the effectiveness of the management measures implemented.
Coral reef monitoring thus makes it possible to monitor the state of these ecosystems through standardized monitoring networks at the national and international levels. It also provides decision support information for actors involved in the conservation of marine biodiversity such as marine protected areas as well as for the realization of impact studies in the context of coastal development projects and coastal activities.
MARKETED TECHNOLOGY | Ecological status and functioning of coral reefs – Eco-acoustics – Artificial Intelligence