Of the corals that died

Coral reefs are dying

Coral reefs represent 30% of oceans' biodiversity while covering less than 0.1% of their surface. The disturbances they suffer (impacts of climate change, direct anthropogenic impacts) are such that 90% of these ecosystems could have disappeared by 2050. Beyond their extraordinary biodiversity, their services to 850 million people are threatened. These services (e.g., coastal protection, food resources, income from tourism, carbon sequestration) are estimated at more than 10 billion US dollars per year worldwide.

Until recently, coral reef monitoring methods were mainly based on visual cues (e.g., counts, imagery). In contrast, Reef Pulse leverages the richness of underwater soundscapes to develop new solutions to solve the current crises which coral reefs are facing. Ecosystem evaluation from another angle is complementary and offers a vast innovation potential.

Installation of a tripod by a diver

Passive acoustic monitoring

Continuous assessment of coral reefs' state and functioning

We record and analyse coral reef soundscapes to provide our clients with crucial information

  • Quantifying the activity of key species or groups of species
  • Evaluating the biomass of fishes within each trophic group
  • Quantifying noise pollution
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You want to use our acoustics and AI-powered monitoring solution?

Contact us
Notre vision

Sound as a guide for life

Coral reef restoration via acoustic enrichment

In order to help rebuild deteriorated underwater ecosystems, we use underwater speakers to broadcast soundscapes recorded from healthy coral reefs. Deployed during key moments such as the coral spawning season, our systems attract larvae and allows coral reefs to recover in strategic locations.

  • Low labour requirements
  • Large coverage area up to 400m²
  • Attracts corals, fish, and invertebrates
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You wish to plan a restoration project using our technology?

Contact us

Sound extracts from our missions

If you'd like to be granted the permission to use this content, please contact us.
More sound extracts can be found on our SoundCloud page.

Our projects ↗

🇬🇵 Guadeloupe - SONOKAR

Passive acoustic monitoring of coral reefs around Guadeloupe Island from 2023 to 2024 in collaboration with the Office de l'Eau de Guadeloupe.

🇧🇱 Saint-Barthélemy - BARTH

Acoustic monitoring of Saint-Barthelemy's coral reefs for one year, with the Territorial Environment Agency.

🇹🇫 Europa Island - CORCOPA

Acoustic comparison of Europa Island's coral reef, and installation of an autonomous station for long term monitoring.

🇷🇪 Reunion Island - SAGAP

Continuous monitoring of Reunion Island's outer reef slopes spanning two years.

🇳🇨 New Caledonia - AIPANEMA

Monitoring of New Caledonia's recently expanded marine reserves via 11 sites over the course of two years.

🇾🇹 Mayotte - SONOMAY

Passive acoustic monitoring of coral reefs around Mayotte Island from 2022 to 2024 in collaboration with the OFB.

🇹🇫 Europa Island - EUROPAM

Analysis of the evolution of Europa's coral reef soundscape between 2018 and 2024.

🇷🇪 Reunion Island - REACT

Coral reef restoration in Reunion Island by emitting ambient sounds recorded in healthy reefs.

🇷🇪 Reunion Island - SONORUN

Ecoacoustic reference state of coral reefs around Reunion Island in 2022.