A bio-logging dataset on the diving behaviours of juvenile sea turtles from the southwestern Indian Ocean.

In recent decades, international and national regulations have contributed to slowing population declines and promoting the stabilization and recovery of marine turtle populations. Numerous studies have highlighted the intricate interconnections between sea turtles, particularly juveniles, and their surrounding ecosystems, underscoring the critical importance of long-term monitoring in marine conservation strategies. Aligned with conservation efforts in the region, this work provides a high-resolution dataset on the diving behavior of juvenile green and hawksbill turtles from four sites: Reunion Island, Mayotte, Europa Island, and Aldabra Atoll. Between 2021 and 2022, we collected over 100,000 records from 37 juveniles using open-source bio-loggers using LoRaWAN technology. The dataset, openly available on SEANOE, includes raw and processed data following FAIR principles. We believe that it offers a supporting resource for studying juvenile sea turtles and demonstrates the potential of open-source technologies for biodiversity monitoring.