REBIOMA-3D : 3D structure of reefs, pilot study, Mayotte
Créocéan
3D structure of reefs, pilot study for improving Mayotte’s reef biodiversity management (Structure 3D des RÉcifs, étude pilote pour l’amélioration de gestion de la BIOdiversité récifale de MAyotte)
Coral reefs represent emblematic ecosystems both in terms of local natural heritage and throughout the Indian Ocean.
Natural disruptions and various anthropogenic pressures (tourist traffic, coastal development, etc.) endanger the state of these ecosystems, their biodiversity and the goods and services they provide to the local population.
The most precise reef monitoring program in Mayotte (GCRMN) uses standard descriptors, but does not consider the reefs three-dimensional nature. The application of underwater photogrammetry and the calculation of 3D descriptors will thus make it possible to complete the assessment of the reefs’ health state.
Given the high precision of the models and the 3D analysis, this technique is the most suitable for quantifying possible impacts to the reef structure and proves to be the most relevant for monitoring areas that will be disturbed by coastal development projects, but also due to tourist activities.
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