OBJECTIVES
The main objective is to describe the acoustic diversity associated to aFADs. This will imply the recordings of many different fish species and the study of underwater soundscapes around aFADs to provide eco-acoustic indicators of biodiversity.
METHODOLOGIES
The project involves deploying automatic hydrophones to record underwater sounds near aFADs over several days to evaluate pelagic acoustic diversity and how it may vary in time and space. Fish species found near aFADs will be captured with fishers' help and placed in tanks equipped with hydrophones to record their sounds in captivity. Morphological investigations will also be performed to identify sound production mechanisms.
EXPECTED OUTPUT
- Create a sound library to support diversity analysis.
- Identification of new vocal species with sound production mechanisms.
- Description of spatio-temporal variations of soundscapes.
- Measure of eco-acoustic indicators of biodiversity.
