My research aims to investigate vocal communication in a serranid fish: the dusky grouper (Epinephelus marginatus), an emblematic Mediterranean species, by studying calls that are produced during the spawning season.
Little is known about the different sounds produced during this period in terms of their acoustic characteristics, biological functions and production mechanism. The main objectives are: 1) to find the acoustic signature of this species, 2) to study the changes of acoustic features during the spawning season, and 3) to study the sound production mechanisms.
Since 2004, E. marginatus has been classified as “endangered” in the IUCN red list (www.iucnredlist.org). The knowledge of the acoustic activity of the dusky grouper may help to better understand their social organisation and to determine accurately their reproduction period, from the beginning of the courtship to the mating activities.