@article{fdi:010077064, title = {{T}he use of citizen science for marine biodiversity surveys : from species identification to ecologically relevant observations}, author = {{C}hangeux, {T}homas and {B}lazy, {C}. and {R}uitton, {S}.}, editor = {}, language = {{ENG}}, abstract = {{T}he current development of citizen science is an opportunity for marine biodiversity surveys to use recreational {SCUBA} diver data. {I}n {F}rance, the {DORIS} project is extensively used for marine species identification, while many initiatives offer volunteer divers the means to record their observations. {T}hanks to the scientific synergy generated by the flagship project of the artificial reefs ({AR}s) of {P}rado {B}ay, located off the coast of {M}arseille ({F}rance), a multi-annual biodiversity survey was performed by a team of recreational divers certified by the {F}rench {F}ederation for {S}ubmarine {S}ports and {E}ducation ({FFESSM}). {T}he analysis of their observations with other citizen science data showed a good taxonomic coverage for fishes and mollusks. {T}hese observations also allowed (1) to follow {AR} colonization over the study period, with the increasing number of taxa and the growing occurrence of large fishes, and (2) to characterize taxa distribution between the different {AR} types, revealing the inefficiency of one type of {AR} which failed to provide the results expected from its design. {T}his example demonstrates that the transition from species identification to ecologically relevant observation is perfectly feasible using volunteer naturalist {SCUBA} divers, on condition that both the protocols and the data are validated by professional scientists.}, keywords = {{C}itizen science ; {SCUBA} divers ; {U}nderwater monitoring ; {A}rtificial reef ; {F}ish ; {M}acro-benthos ; {M}editerranean ; {MEDITERRANEE}}, booktitle = {}, journal = {{H}ydrobiologia}, volume = {847}, numero = {1}, pages = {27--43}, ISSN = {0018-8158}, year = {2020}, DOI = {10.1007/s10750-019-04070-7}, URL = {https://www.documentation.ird.fr/hor/fdi:010077064}, }