@article{fdi:010066739, title = {{C}hemical multi-contamination drives benthic prokaryotic diversity in the anthropized {T}oulon {B}ay}, author = {{M}isson, {B}. and {G}arnier, {C}. and {L}auga, {B}. and {D}ang, {D}. {H}. and {G}higlione, {J}. {F}. and {M}ullot, {J}. {U}. and {D}uran, {R}. and {P}ringault, {O}livier}, editor = {}, language = {{ENG}}, abstract = {{I}nvestigating the impact of human activities on marine coastal ecosystems remains difficult because of the co-occurrence of numerous natural and human-induced gradients. {O}ur aims were (i) to evaluate the links between the chemical environment as a whole and microbial diversity in the benthic compartment, and (ii) to compare the contributions of anthropogenic and natural chemical gradients to microbial diversity shifts. {W}e studied surface sediments from 54 sampling sites in the semi-enclosed {T}oulon {B}ay ({NW} {M}editerranean) exposed to high anthropogenic pressure. {P}reviously published chemical data were completed by new measurements, resulting in an in depth geochemical characterization by 29 representative environmental variables. {B}acterial and archaeal diversity was assessed by terminal restriction fragment length polymorphism profiling on a selection of samples distributed along chemical gradients. {M}ultivariate statistical analyses explained from 45% to 80% of the spatial variation in microbial diversity, considering only the chemical variables. {A} selection of trace metals of anthropogenic origin appeared to be strong structural factors for both bacterial and archaeal communities. {B}acterial terminal restriction fragment ({T}-{RF}) richness correlated strongly with both anthropogenic and natural chemical gradients, whereas archaeal {T}-{RF} richness demonstrated fewer links with chemical variables. {N}o significant decrease in diversity was evidenced in relation to chemical contamination, suggesting a high adaptive potential of benthic microbial communities in {T}oulon {B}ay.}, keywords = {{M}icrobial ecotoxicology ; {M}ulti-contamination ; {P}rokaryotic diversity ; {M}arine sediment ; {MEDITERRANNEE} ; {FRANCE}}, booktitle = {}, journal = {{S}cience of the {T}otal {E}nvironment}, volume = {556}, numero = {}, pages = {319--329}, ISSN = {0048-9697}, year = {2016}, DOI = {10.1016/j.scitotenv.2016.02.038}, URL = {https://www.documentation.ird.fr/hor/fdi:010066739}, }