@article{fdi:010081463, title = {{E}xploring benthic cyanobacterial diversity and co-occurring potentially harmful dinoflagellates in six islands of the {S}outh {P}acific}, author = {{B}iessy, {L}. and {W}ood, {S}. {A}. and {C}hinain, {M}. and {R}ou{\'e}, {M}{\'e}lanie and {S}mith, {K}. {F}.}, editor = {}, language = {{ENG}}, abstract = {{C}yanobacteria represent a potential risk to human health, as they can produce an array of toxic compounds. {P}roliferations of potentially toxic benthic marine cyanobacteria are predicted to increase in frequency and spread geographically with climate change and eutrophication, especially in tropical lagoons. {B}enthic cyanobacterial mats harbour many species of other bacteria and eukaryotic organisms, some of which have been linked to human poisonings after consumption of contaminated seafood. {M}etabarcoding was used to characterize the taxonomic diversity of 66 benthic cyanobacteria-dominated mats collected from six islands in three different countries of the {S}outh {P}acific: {F}rench {P}olynesia, the {C}ook {I}slands and {K}ingdom of {T}onga. {T}wenty-five potentially toxic cyanobacteria genera were recorded. {A}lthough core bacterial communities (excluding cyanobacteria) remained constant amongst mats, there were significant differences both within and between islands, even when the mats were dominated by the same cyanobacteria genera. {D}inoflagellata and {C}iliophora were the most dominant eukaryotes and seven potentially toxic genera of dinoflagellates co-occurred in the mats. {T}his is the first baseline survey to use metabarcoding to demonstrate the co-occurrence of potentially toxic marine cyanobacteria and dinoflagellates in the {P}acific. {T}he results highlight that further research is needed to evaluate the toxicity of the mats in these regions.}, keywords = {{B}enthic harmful algal blooms ; {H}igh-{T}hroughput {S}equencing ; {M}etabarcoding ; {L}agoons ; {T}oxicity ; {PACIFIQUE} {SUD} ; {POLYNESIE} {FRANCAISE} ; {COOK} {ILES} ; {TONGA} {ILES} ; {AITUTAKI} ; {RAROTONGA} ; {MOOREA} ; {NUKU} {HIVA} ; {TONGATAPU} ; {VAVA}'{U}}, booktitle = {}, journal = {{H}ydrobiologia}, volume = {848}, numero = {}, pages = {2815--2829}, ISSN = {0018-8158}, year = {2021}, DOI = {10.1007/s10750-021-04599-6}, URL = {https://www.documentation.ird.fr/hor/fdi:010081463}, }