@article{fdi:010078821, title = {{A}ssessment of {C}iguatera and other phycotoxin-related risks in {A}naho {B}ay ({N}uku {H}iva {I}sland, {F}rench {P}olynesia) : molecular, toxicological, and chemical analyses of passive samplers}, author = {{R}ou{\'e}, {M}{\'e}lanie and {S}mith, {K}.{F}. and {S}ibat, {M}. and {V}iallon, {J}. and {H}enry, {K}. and {U}ng, {A}. and {B}iessy, {L}. and {H}ess, {P}. and {D}arius, {H}.{T}. and {C}hinain, {M}.}, editor = {}, language = {{ENG}}, abstract = {{C}iguatera poisoning is a foodborne illness caused by the consumption of seafood contaminated with ciguatoxins ({CTX}s) produced by dinoflagellates from the genera {G}ambierdiscus and {F}ukuyoa. {T}he suitability of {S}olid {P}hase {A}dsorption {T}oxin {T}racking ({SPATT}) technology for the monitoring of dissolved {CTX}s in the marine environment has recently been demonstrated. {T}o refine the use of this passive monitoring tool in ciguateric areas, the effects of deployment time and sampler format on the adsorption of {CTX}s by {HP}20 resin were assessed in {A}naho {B}ay ({N}uku {H}iva {I}sland, {F}rench {P}olynesia), a well-known ciguatera hotspot. {T}oxicity data assessed by means of the mouse neuroblastoma cell-based assay ({CBA}-{N}2a) showed that a 24 h deployment of 2.5 g of resin allowed concentrating quantifiable amounts of {CTX}s on {SPATT} samplers. {T}he {CTX} levels varied with increasing deployment time, resin load, and surface area. {I}n addition to {CTX}s, okadaic acid ({OA}) and dinophysistoxin-1 ({DTX}1) were also detected in {SPATT} extracts using liquid chromatographycoupled to tandem mass spectrometry ({LC}-{MS}/{MS}), consistent with the presence of {G}ambierdiscus and {P}rorocentrum species in the environment, as assessed by quantitative polymerase chain reaction (q{PCR}) and high-throughput sequencing ({HTS}) metabarcoding analyses conducted on passive window screen ({WS}) artificial substrate samples. {A}lthough these preliminary findings await further confirmation in follow-up studies, they highlight the usefulness of {SPATT} samplers in the routine surveillance of {CP}risk on a temporal scale, and the monitoring of other phycotoxin-related risks in ciguatera-prone areas.}, keywords = {{POLYNESIE} {FRANCAISE} ; {PACIFIQUE} ; {NUKU} {HIVA} {ILE}}, booktitle = {}, journal = {{T}oxins}, volume = {12}, numero = {5}, pages = {art. 321 [18 ]}, ISSN = {2072-6651}, year = {2020}, DOI = {10.3390/toxins12050321}, URL = {https://www.documentation.ird.fr/hor/fdi:010078821}, }