FN Archimer Export Format PT J TI Tectus niloticus (Tegulidae, Gastropod) as a Novel Vector of Ciguatera Poisoning: Detection of Pacific Ciguatoxins in Toxic Samples from Nuku Hiva Island (French Polynesia) BT AF DARIUS, Helene Taiana ROUE, Melanie SIBAT, Manoella VIALLON, Jerome GATTI, Clemence Mahana Iti VANDERSEA, Mark W. TESTER, Patricia A. LITAKER, R. Wayne AMZIL, Zouher HESS, Philipp CHINAIN, Mireille AS 1:1;2:2;3:3;4:1;5:1;6:4;7:5;8:4;9:3;10:3;11:1; FF 1:;2:;3:PDG-ODE-DYNECO-PHYC;4:;5:;6:;7:;8:;9:PDG-ODE-DYNECO-PHYC;10:PDG-ODE-DYNECO-PHYC;11:; C1 ILM, Lab Tox Microalgae, EIO, UMR 241, POB 30, F-98713 Tahiti, French Polynesi, France. IRD, UMR 241, EIO, POB 529, F-98713 Tahiti, French Polynesi, France. IFREMER, Phycotoxins Lab, F-44311 Nantes, France. NOAA, Natl Ocean Serv, Ctr Coastal Ocean Sci, Beaufort Lab, Beaufort, NC 28516 USA. Ocean Tester LLC, Beaufort, NC 28516 USA. C2 INST LOUIS MALARDE, FRANCE IRD, FRANCE IFREMER, FRANCE NOAA, USA OCEAN TESTER LLC, USA SI NANTES SE PDG-ODE-DYNECO-PHYC UM EIO IN WOS Ifremer jusqu'en 2018 DOAJ copubli-france copubli-p187 copubli-int-hors-europe IF 3.895 TC 48 UR https://archimer.ifremer.fr/doc/00426/53798/54719.pdf LA English DT Article DE ;ciguatera poisoning;ciguatoxins;Tectus niloticus;gastropods;Gambierdiscus polynesiensis;qPCR assays;CBA-N2a;LC-MS;MS AB Ciguatera fish poisoning (CFP) is a foodborne disease caused by the consumption of seafood (fish and marine invertebrates) contaminated with ciguatoxins (CTXs) produced by dinoflagellates in the genus Gambierdiscus. The report of a CFP-like mass-poisoning outbreak following the consumption of Tectus niloticus (Tegulidae, Gastropod) from Anaho Bay on Nuku Hiva Island (Marquesas archipelago, French Polynesia) prompted field investigations to assess the presence of CTXs in T. niloticus. Samples were collected from Anaho Bay, 1, 6 and 28 months after this poisoning outbreak, as well as in Taiohae and Taipivai bays. Toxicity analysis using the neuroblastoma cell-based assay (CBA-N2a) detected the presence of CTXs only in Anaho Bay T. niloticus samples. This is consistent with qPCR results on window screen samples indicating the presence of Gambierdiscus communities dominated by the species G. polynesiensis in Anaho Bay. Liquid chromatography-tandem mass spectrometry (LC-MS/MS) analyses revealed that P-CTX-3B was the major congener, followed by P-CTX-3C, P-CTX-4A and P-CTX-4B in toxic samples. Between July 2014 and November 2016, toxin content in T. niloticus progressively decreased, but was consistently above the safety limit recommended for human consumption. This study confirms for the first time T. niloticus as a novel vector of CFP in French Polynesia. PY 2018 PD JAN SO Toxins SN 2072-6651 PU Mdpi Ag VL 10 IS 1 UT 000424096500002 DI 10.3390/toxins10010002 ID 53798 ER EF