FN Archimer Export Format PT J TI A taxonomical study of benthic Prorocentrum species (Prorocentrales, Dinophyceae) from Anse Dufour (Martinique Island, eastern Caribbean Sea) BT AF Chomérat, Nicolas Bilien, Gwenael Zentz, Frédéric AS 1:1;2:1;3:2; FF 1:PDG-ODE-LITTORAL-LERBO;2:PDG-ODE-LITTORAL-LERBO;3:; C1 IFREMER, ODE/LER Bretagne Occidentale, Station de Biologie Marine, Place de la Croix, F-29900 Concarneau, France. Université de Bretagne Occidentale, Station de Biologie Marine, Place de la Croix, F-29900 Concarneau, France C2 IFREMER, FRANCE UBO, FRANCE SI CONCARNEAU SE PDG-ODE-LITTORAL-LERBO IN WOS Ifremer UPR copubli-france copubli-univ-france IF 1.487 TC 21 UR https://archimer.ifremer.fr/doc/00469/58075/60483.pdf LA English DT Article DE ;Caribbean;Dinoflagellates;LSU rDNA;Phylogeny;Prorocentrum;Taxonomy AB About 30 benthic Prorocentrum species have been described, some of which producing okadaic acid and derivatives involved in diarrhetic shellfish poisoning. The western Caribbean has been extensively studied for benthic dinoflagellates associated with ciguatera, and fifteen Prorocentrum species were described from mangroves and coral reefs of Belize. In contrast, no study reported the diversity of this genus in the Eastern Caribbean, especially in the Lesser Antilles. This study adds to the biodiversity knowledge in Martinique Island by investigating one site of the Caribbean coast from 2010 to 2017. Sediment samples were collected each year in March and studied taxonomically. Identification was realized morphologically by scanning electron microscopy, while the partial large subunit (LSU) ribosomal DNA was sequenced for 42 isolated specimens (single-cells) and one strain in culture. A molecular phylogenetic analysis revealed 11 OTUs from Martinique, identified morphologically as P. concavum, P. cf. foraminosum, P. cf. tropicale, P. lima, P. hoffmannianum, P. cf. norrisianum, P. glenanicum, P. panamense, P. cf. sculptile, P. cf. fukuyoi, and P. rhathymum. Two morphospecies were also identified (P. cf. maculosum and P. cf. ruetzlerianum) but with no sequence obtained. Some species like P. cf. tropicale and P. cf. norrisinamum are sequenced for the first time. Our analysis reveals probable former misidentifications of P. cf. foraminosum and P. cf. sculptile since the sequences from Martinique form new clades and their geographical origin are closer from the type locality than any other previous studies. Further studies and sequences from the type localities are yet required to assess identifications. PY 2019 PD JUL SO Marine Biodiversity SN 1867-1616 PU Springer Nature America, Inc VL 49 IS 3 UT 000469762000020 BP 1299 EP 1319 DI 10.1007/s12526-018-0913-6 ID 58075 ER EF