FN Archimer Export Format
PT J
TI Development of harmful algal blooms species responsible for lipophilic and amnesic shellfish poisoning intoxications in southwestern Mediterranean coastal waters
BT 
AF Aboualaalaa, Hicham
   L'Bachir El kbiach, Mohammed
   Rijal Leblad, Benlahcen
   Hervé, Fabienne
   Hormat-Allah, Amal
   BAUDY, Lauriane
   Ennaskhi, Ismail
   Hammi, Ikram
   Ibghi, Mustapha
   Elmortaji, Hind
   Abadie, Eric
   ROLLAND, Jean-Luc
   Amzil, Zouher
   Laabir, Mohamed
AS 1:1,2,5;2:1;3:2;4:4;5:2;6:4;7:2;8:2;9:1,2,5;10:3;11:6;12:6;13:4;14:5;
FF 1:;2:;3:;4:PDG-ODE-PHYTOX-METALG;5:;6:;7:;8:;9:;10:;11:PDG-ODE-LITTORAL-LERLR;12:PDG-RBE-MARBEC-LAAAS;13:PDG-ODE-PHYTOX-METALG;14:;
C1 Equipe de Biotechnologie Végétale, Faculty of Sciences, Abdelmalek Essaadi University Tetouan, Morocco
   INRH (Moroccan Institute of Fisheries Research), Marine Environment Monitoring Laboratory, Tangier, Morocco
   INRH (Moroccan Institute of Fisheries Research), Marine Biotoxins Laboratory, Casablanca, Morocco
   Ifremer (French Research Institute for Exploitation of the Sea), PHYTOX, METALG Laboratory, Nantes, France
   Université Montpellier, MARBEC CNRS, IRD, Ifremer, Montpellier, France
   MARBEC, Université Montpellier, CNRS, Ifremer, IRD, Sète, France
C2 UNIV ABDELMALEK ESSAADI, MOROCCO
   INRH, MOROCCO
   INRH, MOROCCO
   IFREMER, FRANCE
   UNIV MONTPELLIER, FRANCE
   IFREMER, FRANCE
SI NANTES
   SETE
SE PDG-ODE-PHYTOX-METALG
   PDG-ODE-LITTORAL-LERLR
   PDG-RBE-MARBEC-LAAAS
UM MARBEC
IN WOS Ifremer UPR
   WOS Ifremer UMR
   WOS Cotutelle UMR
   copubli-france
   copubli-univ-france
   copubli-int-hors-europe
   copubli-sud
IF 2.8
TC 5
UR https://archimer.ifremer.fr/doc/00793/90497/96064.pdf
LA English
DT Article
DE ;Southwestern mediterranean;Lipophilic and amnesic toxins;Environmental factors;HABs;Mollusk ?s contamination;LC-MS/MS analyses
AB Mediterranean waters have undergone environmental changes during the last decades leading to various modifications of the structure of phytoplankton populations, especially Harmful Algal Blooms (HABs) species. Monitoring of the potentially toxic phytoplankton species was carried out biweekly in the western Mediterranean coast of Morocco from March 2018 to March 2019. Lipophilic Shellfish Toxins (LSTs) using LC-MS/MS and Domoic Acid (DA) using HPLC-UV were measured in the exploited mollusks, the cockle Acanthocardia tuberculata and the smooth clam Callista chione. We also determined the prevailing environmental factors in four surveyed sites (M'diq bay, Martil, Kaa Asras, and Djawn) selected to cover a variety of coastal ecosystems. Results showed that Pseudo-nitzschia spp. A DA producer species, was abundant with a pick of 50 × 103 cells l−1 on October 2018 in Djawn. Dinophysis caudata was the dominate Dinophysis species and showed a maximum density of 2200 cells l−1 on July in Djawn. Prorocentrum lima, an epibenthic dinoflagellate, appeared rarely in the water column with densities <80 cells l−1. Gonyaulax spinifera and Protoceratium reticulatum were found occasionally with a maximum density of 160 cells l−1. Karenia selliformis was detected only five times (<80 cells l−1) throughout the survey period. LC-MS/MS analyses revealed the presence of OA/DTX3, PTX-2, PTX-2 sa, and PTX-2 sa epi in the cockle at concentrations of up to 44.81 (OA/DTX-3+PTXs) ng g−1 meat. GYM-A was detected in the clam at concentrations of up to 4.22 ng g−1 meat. For the first time, AZAs and YTXs were detected in the southwestern Mediterranean with maximum values of 2.49 and 10.93 ng g−1 meat of cockle, respectively. DA was detected in moderate concentrations not exceeding 5.65 μg g−1 in both mollusks. Results showed that the observed toxic algae in the water column were responsible from the analysed toxins in the mollusks. It is likely that the southwestern Mediterranean waters could see the development of emergent species producing potent toxins (YTXs, AZAs, GYM-A). These dinoflagellates have to be isolated, ribotyped, and their toxin profiles determined. 
PY 2022
PD NOV
SO Toxicon
SN 0041-0101
PU Elsevier BV
VL 219
UT 000861751800002
DI 10.1016/j.toxicon.2022.09.002
ID 90497
ER

EF