FN Archimer Export Format
PT J
TI Spatio-temporal dynamics and biogeochemical properties of green seawater discolorations caused by the marine dinoflagellate Lepidodinium chlorophorum along southern Brittany coast
BT 
AF Roux, Pauline
   Siano, Raffaele
   Souchu, Philippe
   Collin, Karine
   Schmitt, Anne
   Manach, Soazig
   Retho, Michael
   PIERRE DUPLESSIX, Olivier
   Marchand, Laetitia
   COLLIEC JOUAULT, Sylvia
   Pochic, Victor
   Zoffoli, Maria Laura
   Gernez, Pierre
   Schapira, Mathilde
AS 1:1;2:2;3:1;4:1;5:1;6:1;7:3;8:1;9:3;10:3;11:4;12:4;13:4;14:1;
FF 1:PDG-ODE-LITTORAL-LERMPL;2:PDG-ODE-DYNECO-PELAGOS;3:PDG-ODE-LITTORAL-LERMPL;4:PDG-ODE-LITTORAL-LERMPL;5:PDG-ODE-LITTORAL-LERMPL;6:PDG-ODE-LITTORAL-LERMPL;7:PDG-ODE-LITTORAL-LERMPL;8:PDG-ODE-LITTORAL-LERMPL;9:PDG-RBE-MASAE-LEMMMB;10:PDG-RBE-MASAE-LEMMMB;11:;12:;13:;14:PDG-ODE-LITTORAL-LERMPL;
C1 Ifremer, LITTORAL, F-44300, Nantes, France
   Ifremer, DYNECO, F-29280, Plouzané, France
   Ifremer, BRM, F-44300, Nantes, France
   Nantes Université, Institut des Substances et Organismes de la Mer, ISOMer, UR 2160, F-44000, Nantes, France
C2 IFREMER, FRANCE
   IFREMER, FRANCE
   IFREMER, FRANCE
   UNIV NANTES, FRANCE
SI NANTES
   BREST
   LORIENT
SE PDG-ODE-LITTORAL-LERMPL
   PDG-ODE-DYNECO-PELAGOS
   PDG-RBE-MASAE-LEMMMB
IN WOS Ifremer UPR
   copubli-france
   copubli-univ-france
IF 2.8
TC 6
UR https://archimer.ifremer.fr/doc/00779/89075/94636.pdf
LA English
DT Article
DE ;Lepidodinium chlorophorum;Coastal waters;HABs;TEP;Hypoxia;Remote sensing
AB Blooms of the marine dinoflagellate Lepidodinium chlorophorum cause green seawater discolorations affecting the recreational use and the tourism economy along southern Brittany (NE-Atlantic, France). Hypoxic conditions associated with phytoplankton biomass recycling are suspected to cause fauna mortalities. An in situ monitoring was performed in 2019 to characterise the seasonal variability of L. chlorophorum. This species was observed from May to November, with a maximum abundance in June–July. Specific bloom sampling demonstrated a dominance of L. chlorophorum within microphytoplankton, and documented its vertical distribution. Satellite observation was used to compute the surface extent of the bloom and to highlight the importance of small-scale temporal variability, with tidal currents being a primary driver of surface distribution of the bloom. Stratification contributed to promoting the bloom of L. chlorophorum. High concentrations of phosphate and ammonium, together with transparent exopolymer particles (TEP), were recorded within the bloom. Bacterial stimulation, leading to nutrient remineralisation or mucus facilitating mixotrophy, is suggested to sustain bloom development. Hence, TEP production might provide an ecological advantage for the dinoflagellate, conversely causing negative effects on the environment and biological resources through hypoxia. These first insights constitute a baseline for further studies in other ecosystems impacted by this species. 
PY 2022
PD SEP
SO Estuarine Coastal And Shelf Science
SN 0272-7714
PU Elsevier BV
VL 275
UT 000834623200001
DI 10.1016/j.ecss.2022.107950
ID 89075
ER

EF