FN Archimer Export Format
PT J
TI Wind and temperature controls on Alexandrium blooms (2000-2007) in Thau lagoon (Western Mediterranean)
BT 
AF LAANAIA, Nabil
   VAQUER, Andre
   FIANDRINO, Annie
   GENOVESI, Benjamin
   PASTOUREAUD, Annie
   CECCHI, Philippe
   COLLOS, Yves
AS 1:1;2:2;3:1;4:2;5:1;6:3;7:2;
FF 1:;2:;3:PDG-ODE-LITTORAL-LERLR;4:;5:PDG-ODE-LER-LERLR;6:;7:;
C1 IFREMER, Lab LER LR, F-34203 Sete, France.
   Univ Montpellier 2, UMR 5119, CNRS IRD UM2, F-34095 Montpellier 5, France.
   IRD G EAU, Ouagadougou 01, Burkina Faso.
C2 IFREMER, FRANCE
   UNIV MONTPELLIER, FRANCE
   IRD, BURKINA FASO
SI SETE
   MONTPELLIER
SE Ecosym
   PDG-ODE-LITTORAL-LERLR
   PDG-ODE-LER-LERLR
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-p187
   copubli-univ-france
   copubli-int-hors-europe
   copubli-sud
IF 3.339
TC 28
UR https://archimer.ifremer.fr/doc/00157/26790/24936.pdf
LA English
DT Article
DE ;Alexandrium catenella/tamarense;Wind stress;SST;Thau lagoon;Mediterranean
AB Since 1998, blooms of Alexandrium catenella/tamarense in the lagoon of Thau developed regularly each autumn, reaching a maximum of several millions cells per liter in 2004. By contrast, spring blooms occurred only twice (in 2000 and 2007). During these periods, sea surface temperatures (SST) and the wind patterns appear to impact the bloom occurrences much more than the apparent limiting resources such as inorganic nutrients. The analysis of SST and wind from April to June and September to November (from 2000 to 2007) indicates first that there has to be an initial wind stress in order to resuspend the cysts buried in the sediment. Blooms then occur after a period of weak winds (<4 m s(-1)) and of stable SST close to 20 degrees C (+/- 2 degrees C). Those conditions appear to be most favorable for germination of Alexandrium cysts and its ensuing vegetative growth. This period of stability (a few days to a few weeks) allows the development of the inoculum from the cyst's germination, its cohesion because of reduced hydrodynamics, and development of vegetative cells that are sensitive to agitation. Strong winds during 1-2 day periods can interrupt the bloom dynamics by dispersing (advection due to southeasterly winds) and/or eliminating (turbulence due to northwesterly winds) the vegetative cells. In the spring, under the same conditions of optimal SST, strong wind episodes dominate and those, as well as biological factors very likely lead to a lower occurrence of blooms relative to the fall situation. (C) 2013 Elsevier B.V. All rights reserved.
PY 2013
PD AUG
SO Harmful Algae
SN 1568-9883
PU Elsevier Science Bv
VL 28
UT 000323866800004
BP 31
EP 36
DI 10.1016/j.hal.2013.05.016
ID 26790
ER

EF