FN Archimer Export Format
PT J
TI Rapid light curves (RLC) or non-sequential steady-state light curves (N-SSLC): which fluorescence-based light response curve methodology robustly characterizes phytoplankton photosynthetic activity and acclimation status?
BT 
AF HOULIEZ, Emilie
   LEFEBVRE, Sebastien
   LIZON, Fabrice
   SCHMITT, Francois G.
AS 1:1,2;2:1,3;3:1;4:1;
FF 1:;2:PDG-RBE-HMMN-RHBL;3:;4:;
C1 Univ Lille 1, Univ Littoral Cote dOpale, CNRS, UMR 8187,LOG, F-62930 Wimereux, France.
   Univ La Rochelle, ILE, CNRS, UMR LIENSs 6250, 2 Rue Olympe de Gouges, F-17042 La Rochelle, France.
   IFREMER, Lab Ressources Halieut, 150 Quai Gambetta,BP 699, F-62321 Boulogne Sur Mer, France.
C2 UNIV LILLE, FRANCE
   UNIV LA ROCHELLE, FRANCE
   IFREMER, FRANCE
SI BOULOGNE
SE PDG-RBE-HMMN-RHBL
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 2.215
TC 10
UR https://archimer.ifremer.fr/doc/00395/50596/51484.pdf
LA English
DT Article
AB This study is the first in situ work comparing rapid light curves (RLC) and non-sequential steady-state light curves (N-SSLC) in their efficiency to characterize phytoplankton photosynthetic activity and acclimation status. Measurements were carried out at two time scales (daily and annual) using the Pulse Amplitude Modulated fluorometry on samples taken in the coastal waters of a macrotidal ecosystem (the Strait of Dover, eastern English Channel). RLC and N-SSLC were compared under a wide range of environmental conditions and phytoplankton composition in order to define the best methodology to accurately capture short and long-term adjustments in the functioning of the photosynthetic apparatus. The relationships between the photosynthetic parameters extracted from RLC and N-SSLC were also studied to evaluate the possibility to use RLC to predict N-SSLC photosynthetic parameters and thus obtaining the acclimation status at steady state. At daily scale, the maximum electron transport rate and light saturation coefficient resulting from RLC (respectively, ETRm_RLC and Ek_RLC) were found to follow more closely short-term environmental light variations than ETRm and Ek resulting from N-SSLC (ETRm_N-SSLC and Ek_N-SSLC) did. RLC were thus able to detect rapid changes in photosynthetic activity that would have been overlooked with N-SSLC measurements. At annual scale, few differences were found between RLC and N-SSLC. Variations of ETRm and α derived from RLC and N-SSLC were very similar but absolute values were lower for RLC measurements. Because, at daily scale, RLC better capture the short-term changes in photosynthetic activity than N-SSLC do, using RLC to predict N-SSLC photosynthetic parameters and getting information about steady-state acclimation status is not possible at this time scale. However, this can be done at seasonal scale. 
PY 2017
PD AUG
SO Marine Biology
SN 0025-3162
PU Springer Heidelberg
VL 164
IS 8
UT 000410485700003
DI 10.1007/s00227-017-3208-8
ID 50596
ER

EF