FN Archimer Export Format
PT J
TI Annual Phytoplankton Primary Production Estimation in a Temperate Estuary by Coupling PAM and Carbon Incorporation Methods
BT 
AF MORELLE, Jerome
   SCHAPIRA, Mathilde
   ORVAIN, Francis
   RIOU, Philippe
   LOPEZ, Pascal Jean
   PIERRE-DUPLESSIX, Olivier
   RABILLER, Emilie
   MAHEUX, Frank
   SIMON, Benjamin
   CLAQUIN, Pascal
AS 1:1,2;2:3,4;3:1,2;4:3;5:2;6:3;7:3;8:3;9:3;10:1,2;
FF 1:;2:PDG-ODE-LITTORAL-LERMPL;3:;4:PDG-ODE;5:;6:PDG-ODE-LITTORAL-LERMPL;7:PDG-ODE-DYNECO-PELAGOS;8:PDG-ODE-LITTORAL-LERN;9:PDG-ODE-LITTORAL-LERN;10:;
C1 Univ Caen Normandie, Normandie Univ, F-14032 Caen, France.
   Univ Antilles, Univ Caen Normandie, Sorbonne Univ,IRD 207, Museum Natl Hist Nat,CNRS 7208,UMR Biol Organisme, F-14032 Caen, France.
   IFREMER, LER N, Ave Gen Gaulle, F-14520 Port En Bessin, France.
   IFREMER, LER MPL NT, Rue LIle Yeu,BP 21105, F-44301 Nantes 03, France.
C2 UNIV CAEN NORMANDIE, FRANCE
   MNHN, FRANCE
   IFREMER, FRANCE
   IFREMER, FRANCE
SI NANTES
   BREST
   PORT-EN-BESSIN
SE PDG-ODE-LITTORAL-LERMPL
   PDG-ODE
   PDG-ODE-DYNECO-PELAGOS
   PDG-ODE-LITTORAL-LERN
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 2.686
TC 11
UR https://archimer.ifremer.fr/doc/00429/54020/55470.pdf
LA English
DT Article
DE ;High frequency;Electron requirement for carbon fixation;Electron transport rate (ETR);Seine estuary
AB Phytoplankton primary production varies considerably with environmental parameters especially in dynamic ecosystems like estuaries. The aim of this study was to investigate short-term primary production along the salinity gradient of a temperate estuary over the course of 1 year. The combination of carbon incorporation and fluorescence methods enabled primary production estimation at short spatial and temporal scales. The electron requirement for carbon fixation was investigated in relation with physical-chemical parameters to accurately estimate primary production at high frequency. These results combined with the variability of the photic layer allowed the annual estimation of primary production along the estuary. Phytoplankton dynamics was closely related to salinity and turbidity gradients, which strongly influenced cells physiology and photoacclimatation. The number of electrons required to fix 1 mol of carbon (C) was ranged between 1.6 and 25 mol electron mol C−1 with a mean annual value of 8 ± 5 mol electron mol C−1. This optimum value suggests that in nutrient replete conditions like estuaries, alternative electron flows are low, while electrons transfer from photosystem II to carbon fixation is highly efficient. A statistical model was used to improve the estimation of primary production from electron transport rate as a function of significant environmental parameters. Based on this model, daily carbon production in the Seine estuary (France) was estimated by considering light and photic zone variability. A mean annual daily primary production of 0.12 ± 0.18 g C m−2 day−1 with a maximum of 1.18 g C m−2 day−1 in summer was estimated which lead to an annual mean of 64.75 g C m−2 year−1. This approach should be applied more frequently in dynamic ecosystems such as estuaries or coastal waters to accurately estimate primary production in those valuable ecosystems. 
PY 2018
PD JUN
SO Estuaries And Coasts
SN 1559-2723
PU Springer
VL 41
IS 5
UT 000433916300009
BP 1337
EP 1355
DI 10.1007/s12237-018-0369-8
ID 54020
ER

EF