FN Archimer Export Format
PT J
TI Dynamics of phytoplankton diversity structure and primary productivity in the English Channel
BT 
AF NAPOLEON, Camille
   FIANT, Liliane
   RAIMBAULT, Virginie
   RIOU, Philippe
   CLAQUIN, Pascal
AS 1:1,2,3;2:3;3:1,2;4:3;5:1,2;
FF 1:PDG-ODE-LITTORAL-LERN;2:;3:;4:PDG-ODE-LITTORAL-LERN;5:;
C1 Univ Caen Basse Normandie, UMR BOREA, F-14032 Caen, France.
   UCBN, UPMC, MNHN, UMR BOREA,CNRS 7208,IRD 207, F-14032 Caen, France.
   IFREMER, Lab Environm Ressources Normandie, F-14520 Port En Bessin, France.
C2 UNIV CAEN, FRANCE
   UNIV CAEN, FRANCE
   IFREMER, FRANCE
SI PORT-EN-BESSIN
   AUTRE
SE PDG-ODE-LITTORAL-LERN
   AUTRE
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 2.619
TC 16
UR https://archimer.ifremer.fr/doc/00198/30964/29336.pdf
LA English
DT Article
DE ;Phytoplankton diversity;Primary production;Productivity;English Channel
AB The dynamics of the phytoplankton assemblage, the physical, chemical and biological parameters, and primary productivity and production were monitored in the central English Channel along a transect between Ouistreham and Portsmouth from January to December 2010. The spatial patterns of the phytoplankton assemblage were controlled by the hydrological characteristics of the water masses, and the annual structure of the phytoplankton assemblage was characteristic of the central English Channel and was controlled by seasonality. The spring bloom was dominated by a single species, Chaetoceros socialis, and associated with low microphytoplankton evenness and Shannon-Wiener indices, whereas the evenness index was high from late spring to winter and associated with the proliferation of pico- and nanophytoplankton cells. We identified 2 species responsible for harmful algal blooms, Phaeocystis globosa, which dominated the community in the northern part of the Seine Bay in May, and Lepidodinium chlorophorum, which dominated the community near the French coast in September. We examined the relationship between microphytoplankton diversity and maximum primary production and productivity. We found a negative parabolic relationship between the diversity indices (evenness and Shannon-Wiener) and maximum primary production, and a positive parabolic relationship between the number of taxa (richness) and maximum primary production. However, we found no relationship between maximum productivity and the evenness or richness indices. High levels of productivity were measured during the increasing abundance of pico and nanophytoplankton cells, highlighting the importance of taking the dominant functional group into account, rather than the degree of diversity, when explaining the level of productivity.
PY 2014
SO Marine Ecology Progress Series
SN 0171-8630
PU Inter-research
VL 505
UT 000336913000005
BP 49
EP 64
DI 10.3354/meps10772
ID 30964
ER

EF