FN Archimer Export Format PT J TI Variability patterns of microphytoplankton communities along the French coasts BT AF GAILHARD, Isabelle GROS, Philippe DURBEC, JP BELIAEFF, Benoit BELIN, Catherine NEZAN, Elisabeth LASSUS, Patrick AS 1:;2:;3:;4:;5:;6:;7:; FF 1:PDG-DEL-AO;2:PDG-DRV;3:;4:PDG-DEL-AO;5:PDG-DEL-MP;6:PDG-DEL-CC;7:PDG-DEL-MP; C1 IFREMER, F-29280 Plouzane, France. Fac Sci Luminy, COM, F-13288 Marseille 09, France. IFREMER, F-44311 Nantes 3, France. IFREMER, F-29187 Concarneau, France. C2 IFREMER, FRANCE UNIV AIX MARSEILLE, FRANCE IFREMER, FRANCE IFREMER, FRANCE SI BREST NANTES CONCARNEAU SE PDG-DEL-AO PDG-DRV PDG-DEL-MP PDG-DEL-CC IN WOS Ifremer jusqu'en 2018 IF 2.222 TC 34 UR https://archimer.ifremer.fr/doc/00000/10033/7596.pdf LA English DT Article DE ;microphytoplankton;French coast;geographical structure;temporal variability;RV coefficient;multidimensional scaling AB Microalgal populations along French coasts (English Channel, Bay of Biscay and Mediterranean Sea) have been sampled twice a month since 1987 within the context of the French Phytoplankton and Phycotoxin Monitoring Network (REPHY). This study used these data to characterize the large-scale geographical structures of microphytoplankton communities and to determine whether 'homogeneous' geographical areas exist in which microalgal populations display similar temporal variability schemes. Once the temporal variability component shared by all sampled coastal sites was identified, the 'residual' site-specific component was analyzed. Multivariate ordination methods were used to determine seasonal and inter-annual variability. The expected-temporal pattern common to all sites was identified and the seasonal cycle of the most frequently observed phytoplankton communities along French coasts was described. The between-site analysis, using multitable comparison methods (RV-coefficient and multidimensional scaling), allowed the identification of 3 large areas (western English Channel, Bay of Biscay and Mediterranean Sea) according to the temporal variability patterns of microphytoplankton populations. The results, despite the coastal locations of REPHY sampling sites, indicate that the hydrodynamic characteristics of the different areas play a major role in the geographical structure of microalgal populations in French coastal waters. PY 2002 SO Marine Ecology Progress Series SN 0171-8630 PU Inter-research VL 242 UT 000179463800004 BP 39 EP 50 DI 10.3354/meps242039 ID 10033 ER EF