FN Archimer Export Format
PT J
TI Phytoplankton seasonal dynamics in a Mediterranean coastal lagoon: emphasis on the picoeukaryote community
BT 
AF BEC, Béatrice
   HUSSEINI RATREMA, Julie
   COLLOS, Yves
   SOUCHU, Philippe
   VAQUER, André
AS 1:1;2:1;3:1;4:2;5:1;
FF 1:;2:;3:;4:PDG-DOP-DCN-AGSAE-CREMA;5:;
C1 Univ Montpellier 2, Lab Ecosyst Lagunaires, CNRS, UMR 5119, F-34095 Montpellier, France.
   IFREMER, Lab Cotier Del, F-34203 Sete, France.
C2 UNIV MONTPELLIER, FRANCE
   IFREMER, FRANCE
SI LA ROCHELLE
SE PDG-DOP-DCN-AGSAE-CREMA
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 1.365
TC 84
UR https://archimer.ifremer.fr/doc/2005/publication-726.pdf
LA English
DT Article
DE ;Coastal lagoon;NW Mediterranean;Picoeukaryote;Phytoplankton
AB The dynamics of the phytoplankton community were investigated in a marine coastal lagoon (Thau, NW Mediterranean) from February 1999 to January 2000. Dilution experiments, chlorophyll a (Chl a) size-fractionation and primary production measurements were conducted monthly. Maximum growth and microzooplankton grazing rates were estimated from Chl a biomass fractions to separate pico- from nano- and microphytoplankton and by flow cytometry to distinguish between picoeukaryotes and picocyanobacteria. In spring, the phytoplankton community was dominated by Chaetoceros sp. and Skeletonema costatum, which represented most of biomass (B) and primary production (P). Nano- and microphytoplankton growth was controlled by nutrient availability and exceeded losses due to microzooplankton grazing (g). Picoeukaryote and cyanobacteria growth was positively correlated with water temperature and/or irradiance, reaching maximum values in the summer (2.38 and 1.44 day(-1) for picoeukaryotes and cyanobacteria, respectively). Picophytoplankton accounted for 57% of the biomass-specific primary productivity (P/B). Picophytoplankton was strongly controlled by protist grazers (g = 0.09-1.66 day(-1) for picoeukaryotes, g = 0.25-1.17 day(-1) for cyanobacteria), and microzooplankton consumption removed 71% of the daily picoplanktonic growth. Picoeukaryotes, which numerically dominate the picoplankton community, are an important source of organic carbon for the protistan community and contribute to the carbon flow to higher trophic levels.
PY 2005
PD SEP
SO Journal of plankton research
SN 0142-7873
PU Oxford university press
VL 27
IS 9
UT 000233066500004
BP 881
EP 894
DI 10.1093/plankt/fbi061
ID 726
ER

EF