FN Archimer Export Format
PT J
TI Resource Competition Affects Plankton Community Structure; Evidence from Trait-Based Modeling
BT 
AF SOURISSEAU, Marc
   LE GUENNEC, Valerie
   LE GLAND, Guillaume
   PLUS, Martin
   CHAPELLE, Annie
AS 1:1;2:2;3:3;4:1;5:1;
FF 1:PDG-ODE-DYNECO-PELAGOS;2:;3:;4:PDG-ODE-DYNECO-PELAGOS;5:PDG-ODE-DYNECO-PELAGOS;
C1 Inst Francais Rech Exploitat Mer, Dept Oceanog & Dynam Ecosyst, Lab Ecol Pelag, Unite Dynam Ecosyst Cotiers, Plouzane, France
   Liverpool university, United Kingdom
   Univ Bretagne Occidentale, Inst Univ Europeen Mer, Lab Sci Environm Marin, UMR6539, Plouzane, France
C2 IFREMER, FRANCE
   UNIV LIVERPOOL, UK
   UBO, FRANCE
SI BREST
SE PDG-ODE-DYNECO-PELAGOS
UM LEMAR
IN WOS Ifremer jusqu'en 2018
   DOAJ
   copubli-france
   copubli-europe
   copubli-univ-france
IF 5.247
TC 11
UR https://archimer.ifremer.fr/doc/00373/48414/48624.pdf
LA English
DT Article
DE ;Droop;competition;inter-specific;estuary;Bay of Brest;Alexandrium minutum;phenology;niches
AB Understanding the phenology of phytoplankton species is still a challenge and despite a lot of theoretical work on competition for ressources this process is under-represented in deterministic models. To study the main driver of the species selection, we thus used a trait-based model that keeps phenotypic variability through physiological trait parameterization. We next validate the results by using a key species, the toxic dinoflagellate Alexandrium minutum. Due to their monitoring, we show that harmful algae are ideal models for studying ecological niches and for contributing to this more global challenge. As a first step, a dimensionless model of an estuary (France) was built with water temperature and water exchanges deduced from a hydro-dynamic model. The biological parametrisation takes into account the size (from pico- to microphytoplankton) and the type of assimilation. The results show that temperature, competition for nutrients and dilution are important factors regulating the community structure and \textit{Alexandrium minutum} dynamics (more especially the bloom initiation and magnitude). These drivers contribute to determine the ecological niche of A. minutum, to influence the shape of its blooms and to provide potential explanations of its interannual variability. This approach mainly introduce more flexibility of the community structure to study how environmental forcing could drive its evolution.
PY 2017
SO Frontiers In Marine Science
SN 2296-7745
PU Frontiers Media SA
VL 4
IS 52
UT 000457690600052
DI 10.3389/fmars.2017.00052
ID 48414
ER

EF