FN Archimer Export Format
PT J
TI Using ecological trajectories to track long‐term taxonomic and functional changes in benthic shallow soft‐bottom communities (Bay of Saint‐Brieuc, English Channel)
BT 
AF Sturbois, Anthony
   Cormy, Gaetan
   Le Moal, Alexandre
   Schaal, Gauthier
   Broudin, Caroline
   Thiébaut, Eric
   Ponsero, Alain
   Le Mao, Patrick
   JONES, Auriane
   Riera, Pascal
   Gauthier, Olivier
   Desroy, Nicolas
AS 1:1,2,3,5;2:1,2;3:1,2;4:3;5:6;6:6;7:2,4;8:5;9:7;10:6;11:3;12:5;
FF 1:;2:PDG-ODE-LITTORAL-LERBN;3:;4:;5:;6:;7:;8:PDG-ODE-LITTORAL-LERBN;9:PDG-ODE-LITTORAL-LERLR;10:;11:;12:PDG-ODE-LITTORAL-LERBN;
C1 Vivarmor Nature, Ploufragan, France
   Réserve naturelle nationale de la Baie de Saint‐Brieuc, Hillion, France
   Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS/UBO/IRD/IFREMER, Plouzané ,France
   Saint‐Brieuc Agglomération Baie d'Armor ,Saint‐Brieuc ,France
   Laboratoire Environnement et Ressources Bretagne nord, Ifremer, Dinard ,France
   CNRS, Station Biologique de Roscoff, UMR7144 Sorbonne Université, Roscoff Cedex, France
   MARBEC, Univ Montpellier, CNRS, Ifremer, IRD, Sète, France
C2 VIVARMOR NATURE, FRANCE
   RESERVE NAT BAIE ST BRIEUC, FRANCE
   UBO, FRANCE
   ST BRIEUC AGGLO BAIE D'ARMOR, FRANCE
   IFREMER, FRANCE
   CNRS, FRANCE
   IFREMER, FRANCE
SI DINARD
   SETE
SE PDG-ODE-LITTORAL-LERBN
   PDG-ODE-LITTORAL-LERLR
UM LEMAR
   MARBEC
IN WOS Ifremer UPR
   WOS Ifremer UMR
   WOS Cotutelle UMR
   copubli-france
   copubli-univ-france
IF 3.258
TC 3
UR https://archimer.ifremer.fr/doc/00724/83611/88762.pdf
LA English
DT Article
CR RESTRO 19
BO Thalia
DE ;benthic assemblages;community trajectory analysis;conservation;ecological trajectories;eutrophication;long-term changes;macrofauna;Natura 2000;scallop dredging
AB Taxonomic and functional trajectories of benthic assemblages were studied in shallow soft-bottom sediments in the bay of Saint-Brieuc (Western English Channel). Changes were assessed at different spatial and temporal scales using a macrobenthic dataset based on 38 stations sampled in 1987 and 2019, coupled with data from one station sampled annually between 2005 and 2019 as part of the European Water Framework Directive monitoring programme. Taxonomic trajectories indicated 1) changes in the structure and distribution of benthic assemblages, 2) an homogenization of the assemblages, and 3) significant functional shifts. Fishing activities and nutrient enrichment are probably strong drivers of the observed changes, as suggested by the higher mortality rate of fragile, flexible, tubiculous and burrowing species, and the increase in the abundance of opportunistic species in the assemblages. Certain populations of macroinvertebrates seem jointly controlled by climate change and by the aforementioned local factors of disturbance. The Community Trajectory Analysis framework appears as a new and interesting method to track ecological changes in marine ecosystems by measuring change with respect to a baseline state, to help define ecological recovery (station returning to the initial ecological state) and departure (station presenting increased changes over time), and to analyse trajectory similarity. According to the degradation of habitat over time, we identify the need for the implementation of knowledge-based conservation strategies, especially within Natura 2000 sites. 
PY 2021
PD NOV
SO Aquatic Conservation-marine And Freshwater Ecosystems
SN 1052-7613
PU Wiley
VL 31
IS 11
UT 000700272400001
BP 3013
EP 3033
DI 10.1002/aqc.3704
ID 83611
ER

EF