FN Archimer Export Format
PT J
TI Contrasted spatio-temporal changes in the demersal fish assemblages and the dominance of the environment vs fishing pressure, in the Bay of Biscay and Celtic Sea
BT 
AF Eme, David
   Rufino, Marta
   Trenkel, Verena
   Vermard, Youen
   Laffargue, Pascal
   Petitgas, Pierre
   Pellissier, Loïc
   Albouy, Camille
AS 1:1,2;2:3,4;3:1;4:1;5:1;6:1;7:5,6;8:1;
FF 1:PDG-RBE-EMH;2:;3:PDG-RBE-HALGO;4:PDG-RBE-HALGO-EMH;5:PDG-RBE-HALGO-EMH;6:PDG-RBE;7:;8:PDG-RBE-HALGO-EMH;
C1 DECOD (Ecosystem Dynamics and Sustainability), IFREMER, INRAE, Institut Agro - Agrocampus Ouest, Nantes, France
   RiverLY Research Unit, National Research Institute for Agriculture Food and Environment, (INRAE), Villeurbanne, France
   IPMA- Portuguese Institute for the Sea and the Atmosphere, Division of Modelling and Management of Fisheries Resources, Av. Dr. Alfredo Magalhães Ramalho, 6, 1495-165 Lisboa
   CEAUL, Centre of Statistics and its Applications Faculty of Sciences, University of Lisbon, Portugal
   Landscape Ecology, Institute of Terrestrial Ecosystems, Department of Environmental Systems Science, ETH Zürich, Zürich, Switzerland
   Unit of Land Change Science, Swiss Federal Research Institute WSL, Birmensdorf, Switzerland
C2 IFREMER, FRANCE
   INRAE, FRANCE
   IPMA, PORTUGAL
   UNIV LISBON, PORTUGAL
   ETH ZURICH, SWITZERLAND
   SWISS FED RES INST WSL, SWITZERLAND
SI NANTES
SE PDG-RBE-EMH
   PDG-RBE-HALGO
   PDG-RBE-HALGO-EMH
   PDG-RBE
UM DECOD
IN WOS Ifremer UMR
   copubli-france
   copubli-p187
   copubli-europe
   copubli-int-hors-europe
IF 4.1
TC 6
UR https://archimer.ifremer.fr/doc/00764/87634/93075.pdf
LA English
DT Article
CR EVHOE 2000
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   EVHOE 97
   EVHOE 98
   EVHOE 99
   EVHOE EVALUATION HALIEUTIQUE OUEST DE L'EUROPE
BO Thalassa
DE ;Actinopterygii;Beta diversity;Energy;Habitat;Long-term ecological surveys;Taxonomic homogenization
AB Climate change and resource exploitation represent strong selection pressure affecting the spatio-temporal dynamics of marine assemblages that ensure food provision for humans. However, such dynamics remain poorly documented, and their drivers unclear. Here, we investigate changes in fish assemblages of two key European fishing areas, the Bay of Biscay (BoB) and the Celtic Sea (CS), during the last two decades. We quantify the relative contribution of change in energy (i.e. temperature and trophic resources), habitat (depth, substrate, oxygen) and fishing pressure to explaining observed spatial and temporal variations in fish diversity. We used long-term scientific surveys to evaluate the spatio-temporal changes in species richness (SR), abundance and composition of demersal fish (Actinopterygii) assemblages at different spatial scales combined with a range of regression models and variance partitioning. Diversity patterns showed greater variability in space than in time: SR weakly changed over time, while compositional dissimilarity showed local patterns of taxonomic homogenization in the CS and differentiation in the southern BoB, where local assemblages were becoming more similar and dissimilar over time, respectively. Energy funnelled through small pelagic species as a potential trophic link affecting the dynamics of demersal assemblages was the most important driver, while habitat and fishing pressure had limited importance. Our study revealed contrasted dynamics of demersal fish assemblages at a regional scale that were best explained by the dynamics of small pelagic species. Direct effects of environmental forcing and fishing pressure were limited in both regions which have a long history of fishing and still remain relatively buffered from global warming effects. This research paved the way to combine methods inspired by biogeography with scientific monitoring surveys to detect spatio-temporal dynamics of fish assemblages and their drivers in marine ecosystems under multiple pressures. 
PY 2022
PD JUL
SO Progress In Oceanography
SN 0079-6611
PU Elsevier BV
VL 204
UT 000929868000001
DI 10.1016/j.pocean.2022.102788
ID 87634
ER

EF