FN Archimer Export Format
PT J
TI Potential combined impacts of climate change and non-indigenous species arrivals on Bay of Biscay trophic network structure and functioning
BT 
AF Le Marchand, Marie
   Ben Rais Lasram, F.
   Araignous, Emma
   Saint-Béat, Blanche
   Lassalle, G.
   Michelet, Nicolas
   Serre, S.
   Safi, Georges
   Lejart, Morgane
   Niquil, N.
   LE LOCH, Francois
AS 1:1,2;2:3;3:2;4:4;5:5;6:2;7:1;8:2;9:2;10:6;11:7;
FF 1:;2:;3:;4:PDG-ODE-DYNECO-PELAGOS;5:;6:;7:;8:;9:;10:;11:;
C1 Univ Brest, CNRS, IRD, Ifremer, LEMAR, F-29280 Plouzané, France
   France Energies Marines, 525 avenue Alexis de Rochon, 29280 Plouzané, France
   Univ. Littoral Côte d'Opale, Univ. Lille, CNRS, UMR 8187, LOG, Laboratoire d'Océanologie et de Géosciences, F 62930 Wimereux, France
   IFREMER, Dyneco Pelagos, BP 70, 29208 Plouzané, France
   INRAE, UR EABX, 50 avenue de Verdun, Cestas Cedex 33612, France
   Lab BOREA, Team Ecofunc, Université de Caen, CNRS, MNHN, IRD, SU, UA CS 14032, 14000 Caen, France
   Univ Brest, CNRS, IRD, Ifremer, LEMAR, F-29280 Plouzané, France
C2 UBO, FRANCE
   FRANCE ENERGIES MARINES, FRANCE
   UNIV LITTORAL COTE D'OPALE, FRANCE
   IFREMER, FRANCE
   INRAE, FRANCE
   UNIV CAEN, FRANCE
   IRD, FRANCE
SI BREST
SE PDG-ODE-DYNECO-PELAGOS
UM LEMAR
IN WOS Ifremer UPR
   WOS Cotutelle UMR
   copubli-france
   copubli-p187
   copubli-univ-france
IF 2.8
TC 1
UR https://archimer.ifremer.fr/doc/00750/86160/109255.pdf
LA English
DT Article
DE ;Climate change;Non-indigenous species;Ecological Network Analysis;Food web modeling;Fisheries
AB The consequences of climate change for marine organisms are now well-known, and include metabolism and behavior modification, distribution area shifts and changes in the community. In the Bay of Biscay, the potential environmental niches of subtropical non-indigenous species (NIS) are projected to expand as a response to sea temperature rise by the mid-century under the RCP8.5 climate change scenario. In this context, this study aims to project the combined effects of changes in indigenous species distribution and metabolism and NIS arrivals on the functioning of the Bay of Biscay trophic network. To do this, we created six different Ecopath food web models: a “current situation” trophic model (2007–2016) and five “future” trophic models. The latter five models included various NIS biomass combinations to reflect different potential scenarios of NIS arrivals. For each model, eight Ecological Network Analysis (ENA) indices were calculated, describing the properties of the food web resulting from the sum of interactions between organisms. Our results illustrate that rising temperature increases the quantity of energy passing through the system due to increased productivity. A decrease in the biomass of some trophic groups due to the reduction of their potential environmental niches also leads to changes in the structure of the trophic network. The arrival of NIS is projected to change the fate of organic matter within the ecosystem, with higher cycling, relative ascendency, and a chain-like food web. It could also cause new trophic interactions that could lead to competition and thus modify the food-web structure, with lower omnivory and higher detritivory. The combined impacts (increasing temperatures and NIS arrivals) could lower the resilience and resistance of the system. 
PY 2022
PD APR
SO Journal Of Marine Systems
SN 0924-7963
PU Elsevier BV
VL 228
UT 000765925400005
DI 10.1016/j.jmarsys.2022.103704
ID 86160
ER

EF