FN Archimer Export Format
PT J
TI Benthic and fish aggregation inside an offshore wind farm: Which effects on the trophic web functioning?
BT 
AF RAOUX, Aurore
   TECCHIO, Samuele
   PEZY, Jean-Philippe
   LASSALLE, Geraldine
   DEGRAER, Steven
   WILHELMSSON, Dan
   CACHERA, Marie
   ERNANDE, Bruno
   LE GUEN, Camille
   HARALDSSON, Matilda
   GRANGERE, Karine
   LE LOC'H, Francois
   DAUVIN, Jean-Claude
   NIQUIL, Nathalie
AS 1:1,2;2:1;3:2;4:3;5:4;6:5;7:7;8:6;9:1;10:1;11:1;12:7;13:2;14:1;
FF 1:;2:;3:;4:;5:;6:;7:;8:PDG-RBE-HMMN-LRHBL;9:;10:;11:;12:;13:;14:;
C1 INormandie Univ UNICAEN, BOREA MNHN UPMC UCN CNRS IRD207 CS 14032, UMR 7208, F-14000 Caen, France.
   Normandie Univ UNICAEN, M2C UCN UR CNRS, UMR 6143, 24 Rue Tilleuls, F-14000 Caen, France.
   UR EABX Aquat Ecosyst & Global Changes, IRSTEA, 50 Ave Verdun, F-33612 Cestas, France.
   RBINS, Operat Directorate Nat Environm OD Nature, Marine Ecol & Management MARECO, Gulledelle 100, B-1200 Brussels, Belgium.
   Royal Swedish Acad Sci, Box 50005, SE-10405 Stockholm, Sweden.
   IFREMER, Lab Ressources Halieut, 150 Quai Gambetta,BP 699, F-62321 Boulogne, France.
   IUEM, LEMAR CNRS UBO IRDIfremer, Lab Sci Environnement Marin, UMR 6539, Technopole Brest Iroise,Rue Dumont Urville, F-29280 Plouzane, France.
C2 UNIV CAEN, FRANCE
   UNIV CAEN, FRANCE
   IRSTEA, FRANCE
   ROYAL BELGIAN INST NAT SCI, BELGIUM
   ROYAL SWEDISH ACAD SCI, SWEDEN
   IFREMER, FRANCE
   UBO, FRANCE
SI BOULOGNE
SE PDG-RBE-HMMN-LRHBL
UM LEMAR
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-p187
   copubli-europe
   copubli-univ-france
IF 3.983
TC 83
UR https://archimer.ifremer.fr/doc/00347/45843/46723.pdf
LA English
DT Article
DE ;Marine renewable energies;Reef effect;Wind farm;Ecopath with Ecosim;Ecosystem-based approach
AB As part of the energy transition, the French government is planning the construction of three offshore wind farms in Normandy (Bay of Seine and eastern part of the English Channel, north-western France) in the next years. These offshore wind farms will be integrated into an ecosystem already facing multiple anthropogenic disturbances such as maritime transport, fisheries, oyster and mussel farming, and sediment dredging. Currently no integrated, ecosystem-based study on the effects of the construction and exploitation of offshore wind farms exists, where biological approaches generally focused on the conservation of some valuable species or groups of species. Complementary trophic web modelling tools were applied to the Bay of Seine ecosystem (to the 50 km2 area covered by the wind farm) to analyse the potential impacts of benthos and fish aggregation caused by the introduction of additional hard substrates from the piles and the turbine scour protections. An Ecopath ecosystem model composed of 37 compartments, from phytoplankton to seabirds, was built to describe the situation “before” the construction of the wind farm. Then, an Ecosim projection over 30 years was performed after increasing the biomass of targeted benthic and fish compartments. Ecological Network Analysis (ENA) indices were calculated for the two periods, “before” and “after”, to compare network functioning and the overall structural properties of the food web. Our main results showed (1) that the total ecosystem activity, the overall system omnivory (proportion of generalist feeders), and the recycling increased after the construction of the wind farm; (2) that higher trophic levels such as piscivorous fish species, marine mammals, and seabirds responded positively to the aggregation of biomass on piles and turbine scour protections; and (3) a change in keystone groups after the construction towards more structuring and dominant compartments. Nonetheless, these changes could be considered as limited impacts of the wind farm installation on this coastal trophic web structure and functioning.
PY 2017
PD JAN
SO Ecological Indicators
SN 1470-160X
PU Elsevier Science Bv
VL 72
UT 000398426200004
BP 33
EP 46
DI 10.1016/j.ecolind.2016.07.037
ID 45843
ER

EF