FN Archimer Export Format
PT J
TI Ecosystem modelling of the Eastern Corsican Coast (ECC): Case study of one of the least trawled shelves of the Mediterranean Sea
BT 
AF Vanalderweireldt, L.
   Albouy, Camille
   LE LOCH, Francois
   Millot, R.
   Blestel, C.
   Patrissi, M.
   Marengo, M.
   Garcia, Jessica
   Bousquet, C.
   Barrier, C.
   Lefur, M.
   Bisgambiglia, P.-A.
   Donnay, A.
   Ternengo, S.
   Aiello, A.
   Lejeune, P.
   Durieux, E.D.H.
AS 1:1;2:2,3;3:4;4:5;5:1;6:6;7:6;8:5;9:5;10:1;11:1;12:1;13:6;14:1,5;15:5;16:6;17:1,5;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:;14:;15:;16:;17:;
C1 UMR SPE 6134, Université de Corse Pasquale Paoli, Corte, France
   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
   IRD, Univ Brest, CNRS, IFREMER, LEMAR, F-29280 Plouzane, France
   UMS 3514 Stella Mare, Université de Corse Pasquale Paoli, Corte, France
   Station de Recherches sous-marines et Océanographiques (STARESO), Pointe Revellata, Calvi, France
C2 UNIV CORSE PASCAL PAOLI, FRANCE
   ETH ZURICH, SWITZERLAND
   SWISS FED RES INST WSL, SWITZERLAND
   IRD, FRANCE
   UNIV CORSE PASQUALE PAOLI, FRANCE
   STARESO, FRANCE
UM LEMAR
IN WOS Cotutelle UMR
   copubli-france
   copubli-univ-france
   copubli-int-hors-europe
IF 2.8
TC 2
UR https://archimer.ifremer.fr/doc/00789/90112/95672.pdf
LA English
DT Article
CR MEDITS
DE ;Ecopath;EcoTroph;Fishing impacts;Mediterranean Sea;Trawling;Trophic structure
AB The Eastern Corsican Coast (ECC) is distinguished by its shallow sandy shelf, extensive Posidonia seagrass meadows, and the relatively limited exploitation of fish in this region. To understand ECC trophic functioning and the effects of fishing in this region of the Mediterranean Sea, we applied the Ecopath and EcoTroph approaches. Our model encompassed 5 groups of primary producers and detritus, 14 invertebrate groups, two groups of Chondrichthyes, 16 teleost groups, one seabird group, and one group of cetaceans. The ECC ecosystem was structured into five trophic levels, regulated top–down by Sphyraenidae, Epinephelus marginatus, and Dentex dentex. The ecosystem displayed a high degree of benthic–pelagic coupling, confirmed by keystone groups/species located at intermediate trophic levels (Seriola dumerilii, planktivorous teleosts, benthic cephalopods, shrimps, zooplankton). The ECC demonstrated the lowest exploitation rate (F/Z) of all exploited Mediterranean ecosystems, with trawling representing 55% of catches, followed by the lobster net (27%) and fish net (18%) fisheries. Catches often included untargeted groups—often discarded dead—in particular sharks and rays, and several protected species. Moreover, Palinurus elephas, Scorpaena scrofa, and Dentex dentex had elevated F/Z values, highlighting their vulnerabilities to fishing. Although the fishing simulations suggested that the ECC could support a greater exploitation, they also revealed that these fisheries have a marked impact on upper trophic levels. Our study draws attention to the critical habitat the ECC provides for Chondrichthyes, evidenced by the significant biomass for these taxa and the low fishing pressure relative to other exploited Mediterranean systems. This first modelling of the ECC is an initial step towards modelling all Corsican marine ecosystems to serve as a guide for preserving these ecosystems through appropriate management measures. 
PY 2022
PD NOV
SO Journal Of Marine Systems
SN 0924-7963
PU Elsevier BV
VL 235
UT 000855040800001
DI 10.1016/j.jmarsys.2022.103798
ID 90112
ER

EF