FN Archimer Export Format
PT J
TI An end-to-end model to evaluate the sensitivity of ecosystem indicators to track fishing impacts
BT 
AF Halouani, Ghassen
   Le Loc'h, François
   Shin, Yunne-Jai
   Velez, Laure
   Hattab, Tarek
   Romdhane, Mohamed Salah
   Ben Rais Lasram, Frida
AS 1:1,2,3;2:2;3:4,5;4:4;5:6;6:1;7:7;
FF 1:;2:;3:;4:;5:PDG-RBE-MARBEC-LHM;6:;7:;
C1 UR 03AGRO1 Ecosystèmes et Ressources Aquatiques, Institut National Agronomique de Tunisie, 43 Avenue Charles Nicolle, 1082 Tunis, Tunisia
   UMR 6539 Laboratoire des Sciences de l'Environnement Marin (CNRS, UBO, IRD, Ifremer), Institut Universitaire Européen de la Mer, Technopôle Brest-Iroise, Rue Dumont d'Urville, 29280 Plouzané, France
   Marine and Freshwater Research Centre (MFRC), Galway-Mayo Institute of Technology (GMIT), Dublin Road, Galway, Ireland
   MARBEC (IRD, Ifremer, Université de Montpellier, CNRS), Université de Montpellier, Bat. 24 – CC 093 Place Eugène, Bataillon 34095, Montpellier cedex 5, France
   University of Cape Town, Ma-Re Institute, Dept of Biological Sciences, Private Bag X3, Rondebosch 7701, South Africa
   MARBEC (IRD, Ifremer, Université de Montpellier, CNRS), Centre Ifremer, Avenue Jean Monnet, CS 30171, 34203 Sète Cedex, France
   Univ. Littoral Côte d’Opale, Univ. Lille, CNRS, UMR 8187, LOG, Laboratoire d’Océanologie et de Géosciences, F 62930 Wimereux, France
C2 INAT, TUNISIA
   IRD, FRANCE
   MFRC, IRELAND
   IRD, FRANCE
   UNIV CAPE TOWN, SOUTH AFRICA
   IFREMER, FRANCE
   UNIV LITTORAL COTE D'OPALE, FRANCE
SI SETE
SE PDG-RBE-MARBEC-LHM
UM LEMAR
   MARBEC
IN WOS Ifremer UMR
   WOS Cotutelle UMR
   copubli-france
   copubli-p187
   copubli-europe
   copubli-univ-france
   copubli-int-hors-europe
   copubli-sud
IF 4.229
TC 12
UR https://archimer.ifremer.fr/doc/00464/57604/60172.pdf
LA English
DT Article
DE ;Ecological indicators;OSMOSE;Ecosystem model;End-to-end model;Marine ecosystem;Fishing impacts;Fishery;Gulf of Gabes
AB In order to assist fisheries managers, ecological indicators are needed to evaluate the effects of fishing activities on marine ecosystems and to improve communication of these effects in both public and scientific contexts. Finding appropriate indicators is challenging given the complexity of marine food webs as well as the ecosystem response to fishing pressure. In this study, an end-to-end model developed in the Gulf of Gabes ecosystem (Tunisia) was used to compare the performance of a set of ecosystem indicators in assessing the impact of fishing. This end-to-end model aimed to represent the ecosystem functioning by coupling two existing sub-models, the multispecies individual-based model OSMOSE, representing the dynamics of exploited species and the biogeochemical model Eco3M-Med. The aim of the indicator selection method is to evaluate the sensitivity of a set of ecological indicators regardless the fishing management plan. This method was performed in two major steps. The first step consisted in simulating three simple contrasted fishing strategies in the OSMOSE model exploiting target species (i.e. high trophic level, low trophic level or all species) and then applying a fishing effort multiplier for each fishing strategy to the focus target species. In the second step, three paradigms defining the desirable properties of an ecological indicator have been specified: i/the indicator decreases with increasing fishing pressure, ii/the indicator responds linearly to an increase in fishing pressure and iii/the indicator responds consistently across different fishing strategies. Our results highlighted that the majority of indicators have quite similar performance regarding the trend and the linearity of their responses. However, the size-based indicators seem to be the most robust to track ecosystem effects of fishing when the fishing strategy changes. A focus on size-based indicators showed that Large Fish Indicators (40 cm) derived from demersal or all surveyed species were the most suitable to reflect a change in the status of the Gulf of Gabes ecosystem due to fishing pressure. 
PY 2019
PD MAR
SO Ecological Indicators
SN 1470-160X
PU Elsevier BV
VL 98
UT 000464891100014
BP 121
EP 130
DI 10.1016/j.ecolind.2018.10.061
ID 57604
ER

EF