Title :

A spatial food web model to investigate potential spillover effects of a fishery closure in an offshore wind farm

Author(s) :

Halouani, Ghassen [Auteur]
Biologie des Organismes et Ecosystèmes Aquatiques [BOREA]
Laboratoire Ressources halieutiques Boulogne sur mer [LRHBL]
Villanueva, Ching-Maria [Auteur]
Écologie et Modèles pour l'Halieutique [EMH]
Raoux, Aurore [Auteur]
Morphodynamique Continentale et Côtière [M2C]
Biologie des Organismes et Ecosystèmes Aquatiques [BOREA]
Dauvin, Jean-Claude [Auteur]
Morphodynamique Continentale et Côtière [M2C]
Ben Rais Lasram, Frida [Auteur]
Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 [LOG]
Foucher, Eric [Auteur]
Laboratoire Ressources halieutiques Boulogne sur mer [LRHBL]
Le Loc’h, François [Auteur]
Laboratoire des Sciences de l'Environnement Marin (LEMAR) [LEMAR]
Safi, Georges [Auteur]
France Energies Marines [Brest]
Biologie des Organismes et Ecosystèmes Aquatiques [BOREA]
Araignous, Emma [Auteur]
France Energies Marines [Brest]
Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 [LOG]
Biologie des Organismes et Ecosystèmes Aquatiques [BOREA]
Robin, Jean Paul [Auteur]
Biologie des Organismes et Ecosystèmes Aquatiques [BOREA]
Niquil, Nathalie [Auteur]
Biologie des Organismes et Ecosystèmes Aquatiques [BOREA]

Journal title :

Journal of Marine Systems

Pages :

103434

Publisher :

Elsevier

Publication date :

2020

ISSN :

0924-7963

English keyword(s) :

Spillover effects
Fishing
Ecosystem-based approach
Marine Renewable Energy
Ecospace
Ecopath with Ecosim

HAL domain(s) :

Sciences de l'environnement/Biodiversité et Ecologie
Planète et Univers [physics]/Sciences de la Terre/Océanographie

English abstract : [en]

There is a growing interest in the development of offshore wind farms to provide a sustainable source of renewable energy and contribute to the reduction of carbon emissions. In parallel, there is a need to better understand ...
Show more >There is a growing interest in the development of offshore wind farms to provide a sustainable source of renewable energy and contribute to the reduction of carbon emissions. In parallel, there is a need to better understand the effects of these installations on coastal marine ecosystems and identify potential sea use conflicts, especially when the area is subject to access restrictions. This study investigated the effects of a spatial closure during the exploitation phase of an offshore wind farm in the extended Bay of Seine (English Channel, France) using Ecospace, a spatially and temporally explicit module of Ecopath with Ecosim. To address this question, simulations were conducted through the evaluation of “what-if scenarios” to assess the effectiveness of a fishing exclusion zone inside and surrounding the offshore wind farm. Several biomass, catch and trophic level-based indicators were calculated to evaluate how the exclusion zone could affect fishing activities and main components of the food web. All the indicators were estimated in the extended Bay of Seine and summarized by sub-area. Findings suggested that the spillover effect could mitigate the negative impact of access loss on fishing activities, in a scenario of simulated closure of the area of the wind farm. The Ecospace model predicted an increase of catches (up to 7% near the wind farm) and a slight increase in the proportion of high trophic level species. However, the influence of spillover effects is limited in space and the expected increase of biomass and catches are highly localized in areas around the offshore wind farm installations. At the scale of the Bay of Seine, further analysis of the spillover effects revealed a spatial pattern and suggested that the implementation of an exclusion zone inside the offshore wind farm could concentrate highly mobile predators.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

ANR Project :

France Energies Marines

Collections :

• Laboratoire d'Océanologie et de Géosciences (LOG) - UMR 8187

Source :

Harvested from HAL