175
H.-J. Ceccaldi et al. (eds.), Marine Productivity: Perturbations and Resilience of Socio-ecosystems,
DOI 10.1007/978-3-319-13878-7_19, © Springer International Publishing Switzerland 2015
1
Introduction
The Eastern English Channel is an important
ecological area that is experiencing growing
human pressure, mainly exerted by the bordering countries, France and the United Kingdom,
and is subjected to a wide range of uses such as
fishing, sediment extraction, and transport
(Desprez 2000; Martin et al. 2010; Rochet et al.
2008). Spatial regulations, including marine protected areas (MPAs), are now increasingly introduced to legislate these perturbations (Leathwick
et al. 2008; Sala 2002; Spalding et al. 2008;
Abstract
In the past decade, systematic conservation planning tools have been
increasingly and successfully used to set spatial conservation plans that
meet quantitative protection targets while minimizing enforcement and
socioeconomic costs. However, when applied to fisheries, systematic conservation planning fails to account for (1) changes in fleet dynamics induced
by new conservation constraints and their associated feedbacks on conservation costs or (2) their influence on fish population dynamics and distributions, which may in turn alter the achievement of conservation targets. Such
a static approach may therefore lead to short- or medium-term misestimates
in forecasted costs and target achievements. In order to circumvent such
limitations of systematic conservation planning, we present a first attempt to
couple a conservation planning tool (Marxan with Zones) with a mixed fisheries dynamics simulation model (ISIS-Fish), applied to the Eastern English
Channel fisheries. Broad principles and perspectives are discussed and
anticipated future challenges of such an approach are presented.
Y. Reecht (*) • P. Marchal
Ifremer, Unité Halieutique de Manche mer du Nord,
150 quai Gambetta, BP 699, F-62321 Boulognesur-mer Cedex, France
e-mail: Yves.Reecht@ifremer.fr
L. Gasche • S. Mahévas
Ifremer, Unité Ecologie et Modèles pour
l’Halieutique, rue de l’Ile d’Yeu, BP 21105,
F-44311 Nantes Cedex 03, France
S. Lehuta
Ifremer, unité Ecologie et Modèles pour l’halieutique,
rue de l’ile d’Yeu, F-44311 Nantes 03, France
S. Vaz
Ifremer, Unité Halieutique de Méditerranée, avenue
Jean Monnet, CS 30171, F-34203 Sète, France
R.J. Smith
Durrell Institute of Conservation and Ecology,
University of Kent, Canterbury CT2 7NR, UK
Toward a Dynamical Approach
for Systematic Conservation
Planning of Eastern English
Channel Fisheries
Yves Reecht, Loïc Gasche, Sigrid Lehuta,
Sandrine Vaz, Robert J. Smith, Stéphanie Mahévas,
and Paul Marchal
H.-J. Ceccaldi et al. (eds.), Marine Productivity: Perturbations and Resilience of Socio-ecosystems,
DOI 10.1007/978-3-319-13878-7_19, © Springer International Publishing Switzerland 2015
1
Introduction
The Eastern English Channel is an important
ecological area that is experiencing growing
human pressure, mainly exerted by the bordering countries, France and the United Kingdom,
and is subjected to a wide range of uses such as
fishing, sediment extraction, and transport
(Desprez 2000; Martin et al. 2010; Rochet et al.
2008). Spatial regulations, including marine protected areas (MPAs), are now increasingly introduced to legislate these perturbations (Leathwick
et al. 2008; Sala 2002; Spalding et al. 2008;
Abstract
In the past decade, systematic conservation planning tools have been
increasingly and successfully used to set spatial conservation plans that
meet quantitative protection targets while minimizing enforcement and
socioeconomic costs. However, when applied to fisheries, systematic conservation planning fails to account for (1) changes in fleet dynamics induced
by new conservation constraints and their associated feedbacks on conservation costs or (2) their influence on fish population dynamics and distributions, which may in turn alter the achievement of conservation targets. Such
a static approach may therefore lead to short- or medium-term misestimates
in forecasted costs and target achievements. In order to circumvent such
limitations of systematic conservation planning, we present a first attempt to
couple a conservation planning tool (Marxan with Zones) with a mixed fisheries dynamics simulation model (ISIS-Fish), applied to the Eastern English
Channel fisheries. Broad principles and perspectives are discussed and
anticipated future challenges of such an approach are presented.
Y. Reecht (*) • P. Marchal
Ifremer, Unité Halieutique de Manche mer du Nord,
150 quai Gambetta, BP 699, F-62321 Boulognesur-mer Cedex, France
e-mail: Yves.Reecht@ifremer.fr
L. Gasche • S. Mahévas
Ifremer, Unité Ecologie et Modèles pour
l’Halieutique, rue de l’Ile d’Yeu, BP 21105,
F-44311 Nantes Cedex 03, France
S. Lehuta
Ifremer, unité Ecologie et Modèles pour l’halieutique,
rue de l’ile d’Yeu, F-44311 Nantes 03, France
S. Vaz
Ifremer, Unité Halieutique de Méditerranée, avenue
Jean Monnet, CS 30171, F-34203 Sète, France
R.J. Smith
Durrell Institute of Conservation and Ecology,
University of Kent, Canterbury CT2 7NR, UK
Toward a Dynamical Approach
for Systematic Conservation
Planning of Eastern English
Channel Fisheries
Yves Reecht, Loïc Gasche, Sigrid Lehuta,
Sandrine Vaz, Robert J. Smith, Stéphanie Mahévas,
and Paul Marchal