Ecosystem structure and fishing impacts in the northwestern Mediterranean Sea using a food web model within a comparative approach
17 pages, 7 figures, 6 tables, supplementary material http://dx.doi.org/10.1016/j.jmarsys.2015.03.006
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Subjects: | Northwestern Mediterranean, Ecopath model, Mass-balance model, Fishing impacts, Ecosystem approach to fisheries, Comparative approach, |
Online Access: | http://hdl.handle.net/10261/122014 |
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dig-icm-es-10261-1220142022-10-04T07:47:05Z Ecosystem structure and fishing impacts in the northwestern Mediterranean Sea using a food web model within a comparative approach Corrales, Xavier Coll, Marta Tecchio, Samuele Bellido, José M. Fernández, Ángel M. Palomera, Isabel Northwestern Mediterranean Ecopath model Mass-balance model Fishing impacts Ecosystem approach to fisheries Comparative approach 17 pages, 7 figures, 6 tables, supplementary material http://dx.doi.org/10.1016/j.jmarsys.2015.03.006 We developed an ecological model to characterize the structure and functioning of the marine continental shelf and slope area of the northwestern Mediterranean Sea, from Toulon to Cape La Nao (NWM model), in the early 2000s. The model included previously modeled areas in the NW Mediterranean (the Gulf of Lions and the Southern Catalan Sea) and expanded their ranges, covering 45,547 km2, with depths from 0 to 1000 m. The study area was chosen to specifically account for the connectivity between the areas and shared fish stocks and fleets. Input data were based on local scientific surveys and fishing statistics, published data on stomach content analyses, and the application of empirical equations to estimate consumption and production rates. The model was composed of 54 functional groups, from primary producers to top predators, and Spanish and French fishing fleets were considered. Results were analyzed using ecological indicators and compared with outputs from ecosystem models developed in the Mediterranean Sea and the Gulf of Cadiz prior to this study. Results showed that the main trophic flows were associated with detritus, phytoplankton, zooplankton and benthic invertebrates. Several high trophic level organisms (such as dolphins, benthopelagic cephalopods, large demersal fishes from the continental shelf, and other large pelagic fishes), and the herbivorous salema fish, were identified as keystone groups within the ecosystem. Results confirmed that fishing impact was high and widespread throughout the food web. The comparative approach highlighted that, despite productivity differences, the ecosystems shared common features in structure and functioning traits such as the important role of detritus, the dominance of the pelagic fraction in terms of flows and the importance of benthic–pelagic coupling Xavier Corraleswas partially supported by an IOLR scholarship.Marta Collwas partially supported by the EC Marie Curie CIG grant to BIOWEB and the Spanish Research Program Ramon y Cajal. This is a contribution to ECOTRANS Spanish PN project and to DESSIM Israeli project Peer reviewed 2015-08 artículo http://purl.org/coar/resource_type/c_6501 Journal of Marine Systems 148: 183-199 (2015) 0924-7963 http://hdl.handle.net/10261/122014 10.1016/j.jmarsys.2015.03.006 1879-1573 en http://dx.doi.org/10.1016/j.jmarsys.2015.03.006 Sí none Elsevier |
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Northwestern Mediterranean Ecopath model Mass-balance model Fishing impacts Ecosystem approach to fisheries Comparative approach Northwestern Mediterranean Ecopath model Mass-balance model Fishing impacts Ecosystem approach to fisheries Comparative approach |
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Northwestern Mediterranean Ecopath model Mass-balance model Fishing impacts Ecosystem approach to fisheries Comparative approach Northwestern Mediterranean Ecopath model Mass-balance model Fishing impacts Ecosystem approach to fisheries Comparative approach Corrales, Xavier Coll, Marta Tecchio, Samuele Bellido, José M. Fernández, Ángel M. Palomera, Isabel Ecosystem structure and fishing impacts in the northwestern Mediterranean Sea using a food web model within a comparative approach |
description |
17 pages, 7 figures, 6 tables, supplementary material http://dx.doi.org/10.1016/j.jmarsys.2015.03.006 |
format |
artículo |
topic_facet |
Northwestern Mediterranean Ecopath model Mass-balance model Fishing impacts Ecosystem approach to fisheries Comparative approach |
author |
Corrales, Xavier Coll, Marta Tecchio, Samuele Bellido, José M. Fernández, Ángel M. Palomera, Isabel |
author_facet |
Corrales, Xavier Coll, Marta Tecchio, Samuele Bellido, José M. Fernández, Ángel M. Palomera, Isabel |
author_sort |
Corrales, Xavier |
title |
Ecosystem structure and fishing impacts in the northwestern Mediterranean Sea using a food web model within a comparative approach |
title_short |
Ecosystem structure and fishing impacts in the northwestern Mediterranean Sea using a food web model within a comparative approach |
title_full |
Ecosystem structure and fishing impacts in the northwestern Mediterranean Sea using a food web model within a comparative approach |
title_fullStr |
Ecosystem structure and fishing impacts in the northwestern Mediterranean Sea using a food web model within a comparative approach |
title_full_unstemmed |
Ecosystem structure and fishing impacts in the northwestern Mediterranean Sea using a food web model within a comparative approach |
title_sort |
ecosystem structure and fishing impacts in the northwestern mediterranean sea using a food web model within a comparative approach |
publisher |
Elsevier |
url |
http://hdl.handle.net/10261/122014 |
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