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dc.contributor.authorColl, Marta-
dc.contributor.authorLibralato, Simone-
dc.contributor.authorTudela, Sergi-
dc.contributor.authorPalomera, Isabel-
dc.contributor.authorPranovi, Fabio-
dc.identifier.citationPLoS ONE 3(12): e3881en_US
dc.description10 pages, 5 figures.-- PMCID: PMC2587707 [PubMed Central].-- Supporting informmation (figures S1-S2, tables S1-S5) available at the publisher's siteen_US
dc.description.abstractFisheries catches represent a net export of mass and energy that can no longer be used by trophic levels higher than those fished. Thus, exploitation implies a depletion of secondary production of higher trophic levels (here the production of mass and energy by herbivores and carnivores in the ecosystem) due to the removal of prey. The depletion of secondary production due to the export of biomass and energy through catches was recently formulated as a proxy for evaluating the ecosystem impacts of fishing–i.e., the level of ecosystem overfishing. Here we evaluate the historical and current risk of ecosystem overfishing at a global scale by quantifying the depletion of secondary production using the best available fisheries and ecological data (i.e., catch and primary production). Our results highlight an increasing trend in the number of unsustainable fisheries (i.e., an increase in the risk of ecosystem overfishing) from the 1950s to the 2000s, and illustrate the worldwide geographic expansion of overfishing. These results enable to assess when and where fishing became unsustainable at the ecosystem level. At present, total catch per capita from Large Marine Ecosystems is at least twice the value estimated to ensure fishing at moderate sustainable levelsen_US
dc.description.sponsorshipMC was supported financially with a Predoctoral and a postdoctoral fellowship from the Spanish Ministry of Education and Science and additional support by Dalhousie University (Halifax, Canada)en_US
dc.format.extent1453048 bytes-
dc.publisherPublic Library of Scienceen_US
dc.relation.isversionofPublisher’s version-
dc.subjectFishing impacten_US
dc.subjectTrophic levelsen_US
dc.subjectDepletion of secondary productionen_US
dc.subjectLarge marine ecosystemsen_US
dc.titleEcosystem Overfishing in the Oceanen_US
dc.description.peerreviewedPeer revieweden_US
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