Jellyfication of marine ecosystems as a likely consequence of overfishing small pelagic fishes: Lessons from the Benguela

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dc.contributor.authorRoux, Jean-Paul
dc.contributor.authorvan der Lingen, Carl D.
dc.contributor.authorGibbons, Mark J.
dc.contributor.authorMoroff, Nadine E.
dc.contributor.authorShannon, Lynne J.
dc.contributor.authorSmith, Anthony D.M.
dc.contributor.authorCury, Philippe M.
dc.date.accessioned2017-12-11T13:48:14Z
dc.date.available2017-12-11T13:48:14Z
dc.date.issued2013
dc.description.abstractChanges in two contrasting ecosystems of the Benguela upwelling region, one dominated at mid-trophic level by jellyfishes (Namibia, northern Benguela ecosystem, where small pelagic fish abundance has been severely depleted) and one still dominated by small pelagic fishes (South Africa, southern Benguela) were compared in an effort to determine ecosystem trajectories under different exploitation regimes. The role of small pelagic fishes (clupeoids) was highlighted in the context of their importance in maintaining interactions in marine ecosystems. In particular, we examined trophic cascades and possible irreversible changes that promote the proliferation of jellyfishes in marine systems. We found that the presence of large populations of small pelagic fishes has a fundamental role in preserving beneficial trophic interactions in these marine ecosystems. The implications of trophic cascades, such as those observed in the northern Benguela, for ecosystem-based management were apparent. In addition, this comparison provides contrasting case studies to inform the development of management scenarios that avoid ecosystem shifts that affect predators and reduce the value of fisheries production.en_US
dc.description.accreditationWeb of Science
dc.identifier.citationRoux, J.P. (2013). Jellyfication of marine ecosystems as a likely consequence of overfishing small pelagic fishes: Lessons from the Benguela. Bulletin of Marine Science, 89(1): 249-284en_US
dc.identifier.issn0007-4977
dc.identifier.urihttps://dx.doi.org/10.5343/bms.2011.1145
dc.identifier.urihttp://hdl.handle.net/10566/3316
dc.language.isoenen_US
dc.privacy.showsubmitterFALSE
dc.publisherUniversity of Miami, Rosenstiel School of Marine and Atmospheric Scienceen_US
dc.rightsThis is the embargoed publisher's version of the article available online at: https://dx.doi.org/10.5343/bms.2011.1145
dc.status.ispeerreviewedTRUE
dc.subjectMarine ecosystemsen_US
dc.subjectBenguelaen_US
dc.subjectPelagic fishen_US
dc.subjectEcosystem shiftsen_US
dc.subjectFisheriesen_US
dc.titleJellyfication of marine ecosystems as a likely consequence of overfishing small pelagic fishes: Lessons from the Benguelaen_US
dc.typeArticleen_US

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Prof. Mark Gibbons