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dc.contributor.authorPranovi, Fabio
dc.contributor.authorLink, Jason S.
dc.contributor.authorFu, Caihong
dc.contributor.authorCook, Adam M.
dc.contributor.authorLiu, Hui
dc.contributor.authorGaichas, Sarah
dc.contributor.authorFriedland, Kevin
dc.contributor.authorUtne, Kjell R.
dc.contributor.authorBenoît, Hugues P.
dc.date.accessioned2012-11-13T18:29:54Z
dc.date.available2012-11-13T18:29:54Z
dc.date.issued2012-07-12
dc.identifier.issn0171-8630
dc.identifier.issn1616-1599
dc.identifier.urihttp://hdl.handle.net/11250/109171
dc.description.abstractMetrics representative of key ecosystem processes are required for monitoring and understanding system dynamics, as a function of ecosystem-based fisheries management (EBFM). Useful properties of such indicators should include the ability to capture the range of variation in ecosystem responses to a range of pressures, including anthropogenic (e.g. exploitation pressures) and environmental (e.g. climate pressures), as well as indirect effects (e.g. those related to food web processes). Examining modifications in ecological processes induced by structural changes, however, requires caution because of the inherent uncertainty, long feedback times, and highly nonlinear ecosystem responses to external perturbations. Yet trophodynamic indicators are able to capture important changes in marine ecosystem function as community structures have been altered. One promising family of such metrics explores the changing biomass accumulation in the middle trophic levels (TLs) of marine ecosystems. Here we compared cumulative biomass curves across TLs for a range of northern hemisphere temperate and boreal ecosystems. Our results confirm that sigmoidal patterns are consistent across different ecosystems and, on a broad scale, can be used to detect factors that most influence shifts in the cumulative biomass−TL curves. We conclude that the sigmoidal relationship of biomass accumulation curves over TLs could be another possible indicator useful for the implementation of EBFM.no_NO
dc.language.isoengno_NO
dc.publisherInter-Researchno_NO
dc.subjectmarine ecosystemsno_NO
dc.subjectmarine økosystemerno_NO
dc.subjectenvironmental aspectsno_NO
dc.subjectmiljøforholdno_NO
dc.subjectbiomassno_NO
dc.subjectbiomasseno_NO
dc.titleTrophic-level determinants of biomass accumulation in marine ecosystemsno_NO
dc.typeJournal articleno_NO
dc.typePeer reviewedno_NO
dc.subject.nsiVDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497no_NO
dc.subject.nsiVDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452no_NO
dc.source.pagenumber185-201no_NO
dc.source.volume459no_NO
dc.source.journalMarine Ecology Progress Seriesno_NO
dc.identifier.doihttp://dx.doi.org/10.3354/meps09738


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