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Multifarious anchovy and sardine regimes in the Humboldt Current System during the last 150 years

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dc.contributor.author Salvatteci, Renato
dc.contributor.author Field, David
dc.contributor.author Gutiérrez, Dimitri
dc.contributor.author Baumgartner, Tim
dc.contributor.author Ferreira, Vicente
dc.contributor.author Ortlieb, Luc
dc.contributor.author Sifeddine, Abdel
dc.contributor.author Grados, Daniel
dc.contributor.author Bertrand, Arnaud
dc.date.accessioned 2018-11-30T17:17:16Z
dc.date.available 2018-11-30T17:17:16Z
dc.date.issued 2018
dc.identifier.uri https://hdl.handle.net/20.500.12866/4130
dc.description.abstract The Humboldt Current System (HCS) has the highest production of forage fish in the world, although it is highly variable and the future of the primary component, anchovy, is uncertain in the context of global warming. Paradigms based on late 20th century observations suggest that large-scale forcing controls decadal-scale fluctuations of anchovy and sardine across different boundary currents of the Pacific. We develop records of anchovy and sardine fluctuations since 1860 AD using fish scales from multiple sites containing laminated sediments and compare them with Pacific basin-scale and regional indices of ocean climate variability. Our records reveal two main anchovy and sardine phases with a timescale that is not consistent with previously proposed periodicities. Rather, the regime shifts in the HCS are related to 3D habitat changes driven by changes in upwelling intensity from both regional and large-scale forcing. Moreover, we show that a long-term increase in coastal upwelling translates via a bottom-up mechanism to top predators suggesting that the warming climate, at least up to the start of the 21st century, was favorable for fishery productivity in the HCS. en_US
dc.language.iso eng
dc.publisher Wiley
dc.relation.ispartof urn:issn:1365-2486
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject climate change en_US
dc.subject Animals en_US
dc.subject 3D habitat en_US
dc.subject anchovy and sardine abundance fluctuations en_US
dc.subject Climate en_US
dc.subject Climate Change en_US
dc.subject Ecosystem en_US
dc.subject Fishes en_US
dc.subject Humboldt Current System en_US
dc.subject Pacific Decadal Oscillation en_US
dc.subject Pacific Ocean en_US
dc.subject Peru-Chile en_US
dc.subject Population Dynamics en_US
dc.subject regime shifts en_US
dc.subject small pelagic fishes en_US
dc.subject upwelling en_US
dc.title Multifarious anchovy and sardine regimes in the Humboldt Current System during the last 150 years en_US
dc.type info:eu-repo/semantics/article
dc.identifier.doi https://doi.org/10.1111/gcb.13991


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