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dc.contributor.authorHerbig, Jennifer
dc.contributor.authorFisher, Jonathan
dc.contributor.authorBouchard, Caroline
dc.contributor.authorNiemi, Andrea
dc.contributor.authorLeBlanc, Mathieu
dc.contributor.authorMajewski, Andrew
dc.contributor.authorGauthier, Stéphane
dc.contributor.authorGeoffroy, Maxime
dc.date.accessioned2023-11-13T08:55:47Z
dc.date.available2023-11-13T08:55:47Z
dc.date.issued2023-09-22
dc.description.abstractArctic cod (Boreogadus saida) is the most abundant forage fish species in Arctic seas and plays a pivotal role in the transfer of energy between zooplankton and top predators. The dominance of Arctic cod and the Arctic’s relatively low biodiversity interact such that changing population dynamics of Arctic cod have cascading effects on whole Arctic marine ecosystems. Over the last decades, warming in the Arctic has led to a decline in Arctic cod populations in the Barents Sea, but in the Canadian Arctic these conditions have been correlated with up to a 10-fold higher biomass of age-0 Arctic cod at the end of summer. However, whether this enhanced larval survival with warmer waters endures through age-1þ populations is unknown. A better understanding of spatial variation in the response of Arctic cod populations to environmental conditions is critical to forecast future changes in Arctic ecosystems. Here, we rely on a 17-year time series of acoustic-trawl surveys (2003–2019) to test whether ice-breakup date, sea surface temperature, zooplankton density, and Arctic climate indices during early life stages affect the subsequent recruitment of age-1þ Arctic cod in the Beaufort Sea and Baffin Bay. In the Beaufort Sea, the biomass of age-1þ Arctic cod correlated with both Arctic Oscillation indices and age-0 biomass of the previous year. In Baffin Bay, the biomass of age-1þ Arctic cod correlated with previous-year North Atlantic Oscillation indices and the timing of ice breakup. This study demonstrates that climate and environmental conditions experienced during the early life stages drive the recruitment of the age-1þ Arctic cod population and helps to quantify spatial variation in the main environmental drivers.en_US
dc.identifier.citationHerbig J, Fisher, Bouchard C, Niemi A, LeBlanc M, Majewski A, Gauthier S, Geoffroy M. Climate and juvenile recruitment as drivers of Arctic cod (Boreogadus saida) dynamics in two Canadian Arctic seas. Elementa: Science of the Anthropocene. 2023;11(1)en_US
dc.identifier.cristinIDFRIDAID 2195029
dc.identifier.doi10.1525/elementa.2023.00033
dc.identifier.issn2325-1026
dc.identifier.urihttps://hdl.handle.net/10037/31726
dc.language.isoengen_US
dc.publisherUniversity of California Pressen_US
dc.relation.journalElementa: Science of the Anthropocene
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2023 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)en_US
dc.titleClimate and juvenile recruitment as drivers of Arctic cod (Boreogadus saida) dynamics in two Canadian Arctic seasen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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Attribution 4.0 International (CC BY 4.0)
Except where otherwise noted, this item's license is described as Attribution 4.0 International (CC BY 4.0)