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dc.contributor.authorDong, Huizi
dc.contributor.authorZhou, Meng
dc.contributor.authorHu, Ziyuan
dc.contributor.authorZhang, Zhaoru
dc.contributor.authorZhong, Yisen
dc.contributor.authorBasedow, Sünnje Linnéa
dc.contributor.authorSmith Jr., Walker O.
dc.date.accessioned2021-08-19T11:46:20Z
dc.date.available2021-08-19T11:46:20Z
dc.date.issued2021-08-02
dc.description.abstractLarge aggregations of the copepod Calanus finmarchicus occur each spring in the shelf-slope-oceanic regions off the Lofoten-Vesterålen Islands where productive fisheries have traditionally supported local economies. The retention and off-shelf transport of populations of C. finmarchicus populations were studied by analyzing ocean color remote sensing, satellite altimetry data, and Lagrangian Coherent Structures (LCS) between 2010 and 2019. Our analysis revealed the existence of a transport barrier reoccurring at the shelf break that retains C. finmarchicus on the shelf for 30–70 days in the spring when C. finmarchicus were seasonally ascending to the surface layer. The analysis of baroclinic and barotropic energy conversions indicated that the topographically steered Norwegian Atlantic Current is the primary mechanism in the formation of the transport barrier, which restricts exchanges of C. finmarchicus populations between shelf and oceanic waters. In the mid- to late April, an increase in baroclinicity leads to an increase in mesoscale eddies generated on the shelf break near Lofoten-Vesterålen Islands, breaking down transport barriers and causing off-shelf transport of C. finmarchicus. The transport barrier predictably reoccurs in early spring which supports the entrapment of C. finmarchicus in the shelf region.en_US
dc.identifier.citationDong, Zhou M, Hu Z, Zhang Z, Zhong Y, Basedow SL, Smith Jr. WO. Transport Barriers and the Retention of Calanus finmarchicus on the Lofoten Shelf in Early Spring. Journal of Geophysical Research (JGR): Oceans. 2021en_US
dc.identifier.cristinIDFRIDAID 1926986
dc.identifier.doi10.1029/2021JC017408
dc.identifier.issn2169-9275
dc.identifier.issn2169-9291
dc.identifier.urihttps://hdl.handle.net/10037/22143
dc.language.isoengen_US
dc.publisherWileyen_US
dc.relation.journalJournal of Geophysical Research (JGR): Oceans
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/MARINFORSK/ 287043/Norway/Collaborative Studies of Two Resource Ecosystems in Shelf, Slope and Oceanic Regions of the Norwegian and South-China Seas//en_US
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2021 The Author(s)en_US
dc.subjectVDP::Mathematics and natural science: 400::Zoology and botany: 480en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480en_US
dc.titleTransport Barriers and the Retention of Calanus finmarchicus on the Lofoten Shelf in Early Springen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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