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dc.contributor.authorSchaber, Matthias
dc.contributor.authorGastauer, Sven
dc.contributor.authorCisewski, Boris
dc.contributor.authorHielscher, Nicole
dc.contributor.authorJanke, Michael
dc.contributor.authorPeña, Marian
dc.contributor.authorSakinan, Serdar
dc.contributor.authorThorburn, James
dc.identifier.citationSchaber , M , Gastauer , S , Cisewski , B , Hielscher , N , Janke , M , Peña , M , Sakinan , S & Thorburn , J 2022 , ' Extensive oceanic mesopelagic habitat use of a migratory continental shark species ' , Scientific Reports , vol. 12 , 2047 .
dc.identifier.otherPURE: 277877299
dc.identifier.otherPURE UUID: 504497fe-0106-4243-9661-9be26da4b319
dc.identifier.otherJisc: 54180
dc.identifier.otherpublisher-id: s41598-022-05989-z
dc.identifier.othermanuscript: 5989
dc.identifier.otherWOS: 000756804500040
dc.identifier.otherScopus: 85124305981
dc.descriptionOpen Access funding enabled and organized by Projekt DEAL.en
dc.description.abstractThe identification of movement and behaviour patterns, as well as inter- and intra-population connectivity is crucial in order to implement effective and functional management and conservation measures for threatened migratory species such as tope (Galeorhinus galeus). Yet, previous studies struggled to elucidate clear and consistent movement and depth usage patterns of adult tope in the Northeast Atlantic, suggesting a high plasticity in the migration and behaviour. We deployed pop-up satellite archival tags on adult tope during their seasonal summer aggregations in the inner German Bight of the south-eastern North Sea and near a presumed mating site in southwest Scotland. Depth distribution and migration pathways were derived from time series data with location processing. Four individuals followed migration trajectories leaving coastal areas and crossed the European shelf slope into oceanic areas of the Northeast Atlantic, remaining fully pelagic for the rest of the deployment duration. These sharks showed far-ranging migration trajectories and undertook regular and frequent diel vertical migrations, reaching daytime depths of over 700 m. Vertical migration patterns closely overlapped with biological mesopelagic habitat structures and closely tracked the diel migration of organisms from deep scattering layers derived from hydroacoustic recordings. It is hypothesized that adult tope regularly utilize oceanic habitats, foraging on mesopelagic layers in an environment generally considered of low prey density.
dc.relation.ispartofScientific Reportsen
dc.rightsCopyright © The Author(s) 2022. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.en
dc.subjectGC Oceanographyen
dc.subjectQH301 Biologyen
dc.titleExtensive oceanic mesopelagic habitat use of a migratory continental shark speciesen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Biologyen
dc.contributor.institutionUniversity of St Andrews. Coastal Resources Management Groupen
dc.description.statusPeer revieweden

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