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dc.contributor.authorBoersch-Supan, Philipp H.
dc.contributor.authorRogers, Alex D.
dc.contributor.authorBrierley, Andrew S.
dc.identifier.citationBoersch-Supan , P H , Rogers , A D & Brierley , A S 2017 , ' The distribution of pelagic sound scattering layers across the southwest Indian Ocean ' , Deep Sea Research Part II: Topical Studies in Oceanography , vol. 136 , pp. 108-121 .
dc.identifier.otherPURE: 202514612
dc.identifier.otherPURE UUID: f047814c-a8c2-4032-ad66-d9ea58609e2c
dc.identifier.otherRIS: urn:3E58AB0097A36551057D0E808916C393
dc.identifier.otherScopus: 84940094765
dc.identifier.otherORCID: /0000-0002-6438-6892/work/60427330
dc.identifier.otherWOS: 000395228700009
dc.descriptionShip of Opportunity Data were sourced from the Integrated Marine Observing System (IMOS)—an initiative of the Australian Government being conducted as part of the National Collaborative Research Infrastructure Strategy and the Super Science Initiative. Other acoustic data were collected as part of the Southwest Indian Ocean Seamounts Project ( which was supported supported by the EAF Nansen Project, the Food and Agriculture Organization of the United Nations, the Global Environment Facility, the International Union for the Conservation of Nature, the Natural Environment Research Council (Grant NE/F005504/1), the Leverhulme Trust (Grant F00390C) and the Total Foundation. We thank the Masters, officers, crews and science parties of cruises DFN 2009-410 and JCO66/67 for their assistance during echosounder calibration and data acquisition, and two anonymous reviewers for their comments. PHBS was supported by the German National Academic Foundation, a Cusanuswerk doctoral fellowship, and a Lesley & Charles Hilton-Brown Scholarship.en
dc.description.abstractShallow and deep scattering layers (SLs) were surveyed with split-beam echosounders across the southwest Indian Ocean (SWIO) to investigate their vertical and geographical distribution. Cluster analysis was employed to objectively classify vertical backscatter profiles. Correlations between backscatter and environmental covariates were modelled using generalized additive mixed models (GAMMs) with spatial error structures. Structurally distinct SL regimes were found across the Subantarctic Front. GAMMs indicated a close relationship between sea surface temperature and mean volume backscatter, with significantly elevated backscatter in the subtropical convergence zone. The heterogeneous distribution of scattering layer biota reflects the biogeographic zonation of the survey area and is likely to have implications for predator foraging and carbon cycling in the Indian Ocean.
dc.relation.ispartofDeep Sea Research Part II: Topical Studies in Oceanographyen
dc.rightsCopyright © 2015 Elsevier Ltd. All rights reserved. This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at
dc.subjectScattering layersen
dc.subjectVertical profilesen
dc.subjectQH301 Biologyen
dc.titleThe distribution of pelagic sound scattering layers across the southwest Indian Oceanen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Biologyen
dc.contributor.institutionUniversity of St Andrews. Marine Alliance for Science & Technology Scotlanden
dc.contributor.institutionUniversity of St Andrews. Scottish Oceans Instituteen
dc.contributor.institutionUniversity of St Andrews. Centre for Research into Ecological & Environmental Modellingen
dc.contributor.institutionUniversity of St Andrews. Pelagic Ecology Research Groupen
dc.description.statusPeer revieweden

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