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Shining new light on mammalian diving physiology using wearable near-infrared spectroscopy
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dc.contributor.author | McKnight, J. Chris | |
dc.contributor.author | Bennett, Kimberley | |
dc.contributor.author | Bronkhorst, Mathijs | |
dc.contributor.author | Russell, Debbie JF | |
dc.contributor.author | Balfour, Steve | |
dc.contributor.author | Milne, Ryan | |
dc.contributor.author | Bivins, Matt | |
dc.contributor.author | Moss, Simon | |
dc.contributor.author | Colier, Willy | |
dc.contributor.author | Hall, Ailsa J. | |
dc.contributor.author | Thompson, Dave | |
dc.date.accessioned | 2019-06-20T16:30:07Z | |
dc.date.available | 2019-06-20T16:30:07Z | |
dc.date.issued | 2019-06-18 | |
dc.identifier | 259034631 | |
dc.identifier | 4fbf26eb-26f7-4e9c-83e5-5b20ee990e02 | |
dc.identifier | 000473675900027 | |
dc.identifier | 85068460101 | |
dc.identifier.citation | McKnight , J C , Bennett , K , Bronkhorst , M , Russell , D JF , Balfour , S , Milne , R , Bivins , M , Moss , S , Colier , W , Hall , A J & Thompson , D 2019 , ' Shining new light on mammalian diving physiology using wearable near-infrared spectroscopy ' , PLoS Biology , vol. 17 , no. 6 , e3000306 . https://doi.org/10.1371/journal.pbio.3000306 | en |
dc.identifier.issn | 1544-9173 | |
dc.identifier.other | ORCID: /0000-0002-1969-102X/work/58755451 | |
dc.identifier.other | ORCID: /0000-0002-7562-1771/work/58755460 | |
dc.identifier.other | ORCID: /0000-0003-1546-2876/work/58755465 | |
dc.identifier.other | ORCID: /0000-0002-3872-4886/work/58755543 | |
dc.identifier.uri | https://hdl.handle.net/10023/17936 | |
dc.description | Funding: National Environmental Research Council National Capability funding to the Sea Mammal Research Unit (grant no. SMRU1001), Sea Mammal Research Unit Consulting (10 year anniversary award). | en |
dc.description.abstract | Investigation of marine mammal dive-by-dive blood distribution and oxygenation has been limited by a lack of non-invasive technology for use in freely diving animals. Here, we developed a non-invasive near-infrared spectroscopy (NIRS) device to measure relative changes in blood volume and haemoglobin oxygenation continuously in the blubber and brain of voluntarily diving harbour seals. Our results show that seals routinely exhibit preparatory peripheral vasoconstriction accompanied by increased cerebral blood volume approximately 15 s before submersion. These anticipatory adjustments confirm that blood redistribution in seals is under some degree of cognitive control that precedes the mammalian dive response. Seals also routinely increase cerebral oxygenation at a consistent time during each dive, despite a lack of access to ambient air. We suggest that this frequent and reproducible reoxygenation pattern, without access to ambient air, is underpinned by previously unrecognised changes in cerebral drainage. The ability to track blood volume and oxygenation in different tissues using NIRS will facilitate a more accurate understanding of physiological plasticity in diving animals in an increasingly disturbed and exploited environment. | |
dc.format.extent | 20 | |
dc.format.extent | 2398814 | |
dc.language.iso | eng | |
dc.relation.ispartof | PLoS Biology | en |
dc.subject | QH301 Biology | en |
dc.subject | DAS | en |
dc.subject | BDC | en |
dc.subject | R2C | en |
dc.subject | SDG 14 - Life Below Water | en |
dc.subject.lcc | QH301 | en |
dc.title | Shining new light on mammalian diving physiology using wearable near-infrared spectroscopy | en |
dc.type | Journal article | en |
dc.contributor.sponsor | NERC | en |
dc.contributor.institution | University of St Andrews. School of Biology | en |
dc.contributor.institution | University of St Andrews. Sea Mammal Research Unit | en |
dc.contributor.institution | University of St Andrews. Marine Alliance for Science & Technology Scotland | en |
dc.contributor.institution | University of St Andrews. Scottish Oceans Institute | en |
dc.contributor.institution | University of St Andrews. Centre for Research into Ecological & Environmental Modelling | en |
dc.identifier.doi | https://doi.org/10.1371/journal.pbio.3000306 | |
dc.description.status | Peer reviewed | en |
dc.identifier.grantnumber | Agreement R8-H12-86 | en |
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