Files in this item
Aerial photogrammetry and tag-derived tissue density reveal patterns of lipid-store body condition of humpback whales on their feeding grounds
Item metadata
dc.contributor.author | Aoki, Kagari | |
dc.contributor.author | Isojunno, Saana | |
dc.contributor.author | Bellot, Charlotte | |
dc.contributor.author | Iwata, Takahashi | |
dc.contributor.author | Kershaw, Joanna Louise | |
dc.contributor.author | Akiyama, Yu | |
dc.contributor.author | Martín López, Lucía Martina | |
dc.contributor.author | Ramp, Christian | |
dc.contributor.author | Biuw, Martin | |
dc.contributor.author | Swift, Rene James | |
dc.contributor.author | Wensveen, Paul | |
dc.contributor.author | Pomeroy, Patrick | |
dc.contributor.author | Narazaki, Tomoko | |
dc.contributor.author | Hall, Ailsa Jane | |
dc.contributor.author | Sato, Katsufumi | |
dc.contributor.author | Miller, Patrick | |
dc.date.accessioned | 2021-02-01T13:30:02Z | |
dc.date.available | 2021-02-01T13:30:02Z | |
dc.date.issued | 2021-01-27 | |
dc.identifier | 267454006 | |
dc.identifier | 9f41fe0f-5e05-476c-8b6f-d1992e976442 | |
dc.identifier | 85100477627 | |
dc.identifier | 000613752100009 | |
dc.identifier.citation | Aoki , K , Isojunno , S , Bellot , C , Iwata , T , Kershaw , J L , Akiyama , Y , Martín López , L M , Ramp , C , Biuw , M , Swift , R J , Wensveen , P , Pomeroy , P , Narazaki , T , Hall , A J , Sato , K & Miller , P 2021 , ' Aerial photogrammetry and tag-derived tissue density reveal patterns of lipid-store body condition of humpback whales on their feeding grounds ' , Proceedings of the Royal Society of London Series B: Biological Sciences , vol. 288 , no. 1943 , 20202307 . https://doi.org/10.1098/rspb.2020.2307 | en |
dc.identifier.issn | 0962-8452 | |
dc.identifier.other | ORCID: /0000-0003-1603-5630/work/88267114 | |
dc.identifier.other | ORCID: /0000-0002-2212-2135/work/88267267 | |
dc.identifier.other | ORCID: /0000-0002-7562-1771/work/88267315 | |
dc.identifier.other | ORCID: /0000-0003-2984-8606/work/88267522 | |
dc.identifier.uri | https://hdl.handle.net/10023/21353 | |
dc.description | This work was supported by the SERDP award (grant no. RC-2337). Additional support for fieldwork was provided by the US Office of Naval Research under the 3S collaborative research project. Analysis and writing were partly supported by the Grant-in-Aid for Young Scientists B (grant no. 17K12813), The Mitsui & Co. Environment Fund (grant no. R16-0044), JSPS Bilateral Open Partnership Joint Research Projects and NERC National Capability funding. | en |
dc.description.abstract | Monitoring the body condition of free-ranging marine mammals at different life-history stages is essential to understand their ecology as they must accumulate sufficient energy reserves for survival and reproduction. However, assessing body condition in free-ranging marine mammals is challenging. We cross-validated two independent approaches to estimate the body condition of humpback whales (Megaptera novaeangliae) at two feeding grounds in Canada and Norway: animal-borne tags (n = 59) and aerial photogrammetry (n = 55). Whales that had a large length-standardized projected area in overhead images (i.e. whales looked fatter) had lower estimated tissue body density (TBD) (greater lipid stores) from tag data. Linking both measurements in a Bayesian hierarchical model to estimate the true underlying (hidden) tissue body density (uTBD), we found uTBD was lower (−3.5 kg m−3) in pregnant females compared to adult males and resting females, while in lactating females it was higher (+6.0 kg m−3). Whales were more negatively buoyant (+5.0 kg m−3) in Norway than Canada during the early feeding season, possibly owing to a longer migration from breeding areas. While uTBD decreased over the feeding season across life-history traits, whale tissues remained negatively buoyant (1035.3 ± 3.8 kg m−3) in the late feeding season. This study adds confidence to the effectiveness of these independent methods to estimate the body condition of free-ranging whales. | |
dc.format.extent | 10 | |
dc.format.extent | 1930971 | |
dc.language.iso | eng | |
dc.relation.ispartof | Proceedings of the Royal Society of London Series B: Biological Sciences | en |
dc.subject | Tissue body density | en |
dc.subject | UAV | en |
dc.subject | Feeding season | en |
dc.subject | Animal-borne sensor | en |
dc.subject | Neutral buoyancy | en |
dc.subject | Cetacean | en |
dc.subject | QH301 Biology | en |
dc.subject | DAS | en |
dc.subject | SDG 14 - Life Below Water | en |
dc.subject.lcc | QH301 | en |
dc.title | Aerial photogrammetry and tag-derived tissue density reveal patterns of lipid-store body condition of humpback whales on their feeding grounds | en |
dc.type | Journal article | en |
dc.contributor.institution | University of St Andrews. Sea Mammal Research Unit | en |
dc.contributor.institution | University of St Andrews. School of Biology | 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.contributor.institution | University of St Andrews. Marine Alliance for Science & Technology Scotland | en |
dc.contributor.institution | University of St Andrews. Institute of Behavioural and Neural Sciences | en |
dc.contributor.institution | University of St Andrews. Centre for Social Learning & Cognitive Evolution | en |
dc.contributor.institution | University of St Andrews. Bioacoustics group | en |
dc.identifier.doi | 10.1098/rspb.2020.2307 | |
dc.description.status | Peer reviewed | en |
This item appears in the following Collection(s)
Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.