Computed Tomography as a Method for Age Determination of Carnivora and Odontocetes with Validation from Individuals with Known Age
Traditional methods for age determination of wildlife include either slicing thin sections off or grinding a tooth, both of which are laborious and invasive. Especially when it comes to ancient and valuable museum samples of rare or extinct species, non-invasive methods are preferable. In this study...
Published in: | Animals |
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Main Authors: | , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2023
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Online Access: | https://vbn.aau.dk/da/publications/c08c6dea-875e-4d56-b095-842981a5f435 https://doi.org/10.3390/ani13111783 https://vbn.aau.dk/ws/files/538892126/animals-13-01783-v4.pdf http://www.scopus.com/inward/record.url?scp=85161906482&partnerID=8YFLogxK |
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ftalborgunivpubl:oai:pure.atira.dk:publications/c08c6dea-875e-4d56-b095-842981a5f435 2024-06-23T07:56:11+00:00 Computed Tomography as a Method for Age Determination of Carnivora and Odontocetes with Validation from Individuals with Known Age Baier-Stegmaier, Sina Gundlach, Carsten Chriél, Mariann Hansen, Mette Sif Vedel-Smith, Christina Hansen, Charlotte Vikkelsø Johansson, Daniel Klingberg Henriksen, Louise Birgitte Wahlberg, Magnus Thøstesen, Charlotte Bie Alstrup, Aage Kristian Olsen Gregersen, Kristian Murphy Pertoldi, Cino Pagh, Sussie 2023-06 application/pdf https://vbn.aau.dk/da/publications/c08c6dea-875e-4d56-b095-842981a5f435 https://doi.org/10.3390/ani13111783 https://vbn.aau.dk/ws/files/538892126/animals-13-01783-v4.pdf http://www.scopus.com/inward/record.url?scp=85161906482&partnerID=8YFLogxK eng eng https://vbn.aau.dk/da/publications/c08c6dea-875e-4d56-b095-842981a5f435 info:eu-repo/semantics/openAccess Baier-Stegmaier , S , Gundlach , C , Chriél , M , Hansen , M S , Vedel-Smith , C , Hansen , C V , Johansson , D K , Henriksen , L B , Wahlberg , M , Thøstesen , C B , Alstrup , A K O , Gregersen , K M , Pertoldi , C & Pagh , S 2023 , ' Computed Tomography as a Method for Age Determination of Carnivora and Odontocetes with Validation from Individuals with Known Age ' , Animals , vol. 13 , no. 11 , 1783 . https://doi.org/10.3390/ani13111783 American mink carnivore age computed tomography harbor porpoise micro-CT museum collections Neogale vison Phocoena phocoena red fox toothed whale age Vulpes vulpes X-ray µ-CT article 2023 ftalborgunivpubl https://doi.org/10.3390/ani13111783 2024-06-10T15:25:03Z Traditional methods for age determination of wildlife include either slicing thin sections off or grinding a tooth, both of which are laborious and invasive. Especially when it comes to ancient and valuable museum samples of rare or extinct species, non-invasive methods are preferable. In this study, X-ray micro-computed tomography (µ-CT) was verified as an alternative non-invasive method for age determination of three species within the order of Carnivora and suborders Odontoceti. Teeth from 13 red foxes (Vulpes vulpes), 2 American mink (Neogale vison), and 2 harbor porpoises (Phocoena phocoena) of known age were studied using µ-CT. The number of visible dental growth layers in the µ-CT were highly correlated with true age for all three species (R 2 = 96%, p < 0.001). In addition, the Bland–Altman plot showed high agreement between the age of individuals and visible dental layers represented in 2D slices of the 3D µ-CT images. The true age of individuals was on average 0.3 (±0.6 SD) years higher than the age interpreted by the µ-CT image, and there was a 95% agreement between the true age and the age interpreted from visible dental layers in the µ-CT. Article in Journal/Newspaper Phocoena phocoena toothed whale Aalborg University's Research Portal Animals 13 11 1783 |
institution |
Open Polar |
collection |
Aalborg University's Research Portal |
op_collection_id |
ftalborgunivpubl |
language |
English |
topic |
American mink carnivore age computed tomography harbor porpoise micro-CT museum collections Neogale vison Phocoena phocoena red fox toothed whale age Vulpes vulpes X-ray µ-CT |
spellingShingle |
American mink carnivore age computed tomography harbor porpoise micro-CT museum collections Neogale vison Phocoena phocoena red fox toothed whale age Vulpes vulpes X-ray µ-CT Baier-Stegmaier, Sina Gundlach, Carsten Chriél, Mariann Hansen, Mette Sif Vedel-Smith, Christina Hansen, Charlotte Vikkelsø Johansson, Daniel Klingberg Henriksen, Louise Birgitte Wahlberg, Magnus Thøstesen, Charlotte Bie Alstrup, Aage Kristian Olsen Gregersen, Kristian Murphy Pertoldi, Cino Pagh, Sussie Computed Tomography as a Method for Age Determination of Carnivora and Odontocetes with Validation from Individuals with Known Age |
topic_facet |
American mink carnivore age computed tomography harbor porpoise micro-CT museum collections Neogale vison Phocoena phocoena red fox toothed whale age Vulpes vulpes X-ray µ-CT |
description |
Traditional methods for age determination of wildlife include either slicing thin sections off or grinding a tooth, both of which are laborious and invasive. Especially when it comes to ancient and valuable museum samples of rare or extinct species, non-invasive methods are preferable. In this study, X-ray micro-computed tomography (µ-CT) was verified as an alternative non-invasive method for age determination of three species within the order of Carnivora and suborders Odontoceti. Teeth from 13 red foxes (Vulpes vulpes), 2 American mink (Neogale vison), and 2 harbor porpoises (Phocoena phocoena) of known age were studied using µ-CT. The number of visible dental growth layers in the µ-CT were highly correlated with true age for all three species (R 2 = 96%, p < 0.001). In addition, the Bland–Altman plot showed high agreement between the age of individuals and visible dental layers represented in 2D slices of the 3D µ-CT images. The true age of individuals was on average 0.3 (±0.6 SD) years higher than the age interpreted by the µ-CT image, and there was a 95% agreement between the true age and the age interpreted from visible dental layers in the µ-CT. |
format |
Article in Journal/Newspaper |
author |
Baier-Stegmaier, Sina Gundlach, Carsten Chriél, Mariann Hansen, Mette Sif Vedel-Smith, Christina Hansen, Charlotte Vikkelsø Johansson, Daniel Klingberg Henriksen, Louise Birgitte Wahlberg, Magnus Thøstesen, Charlotte Bie Alstrup, Aage Kristian Olsen Gregersen, Kristian Murphy Pertoldi, Cino Pagh, Sussie |
author_facet |
Baier-Stegmaier, Sina Gundlach, Carsten Chriél, Mariann Hansen, Mette Sif Vedel-Smith, Christina Hansen, Charlotte Vikkelsø Johansson, Daniel Klingberg Henriksen, Louise Birgitte Wahlberg, Magnus Thøstesen, Charlotte Bie Alstrup, Aage Kristian Olsen Gregersen, Kristian Murphy Pertoldi, Cino Pagh, Sussie |
author_sort |
Baier-Stegmaier, Sina |
title |
Computed Tomography as a Method for Age Determination of Carnivora and Odontocetes with Validation from Individuals with Known Age |
title_short |
Computed Tomography as a Method for Age Determination of Carnivora and Odontocetes with Validation from Individuals with Known Age |
title_full |
Computed Tomography as a Method for Age Determination of Carnivora and Odontocetes with Validation from Individuals with Known Age |
title_fullStr |
Computed Tomography as a Method for Age Determination of Carnivora and Odontocetes with Validation from Individuals with Known Age |
title_full_unstemmed |
Computed Tomography as a Method for Age Determination of Carnivora and Odontocetes with Validation from Individuals with Known Age |
title_sort |
computed tomography as a method for age determination of carnivora and odontocetes with validation from individuals with known age |
publishDate |
2023 |
url |
https://vbn.aau.dk/da/publications/c08c6dea-875e-4d56-b095-842981a5f435 https://doi.org/10.3390/ani13111783 https://vbn.aau.dk/ws/files/538892126/animals-13-01783-v4.pdf http://www.scopus.com/inward/record.url?scp=85161906482&partnerID=8YFLogxK |
genre |
Phocoena phocoena toothed whale |
genre_facet |
Phocoena phocoena toothed whale |
op_source |
Baier-Stegmaier , S , Gundlach , C , Chriél , M , Hansen , M S , Vedel-Smith , C , Hansen , C V , Johansson , D K , Henriksen , L B , Wahlberg , M , Thøstesen , C B , Alstrup , A K O , Gregersen , K M , Pertoldi , C & Pagh , S 2023 , ' Computed Tomography as a Method for Age Determination of Carnivora and Odontocetes with Validation from Individuals with Known Age ' , Animals , vol. 13 , no. 11 , 1783 . https://doi.org/10.3390/ani13111783 |
op_relation |
https://vbn.aau.dk/da/publications/c08c6dea-875e-4d56-b095-842981a5f435 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3390/ani13111783 |
container_title |
Animals |
container_volume |
13 |
container_issue |
11 |
container_start_page |
1783 |
_version_ |
1802649130434035712 |