A review of age estimation methods in marine mammals with special reference to monodontids
This paper presents a critical review of methods for estimating absolute or relative age in marine mammals. Absolute age is achieved by counting growth layer groups (GLGs) in hard structures such as teeth, ear plugs, baleen, bones and claws. Relative age can be obtained by methods such as aspartic a...
| Published in: | NAMMCO Scientific Publications |
|---|---|
| Main Authors: | , , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Septentrio Academic Publishing
2018
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| Subjects: | |
| Online Access: | https://septentrio.uit.no/index.php/NAMMCOSP/article/view/4474 https://doi.org/10.7557/3.4474 |
| _version_ | 1821868440968757248 |
|---|---|
| author | Read, Fiona L. Hohn, Aleta A. Lockyer, Christina H. |
| author_facet | Read, Fiona L. Hohn, Aleta A. Lockyer, Christina H. |
| author_sort | Read, Fiona L. |
| collection | University of Tromsø: Septentrio Academic Publishing |
| container_title | NAMMCO Scientific Publications |
| container_volume | 10 |
| description | This paper presents a critical review of methods for estimating absolute or relative age in marine mammals. Absolute age is achieved by counting growth layer groups (GLGs) in hard structures such as teeth, ear plugs, baleen, bones and claws. Relative age can be obtained by methods such as aspartic acid racemisation, genetic telomeres, bone mineral density, fatty acid signatures and other methods. Each method is discussed in detail. Accuracy and precision, including inter-reader calibration and anomalies, as well as methods of validating GLG deposition rates are also addressed. Each section concludes with methods of age estimation applicable to monodontids, and suggestions on the focus of future age-estimation research. |
| format | Article in Journal/Newspaper |
| genre | Beluga Beluga* Delphinapterus leucas Monodon monoceros narwhal* |
| genre_facet | Beluga Beluga* Delphinapterus leucas Monodon monoceros narwhal* |
| id | ftunitroemsoe:oai:ojs.henry.ub.uit.no:article/4474 |
| institution | Open Polar |
| language | English |
| op_collection_id | ftunitroemsoe |
| op_doi | https://doi.org/10.7557/3.4474 https://doi.org/10.7557/3.10 |
| op_relation | https://septentrio.uit.no/index.php/NAMMCOSP/article/view/4474/4086 https://septentrio.uit.no/index.php/NAMMCOSP/article/view/4474 doi:10.7557/3.4474 |
| op_rights | Copyright (c) 2018 Fiona L. Read, Aleta A. Hohn, Christina H. Lockyer http://creativecommons.org/licenses/by/3.0/ |
| op_rightsnorm | CC-BY |
| op_source | NAMMCO Scientific Publications; Vol 10: Age estimation of marine mammals with a focus on monodontids 2309-2491 1560-2206 10.7557/3.10 |
| publishDate | 2018 |
| publisher | Septentrio Academic Publishing |
| record_format | openpolar |
| spelling | ftunitroemsoe:oai:ojs.henry.ub.uit.no:article/4474 2025-01-16T21:15:18+00:00 A review of age estimation methods in marine mammals with special reference to monodontids Read, Fiona L. Hohn, Aleta A. Lockyer, Christina H. 2018-07-19 application/pdf https://septentrio.uit.no/index.php/NAMMCOSP/article/view/4474 https://doi.org/10.7557/3.4474 eng eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/NAMMCOSP/article/view/4474/4086 https://septentrio.uit.no/index.php/NAMMCOSP/article/view/4474 doi:10.7557/3.4474 Copyright (c) 2018 Fiona L. Read, Aleta A. Hohn, Christina H. Lockyer http://creativecommons.org/licenses/by/3.0/ CC-BY NAMMCO Scientific Publications; Vol 10: Age estimation of marine mammals with a focus on monodontids 2309-2491 1560-2206 10.7557/3.10 marine mammal age estimation ageing monodontid beluga narwhal Delphinapterus leucas Monodon monoceros info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2018 ftunitroemsoe https://doi.org/10.7557/3.4474 https://doi.org/10.7557/3.10 2021-08-16T16:42:48Z This paper presents a critical review of methods for estimating absolute or relative age in marine mammals. Absolute age is achieved by counting growth layer groups (GLGs) in hard structures such as teeth, ear plugs, baleen, bones and claws. Relative age can be obtained by methods such as aspartic acid racemisation, genetic telomeres, bone mineral density, fatty acid signatures and other methods. Each method is discussed in detail. Accuracy and precision, including inter-reader calibration and anomalies, as well as methods of validating GLG deposition rates are also addressed. Each section concludes with methods of age estimation applicable to monodontids, and suggestions on the focus of future age-estimation research. Article in Journal/Newspaper Beluga Beluga* Delphinapterus leucas Monodon monoceros narwhal* University of Tromsø: Septentrio Academic Publishing NAMMCO Scientific Publications 10 |
| spellingShingle | marine mammal age estimation ageing monodontid beluga narwhal Delphinapterus leucas Monodon monoceros Read, Fiona L. Hohn, Aleta A. Lockyer, Christina H. A review of age estimation methods in marine mammals with special reference to monodontids |
| title | A review of age estimation methods in marine mammals with special reference to monodontids |
| title_full | A review of age estimation methods in marine mammals with special reference to monodontids |
| title_fullStr | A review of age estimation methods in marine mammals with special reference to monodontids |
| title_full_unstemmed | A review of age estimation methods in marine mammals with special reference to monodontids |
| title_short | A review of age estimation methods in marine mammals with special reference to monodontids |
| title_sort | review of age estimation methods in marine mammals with special reference to monodontids |
| topic | marine mammal age estimation ageing monodontid beluga narwhal Delphinapterus leucas Monodon monoceros |
| topic_facet | marine mammal age estimation ageing monodontid beluga narwhal Delphinapterus leucas Monodon monoceros |
| url | https://septentrio.uit.no/index.php/NAMMCOSP/article/view/4474 https://doi.org/10.7557/3.4474 |