A Neurological Comparative Study of the Harp Seal ( Pagophilus groenlandicus) and Harbor Porpoise ( Phocoena phocoena) Brain
Abstract The cetacean brain is well studied. However, few comparisons have been done with other marine mammals. In this study, we compared the harp seal ( Pagophilus groenlandicus ) and the harbor porpoise brain ( Phocoena phocoena ). Stereological methods were applied to compare three areas of inte...
Published in: | The Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology |
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Online Access: | http://dx.doi.org/10.1002/ar.21295 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Far.21295 http://onlinelibrary.wiley.com/wol1/doi/10.1002/ar.21295/fullpdf |
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crwiley:10.1002/ar.21295 2024-06-23T07:53:31+00:00 A Neurological Comparative Study of the Harp Seal ( Pagophilus groenlandicus) and Harbor Porpoise ( Phocoena phocoena) Brain Walløe, Solveig Eriksen, Nina Dabelsteen, Torben Pakkenberg, Bente 2010 http://dx.doi.org/10.1002/ar.21295 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Far.21295 http://onlinelibrary.wiley.com/wol1/doi/10.1002/ar.21295/fullpdf en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor The Anatomical Record volume 293, issue 12, page 2129-2135 ISSN 1932-8486 1932-8494 journal-article 2010 crwiley https://doi.org/10.1002/ar.21295 2024-06-11T04:47:30Z Abstract The cetacean brain is well studied. However, few comparisons have been done with other marine mammals. In this study, we compared the harp seal ( Pagophilus groenlandicus ) and the harbor porpoise brain ( Phocoena phocoena ). Stereological methods were applied to compare three areas of interest: the entire neocortex and two subdivisions of the neocortex, the auditory and visual cortices. The total number of neurons and glial cells in the three regions was estimated. The main results showed that the harbor porpoise have an estimated 14.9 × 10 9 neocortical neurons and 34.8 × 10 9 neocortical glial cells, whereas the harp seal have 6.1 × 10 9 neocortical neurons and 17.5 × 10 9 neocortical glial cells. The harbor porpoise have significantly more neurons and glial cells in the auditory cortex than in the visual cortex, whereas the pattern was opposite for the harp seal. These results are the first to provide estimates of the number of neurons and glial cells in the neocortex of the harp seal and harbor porpoise brain and offer new data to the comparative field of mammalian brain evolution. Anat Rec, 2010. © 2010 Wiley‐Liss, Inc. Article in Journal/Newspaper Harp Seal Pagophilus groenlandicus Phocoena phocoena Wiley Online Library The Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology 293 12 2129 2135 |
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Wiley Online Library |
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English |
description |
Abstract The cetacean brain is well studied. However, few comparisons have been done with other marine mammals. In this study, we compared the harp seal ( Pagophilus groenlandicus ) and the harbor porpoise brain ( Phocoena phocoena ). Stereological methods were applied to compare three areas of interest: the entire neocortex and two subdivisions of the neocortex, the auditory and visual cortices. The total number of neurons and glial cells in the three regions was estimated. The main results showed that the harbor porpoise have an estimated 14.9 × 10 9 neocortical neurons and 34.8 × 10 9 neocortical glial cells, whereas the harp seal have 6.1 × 10 9 neocortical neurons and 17.5 × 10 9 neocortical glial cells. The harbor porpoise have significantly more neurons and glial cells in the auditory cortex than in the visual cortex, whereas the pattern was opposite for the harp seal. These results are the first to provide estimates of the number of neurons and glial cells in the neocortex of the harp seal and harbor porpoise brain and offer new data to the comparative field of mammalian brain evolution. Anat Rec, 2010. © 2010 Wiley‐Liss, Inc. |
format |
Article in Journal/Newspaper |
author |
Walløe, Solveig Eriksen, Nina Dabelsteen, Torben Pakkenberg, Bente |
spellingShingle |
Walløe, Solveig Eriksen, Nina Dabelsteen, Torben Pakkenberg, Bente A Neurological Comparative Study of the Harp Seal ( Pagophilus groenlandicus) and Harbor Porpoise ( Phocoena phocoena) Brain |
author_facet |
Walløe, Solveig Eriksen, Nina Dabelsteen, Torben Pakkenberg, Bente |
author_sort |
Walløe, Solveig |
title |
A Neurological Comparative Study of the Harp Seal ( Pagophilus groenlandicus) and Harbor Porpoise ( Phocoena phocoena) Brain |
title_short |
A Neurological Comparative Study of the Harp Seal ( Pagophilus groenlandicus) and Harbor Porpoise ( Phocoena phocoena) Brain |
title_full |
A Neurological Comparative Study of the Harp Seal ( Pagophilus groenlandicus) and Harbor Porpoise ( Phocoena phocoena) Brain |
title_fullStr |
A Neurological Comparative Study of the Harp Seal ( Pagophilus groenlandicus) and Harbor Porpoise ( Phocoena phocoena) Brain |
title_full_unstemmed |
A Neurological Comparative Study of the Harp Seal ( Pagophilus groenlandicus) and Harbor Porpoise ( Phocoena phocoena) Brain |
title_sort |
neurological comparative study of the harp seal ( pagophilus groenlandicus) and harbor porpoise ( phocoena phocoena) brain |
publisher |
Wiley |
publishDate |
2010 |
url |
http://dx.doi.org/10.1002/ar.21295 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Far.21295 http://onlinelibrary.wiley.com/wol1/doi/10.1002/ar.21295/fullpdf |
genre |
Harp Seal Pagophilus groenlandicus Phocoena phocoena |
genre_facet |
Harp Seal Pagophilus groenlandicus Phocoena phocoena |
op_source |
The Anatomical Record volume 293, issue 12, page 2129-2135 ISSN 1932-8486 1932-8494 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ar.21295 |
container_title |
The Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology |
container_volume |
293 |
container_issue |
12 |
container_start_page |
2129 |
op_container_end_page |
2135 |
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1802645241018187776 |