TAXONOMIC STATUS AND GEOGRAPHICAL CRANIAL VARIATION OF COMMON DOLPHINS ( DELPHINUS) IN THE EASTERN NORTH ATLANTIC

Abstract The common dolphin has a widespread distribution and is relatively abundant in the temperate to subtropical waters of the eastern North Atlantic. However, it is not known whether different species, subspecies, or populations occur in this region. We examined 393 common dolphin skulls obtain...

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Published in:Marine Mammal Science
Main Authors: Murphy, Sinéad, Herman, Jerry S., Pierce, Graham J., Rogan, Emer, Kitchener, Andrew C.
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 2006
Subjects:
Online Access:http://dx.doi.org/10.1111/j.1748-7692.2006.00037.x
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.2006.00037.x
https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.2006.00037.x
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spelling crwiley:10.1111/j.1748-7692.2006.00037.x 2024-06-23T07:54:53+00:00 TAXONOMIC STATUS AND GEOGRAPHICAL CRANIAL VARIATION OF COMMON DOLPHINS ( DELPHINUS) IN THE EASTERN NORTH ATLANTIC Murphy, Sinéad Herman, Jerry S. Pierce, Graham J. Rogan, Emer Kitchener, Andrew C. 2006 http://dx.doi.org/10.1111/j.1748-7692.2006.00037.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.2006.00037.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.2006.00037.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Marine Mammal Science volume 22, issue 3, page 573-599 ISSN 0824-0469 1748-7692 journal-article 2006 crwiley https://doi.org/10.1111/j.1748-7692.2006.00037.x 2024-06-13T04:22:00Z Abstract The common dolphin has a widespread distribution and is relatively abundant in the temperate to subtropical waters of the eastern North Atlantic. However, it is not known whether different species, subspecies, or populations occur in this region. We examined 393 common dolphin skulls obtained from both stranded and bycaught individuals collected between 1901 and 2005. The series included skulls of 152 females and 199 males, from animals ranging in body length from 93 to 230 cm and 105 to 244 cm, respectively. The ranges of total body length, skull size, RL/ZGW ratio and maximum upper alveolar (tooth) count of common dolphins in the eastern North Atlantic overlapped with those of both short‐ ( D. delphis ) and long‐beaked ( D. capensis ) species found off the Californian coast. However, in the absence of additional data, the common dolphin in the eastern North Atlantic is regarded here as a large form of Delphinus delphis . Sexual dimorphism and possible sex‐linked characters were identified within the sample. Results of the current study indicate some population differentiation within the eastern North Atlantic, with common dolphins off Portugal showing segregation in morphometric characteristics from common dolphins in other areas. Article in Journal/Newspaper North Atlantic Wiley Online Library Marine Mammal Science 22 3 573 599
institution Open Polar
collection Wiley Online Library
op_collection_id crwiley
language English
description Abstract The common dolphin has a widespread distribution and is relatively abundant in the temperate to subtropical waters of the eastern North Atlantic. However, it is not known whether different species, subspecies, or populations occur in this region. We examined 393 common dolphin skulls obtained from both stranded and bycaught individuals collected between 1901 and 2005. The series included skulls of 152 females and 199 males, from animals ranging in body length from 93 to 230 cm and 105 to 244 cm, respectively. The ranges of total body length, skull size, RL/ZGW ratio and maximum upper alveolar (tooth) count of common dolphins in the eastern North Atlantic overlapped with those of both short‐ ( D. delphis ) and long‐beaked ( D. capensis ) species found off the Californian coast. However, in the absence of additional data, the common dolphin in the eastern North Atlantic is regarded here as a large form of Delphinus delphis . Sexual dimorphism and possible sex‐linked characters were identified within the sample. Results of the current study indicate some population differentiation within the eastern North Atlantic, with common dolphins off Portugal showing segregation in morphometric characteristics from common dolphins in other areas.
format Article in Journal/Newspaper
author Murphy, Sinéad
Herman, Jerry S.
Pierce, Graham J.
Rogan, Emer
Kitchener, Andrew C.
spellingShingle Murphy, Sinéad
Herman, Jerry S.
Pierce, Graham J.
Rogan, Emer
Kitchener, Andrew C.
TAXONOMIC STATUS AND GEOGRAPHICAL CRANIAL VARIATION OF COMMON DOLPHINS ( DELPHINUS) IN THE EASTERN NORTH ATLANTIC
author_facet Murphy, Sinéad
Herman, Jerry S.
Pierce, Graham J.
Rogan, Emer
Kitchener, Andrew C.
author_sort Murphy, Sinéad
title TAXONOMIC STATUS AND GEOGRAPHICAL CRANIAL VARIATION OF COMMON DOLPHINS ( DELPHINUS) IN THE EASTERN NORTH ATLANTIC
title_short TAXONOMIC STATUS AND GEOGRAPHICAL CRANIAL VARIATION OF COMMON DOLPHINS ( DELPHINUS) IN THE EASTERN NORTH ATLANTIC
title_full TAXONOMIC STATUS AND GEOGRAPHICAL CRANIAL VARIATION OF COMMON DOLPHINS ( DELPHINUS) IN THE EASTERN NORTH ATLANTIC
title_fullStr TAXONOMIC STATUS AND GEOGRAPHICAL CRANIAL VARIATION OF COMMON DOLPHINS ( DELPHINUS) IN THE EASTERN NORTH ATLANTIC
title_full_unstemmed TAXONOMIC STATUS AND GEOGRAPHICAL CRANIAL VARIATION OF COMMON DOLPHINS ( DELPHINUS) IN THE EASTERN NORTH ATLANTIC
title_sort taxonomic status and geographical cranial variation of common dolphins ( delphinus) in the eastern north atlantic
publisher Wiley
publishDate 2006
url http://dx.doi.org/10.1111/j.1748-7692.2006.00037.x
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.2006.00037.x
https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.2006.00037.x
genre North Atlantic
genre_facet North Atlantic
op_source Marine Mammal Science
volume 22, issue 3, page 573-599
ISSN 0824-0469 1748-7692
op_rights http://onlinelibrary.wiley.com/termsAndConditions#vor
op_doi https://doi.org/10.1111/j.1748-7692.2006.00037.x
container_title Marine Mammal Science
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container_issue 3
container_start_page 573
op_container_end_page 599
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