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...
Published in: | Marine Mammal Science |
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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 |
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Open Polar |
collection |
Wiley Online Library |
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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 |
container_volume |
22 |
container_issue |
3 |
container_start_page |
573 |
op_container_end_page |
599 |
_version_ |
1802647204262838272 |