Taxonomic status and geographical cranial variation of common dolphins (Delphinus) in the eastern North Atlantic
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 b...
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ftnmscotlanddc:oai:hyku:5bab2675-afab-4712-9051-73a1e8b2b421 2023-05-15T17:25:51+02:00 Taxonomic status and geographical cranial variation of common dolphins (Delphinus) in the eastern North Atlantic Rogan, Emer Murphy, Sinead Kitchener, Andrew C. Herman, Jeremy S. Pierce, Graham J. 2006-07 https://onlinelibrary.wiley.com/doi/10.1111/j.1748-7692.2006.00037.x unknown Wiley Marine Mammal Science https://onlinelibrary.wiley.com/doi/10.1111/j.1748-7692.2006.00037.x Common dolphin Cetaceans Morphometrics Delphinus delphis Eastern North Atlantic Article 2006 ftnmscotlanddc 2022-07-28T20:37:46Z 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 National Museums Scotland (NMS) Research Repository |
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collection |
National Museums Scotland (NMS) Research Repository |
op_collection_id |
ftnmscotlanddc |
language |
unknown |
topic |
Common dolphin Cetaceans Morphometrics Delphinus delphis Eastern North Atlantic |
spellingShingle |
Common dolphin Cetaceans Morphometrics Delphinus delphis Eastern North Atlantic Rogan, Emer Murphy, Sinead Kitchener, Andrew C. Herman, Jeremy S. Pierce, Graham J. Taxonomic status and geographical cranial variation of common dolphins (Delphinus) in the eastern North Atlantic |
topic_facet |
Common dolphin Cetaceans Morphometrics Delphinus delphis Eastern North Atlantic |
description |
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 |
Rogan, Emer Murphy, Sinead Kitchener, Andrew C. Herman, Jeremy S. Pierce, Graham J. |
author_facet |
Rogan, Emer Murphy, Sinead Kitchener, Andrew C. Herman, Jeremy S. Pierce, Graham J. |
author_sort |
Rogan, Emer |
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 |
https://onlinelibrary.wiley.com/doi/10.1111/j.1748-7692.2006.00037.x |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Marine Mammal Science https://onlinelibrary.wiley.com/doi/10.1111/j.1748-7692.2006.00037.x |
_version_ |
1766117353716711424 |