GEOGRAPHIC VARIATION AND SEXUAL DIMORPHISM IN THE SKULL OF DALL'S PORPOISE, PHOCOENOIDES DALLI
Abstract: Two hundred and eighty‐nine skulls of Dall's porpoises from the North Pacific Ocean, Sea of Japan, Sea of Okhotsk, and Bering Sea were investigated morphometrically. A clear pattern of geographic variation was found in overall size of the skull. In the North Pacific, overall skull siz...
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1992
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Online Access: | http://dx.doi.org/10.1111/j.1748-7692.1992.tb00407.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.1992.tb00407.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.1992.tb00407.x |
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crwiley:10.1111/j.1748-7692.1992.tb00407.x 2023-12-03T10:20:19+01:00 GEOGRAPHIC VARIATION AND SEXUAL DIMORPHISM IN THE SKULL OF DALL'S PORPOISE, PHOCOENOIDES DALLI Amano, Masao Miyazaki, Nobuyuki 1992 http://dx.doi.org/10.1111/j.1748-7692.1992.tb00407.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.1992.tb00407.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.1992.tb00407.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Marine Mammal Science volume 8, issue 3, page 240-261 ISSN 0824-0469 1748-7692 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 1992 crwiley https://doi.org/10.1111/j.1748-7692.1992.tb00407.x 2023-11-09T14:25:15Z Abstract: Two hundred and eighty‐nine skulls of Dall's porpoises from the North Pacific Ocean, Sea of Japan, Sea of Okhotsk, and Bering Sea were investigated morphometrically. A clear pattern of geographic variation was found in overall size of the skull. In the North Pacific, overall skull size became gradually smaller eastward from the coast of Japan to the offshore eastern Pacific, and it became larger again off the coast of California. Specimens from the Sea of Japan‐Okhotsk and Bering Sea had larger skulls than those from the central North Pacific. The distribution of primary productivity corresponds well with this pattern of geographic variation, suggesting that quantity of food might affect the overall size of Dall's porpoise skulls. By canonical discriminant analyses, about 70% (male) and 90% (female) of specimens of the Sea of Japan‐Okhotsk population were distinguished from those of other populations. This agrees with the results of genetic studies. Article in Journal/Newspaper Bering Sea Wiley Online Library (via Crossref) Bering Sea Okhotsk Pacific Marine Mammal Science 8 3 240 261 |
institution |
Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Amano, Masao Miyazaki, Nobuyuki GEOGRAPHIC VARIATION AND SEXUAL DIMORPHISM IN THE SKULL OF DALL'S PORPOISE, PHOCOENOIDES DALLI |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Abstract: Two hundred and eighty‐nine skulls of Dall's porpoises from the North Pacific Ocean, Sea of Japan, Sea of Okhotsk, and Bering Sea were investigated morphometrically. A clear pattern of geographic variation was found in overall size of the skull. In the North Pacific, overall skull size became gradually smaller eastward from the coast of Japan to the offshore eastern Pacific, and it became larger again off the coast of California. Specimens from the Sea of Japan‐Okhotsk and Bering Sea had larger skulls than those from the central North Pacific. The distribution of primary productivity corresponds well with this pattern of geographic variation, suggesting that quantity of food might affect the overall size of Dall's porpoise skulls. By canonical discriminant analyses, about 70% (male) and 90% (female) of specimens of the Sea of Japan‐Okhotsk population were distinguished from those of other populations. This agrees with the results of genetic studies. |
format |
Article in Journal/Newspaper |
author |
Amano, Masao Miyazaki, Nobuyuki |
author_facet |
Amano, Masao Miyazaki, Nobuyuki |
author_sort |
Amano, Masao |
title |
GEOGRAPHIC VARIATION AND SEXUAL DIMORPHISM IN THE SKULL OF DALL'S PORPOISE, PHOCOENOIDES DALLI |
title_short |
GEOGRAPHIC VARIATION AND SEXUAL DIMORPHISM IN THE SKULL OF DALL'S PORPOISE, PHOCOENOIDES DALLI |
title_full |
GEOGRAPHIC VARIATION AND SEXUAL DIMORPHISM IN THE SKULL OF DALL'S PORPOISE, PHOCOENOIDES DALLI |
title_fullStr |
GEOGRAPHIC VARIATION AND SEXUAL DIMORPHISM IN THE SKULL OF DALL'S PORPOISE, PHOCOENOIDES DALLI |
title_full_unstemmed |
GEOGRAPHIC VARIATION AND SEXUAL DIMORPHISM IN THE SKULL OF DALL'S PORPOISE, PHOCOENOIDES DALLI |
title_sort |
geographic variation and sexual dimorphism in the skull of dall's porpoise, phocoenoides dalli |
publisher |
Wiley |
publishDate |
1992 |
url |
http://dx.doi.org/10.1111/j.1748-7692.1992.tb00407.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.1992.tb00407.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.1992.tb00407.x |
geographic |
Bering Sea Okhotsk Pacific |
geographic_facet |
Bering Sea Okhotsk Pacific |
genre |
Bering Sea |
genre_facet |
Bering Sea |
op_source |
Marine Mammal Science volume 8, issue 3, page 240-261 ISSN 0824-0469 1748-7692 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1748-7692.1992.tb00407.x |
container_title |
Marine Mammal Science |
container_volume |
8 |
container_issue |
3 |
container_start_page |
240 |
op_container_end_page |
261 |
_version_ |
1784267746953920512 |