Variation in saddle patch pigmentation in populations of killer whales ( Orcinus orca) from British Columbia, Alaska, and Washington State
Patterns of pigmentation of the post dorsal fin patch, or saddle patch, were analyzed from photographs of 372 resident and 99 transient killer whales (Orcinus orca) from British Columbia, Alaska, and Washington State. Of the five types of saddle patch analyzed, all were observed on residents, but on...
Published in: | Canadian Journal of Zoology |
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Language: | English |
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Canadian Science Publishing
1988
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Online Access: | http://dx.doi.org/10.1139/z88-380 http://www.nrcresearchpress.com/doi/pdf/10.1139/z88-380 |
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crcansciencepubl:10.1139/z88-380 2024-09-30T14:40:57+00:00 Variation in saddle patch pigmentation in populations of killer whales ( Orcinus orca) from British Columbia, Alaska, and Washington State Baird, Robin William Stacey, Pam Joyce 1988 http://dx.doi.org/10.1139/z88-380 http://www.nrcresearchpress.com/doi/pdf/10.1139/z88-380 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 66, issue 11, page 2582-2585 ISSN 0008-4301 1480-3283 journal-article 1988 crcansciencepubl https://doi.org/10.1139/z88-380 2024-09-05T04:11:14Z Patterns of pigmentation of the post dorsal fin patch, or saddle patch, were analyzed from photographs of 372 resident and 99 transient killer whales (Orcinus orca) from British Columbia, Alaska, and Washington State. Of the five types of saddle patch analyzed, all were observed on residents, but only two occurred on transients. Differences in saddle patch shapes were independent of age and sex. Saddle patch pigmentation patterns were similar among clans within a community. Pigmentation patterns differed significantly between the resident and transient forms, between northern and southern residents, between northern and Alaskan residents, and between southern and Alaskan residents. As the saddle patch shape may be heritable to a large degree, these differences suggest genetic isolation of the populations. If so, this technique may be used to delineate stocks of killer whales from other areas. Article in Journal/Newspaper Orca Orcinus orca Alaska Canadian Science Publishing Canadian Journal of Zoology 66 11 2582 2585 |
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Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
description |
Patterns of pigmentation of the post dorsal fin patch, or saddle patch, were analyzed from photographs of 372 resident and 99 transient killer whales (Orcinus orca) from British Columbia, Alaska, and Washington State. Of the five types of saddle patch analyzed, all were observed on residents, but only two occurred on transients. Differences in saddle patch shapes were independent of age and sex. Saddle patch pigmentation patterns were similar among clans within a community. Pigmentation patterns differed significantly between the resident and transient forms, between northern and southern residents, between northern and Alaskan residents, and between southern and Alaskan residents. As the saddle patch shape may be heritable to a large degree, these differences suggest genetic isolation of the populations. If so, this technique may be used to delineate stocks of killer whales from other areas. |
format |
Article in Journal/Newspaper |
author |
Baird, Robin William Stacey, Pam Joyce |
spellingShingle |
Baird, Robin William Stacey, Pam Joyce Variation in saddle patch pigmentation in populations of killer whales ( Orcinus orca) from British Columbia, Alaska, and Washington State |
author_facet |
Baird, Robin William Stacey, Pam Joyce |
author_sort |
Baird, Robin William |
title |
Variation in saddle patch pigmentation in populations of killer whales ( Orcinus orca) from British Columbia, Alaska, and Washington State |
title_short |
Variation in saddle patch pigmentation in populations of killer whales ( Orcinus orca) from British Columbia, Alaska, and Washington State |
title_full |
Variation in saddle patch pigmentation in populations of killer whales ( Orcinus orca) from British Columbia, Alaska, and Washington State |
title_fullStr |
Variation in saddle patch pigmentation in populations of killer whales ( Orcinus orca) from British Columbia, Alaska, and Washington State |
title_full_unstemmed |
Variation in saddle patch pigmentation in populations of killer whales ( Orcinus orca) from British Columbia, Alaska, and Washington State |
title_sort |
variation in saddle patch pigmentation in populations of killer whales ( orcinus orca) from british columbia, alaska, and washington state |
publisher |
Canadian Science Publishing |
publishDate |
1988 |
url |
http://dx.doi.org/10.1139/z88-380 http://www.nrcresearchpress.com/doi/pdf/10.1139/z88-380 |
genre |
Orca Orcinus orca Alaska |
genre_facet |
Orca Orcinus orca Alaska |
op_source |
Canadian Journal of Zoology volume 66, issue 11, page 2582-2585 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z88-380 |
container_title |
Canadian Journal of Zoology |
container_volume |
66 |
container_issue |
11 |
container_start_page |
2582 |
op_container_end_page |
2585 |
_version_ |
1811643396303880192 |