GEOGRAPHICAL VARIATION IN METRIC SKULL CHARACTERS AMONG PROPOSED SUBPOPULATIONS AND STOCKS OF HARBOR PORPOISE, PHOCOENA PHOCOENA , IN THE WESTERN NORTH ATLANTIC
A bstract A total of 433 skulls of harbor porpoises, Phocoena phocoena , were examined to evaluate geographical variation within the western North Atlantic, using analysis of covariance and discriminant analysis based on 45 measurements of skull components. The relationship between condylobasal leng...
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Online Access: | http://dx.doi.org/10.1111/j.1748-7692.1996.tb00064.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.1996.tb00064.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.1996.tb00064.x |
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crwiley:10.1111/j.1748-7692.1996.tb00064.x 2023-12-03T10:26:10+01:00 GEOGRAPHICAL VARIATION IN METRIC SKULL CHARACTERS AMONG PROPOSED SUBPOPULATIONS AND STOCKS OF HARBOR PORPOISE, PHOCOENA PHOCOENA , IN THE WESTERN NORTH ATLANTIC Gao, Anli Gaskin, D. E. 1996 http://dx.doi.org/10.1111/j.1748-7692.1996.tb00064.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.1996.tb00064.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.1996.tb00064.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Marine Mammal Science volume 12, issue 4, page 516-527 ISSN 0824-0469 1748-7692 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 1996 crwiley https://doi.org/10.1111/j.1748-7692.1996.tb00064.x 2023-11-09T14:14:00Z A bstract A total of 433 skulls of harbor porpoises, Phocoena phocoena , were examined to evaluate geographical variation within the western North Atlantic, using analysis of covariance and discriminant analysis based on 45 measurements of skull components. The relationship between condylobasal length and body length was sigmoid in both sexes. Condylobasal length is generally less in adult males than in adult females. Despite some overlap, morphological differences between different regions and even adjacent local stocks could be recognized by ANCOVA and discriminant analysis. The percentage of correct classification by discriminant functions was 65.2% for the four regional samples: (1) North Canadian Atlantic (which includes Gulf of St. Lawrence and Newfoundland), (2) Bay of Fundy, (3) Gulf of Maine‐New York, and (4) Maryland‐South Carolina. It was 65.9% for the four local geographical areas (10s of km) within the Bay of Fundy; Quoddy‐region porpoises revealed a closer relationship with the southwestern Nova Scotia population than with other adjacent stocks. The results at this level imply that gene flow is restricted to some degree even among closely adjacent geographical units. Management of this species should aim, therefore, for conservation of a variety of local stocks. Article in Journal/Newspaper Newfoundland North Atlantic Phocoena phocoena Wiley Online Library (via Crossref) Marine Mammal Science 12 4 516 527 |
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 Gao, Anli Gaskin, D. E. GEOGRAPHICAL VARIATION IN METRIC SKULL CHARACTERS AMONG PROPOSED SUBPOPULATIONS AND STOCKS OF HARBOR PORPOISE, PHOCOENA PHOCOENA , IN THE WESTERN NORTH ATLANTIC |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
A bstract A total of 433 skulls of harbor porpoises, Phocoena phocoena , were examined to evaluate geographical variation within the western North Atlantic, using analysis of covariance and discriminant analysis based on 45 measurements of skull components. The relationship between condylobasal length and body length was sigmoid in both sexes. Condylobasal length is generally less in adult males than in adult females. Despite some overlap, morphological differences between different regions and even adjacent local stocks could be recognized by ANCOVA and discriminant analysis. The percentage of correct classification by discriminant functions was 65.2% for the four regional samples: (1) North Canadian Atlantic (which includes Gulf of St. Lawrence and Newfoundland), (2) Bay of Fundy, (3) Gulf of Maine‐New York, and (4) Maryland‐South Carolina. It was 65.9% for the four local geographical areas (10s of km) within the Bay of Fundy; Quoddy‐region porpoises revealed a closer relationship with the southwestern Nova Scotia population than with other adjacent stocks. The results at this level imply that gene flow is restricted to some degree even among closely adjacent geographical units. Management of this species should aim, therefore, for conservation of a variety of local stocks. |
format |
Article in Journal/Newspaper |
author |
Gao, Anli Gaskin, D. E. |
author_facet |
Gao, Anli Gaskin, D. E. |
author_sort |
Gao, Anli |
title |
GEOGRAPHICAL VARIATION IN METRIC SKULL CHARACTERS AMONG PROPOSED SUBPOPULATIONS AND STOCKS OF HARBOR PORPOISE, PHOCOENA PHOCOENA , IN THE WESTERN NORTH ATLANTIC |
title_short |
GEOGRAPHICAL VARIATION IN METRIC SKULL CHARACTERS AMONG PROPOSED SUBPOPULATIONS AND STOCKS OF HARBOR PORPOISE, PHOCOENA PHOCOENA , IN THE WESTERN NORTH ATLANTIC |
title_full |
GEOGRAPHICAL VARIATION IN METRIC SKULL CHARACTERS AMONG PROPOSED SUBPOPULATIONS AND STOCKS OF HARBOR PORPOISE, PHOCOENA PHOCOENA , IN THE WESTERN NORTH ATLANTIC |
title_fullStr |
GEOGRAPHICAL VARIATION IN METRIC SKULL CHARACTERS AMONG PROPOSED SUBPOPULATIONS AND STOCKS OF HARBOR PORPOISE, PHOCOENA PHOCOENA , IN THE WESTERN NORTH ATLANTIC |
title_full_unstemmed |
GEOGRAPHICAL VARIATION IN METRIC SKULL CHARACTERS AMONG PROPOSED SUBPOPULATIONS AND STOCKS OF HARBOR PORPOISE, PHOCOENA PHOCOENA , IN THE WESTERN NORTH ATLANTIC |
title_sort |
geographical variation in metric skull characters among proposed subpopulations and stocks of harbor porpoise, phocoena phocoena , in the western north atlantic |
publisher |
Wiley |
publishDate |
1996 |
url |
http://dx.doi.org/10.1111/j.1748-7692.1996.tb00064.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.1996.tb00064.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.1996.tb00064.x |
genre |
Newfoundland North Atlantic Phocoena phocoena |
genre_facet |
Newfoundland North Atlantic Phocoena phocoena |
op_source |
Marine Mammal Science volume 12, issue 4, page 516-527 ISSN 0824-0469 1748-7692 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1748-7692.1996.tb00064.x |
container_title |
Marine Mammal Science |
container_volume |
12 |
container_issue |
4 |
container_start_page |
516 |
op_container_end_page |
527 |
_version_ |
1784275355247312896 |