POPULATION ANALYSIS OF NORTHERN BOTTLENOSE WHALES IN THE GULLY, NOVA SCOTIA
ABSTRACT Northern bottlenose whales ( Hyperoodon ampullatus ) are consistently found through the year in the Gully, a prominent submarine canyon on the edge of the Scotian Shelf. Individuals were photographically identified during field studies between 1988 and 1995. About 70% of the population is i...
Published in: | Marine Mammal Science |
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Format: | Article in Journal/Newspaper |
Language: | English |
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1997
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Online Access: | http://dx.doi.org/10.1111/j.1748-7692.1997.tb00625.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.1997.tb00625.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.1997.tb00625.x |
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crwiley:10.1111/j.1748-7692.1997.tb00625.x 2024-03-24T09:02:29+00:00 POPULATION ANALYSIS OF NORTHERN BOTTLENOSE WHALES IN THE GULLY, NOVA SCOTIA Whitehead, HAL Gowans, Shannon Faucher, Annick Mccarrey, Stephen W. 1997 http://dx.doi.org/10.1111/j.1748-7692.1997.tb00625.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.1997.tb00625.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.1997.tb00625.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Marine Mammal Science volume 13, issue 2, page 173-185 ISSN 0824-0469 1748-7692 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 1997 crwiley https://doi.org/10.1111/j.1748-7692.1997.tb00625.x 2024-02-28T02:10:42Z ABSTRACT Northern bottlenose whales ( Hyperoodon ampullatus ) are consistently found through the year in the Gully, a prominent submarine canyon on the edge of the Scotian Shelf. Individuals were photographically identified during field studies between 1988 and 1995. About 70% of the population is identifiable, and 29% have markings which persist reliably over periods of years. A mark‐recapture analysis of photographic individual identifications collected between 1988 and 1995 indicates that the population using the Gully numbers about 230 animals (approximate 95% confidence interval 160‐360). The rate of mortality plus emigration plus mark change (in animals with reliable long‐term marks) is about 12% per year, although this estimate has wide and uncertain confidence limits. Members of the Gully population, which includes calves and mature males, are shorter than animals caught off Labrador. The small size of the Gully population and its persistent use of a very small, bathy‐metrically unique ocean area make it vulnerable to human disturbance. Article in Journal/Newspaper hyperoodon ampullatus Wiley Online Library The Gully ENVELOPE(-57.731,-57.731,51.567,51.567) Marine Mammal Science 13 2 173 185 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Whitehead, HAL Gowans, Shannon Faucher, Annick Mccarrey, Stephen W. POPULATION ANALYSIS OF NORTHERN BOTTLENOSE WHALES IN THE GULLY, NOVA SCOTIA |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
ABSTRACT Northern bottlenose whales ( Hyperoodon ampullatus ) are consistently found through the year in the Gully, a prominent submarine canyon on the edge of the Scotian Shelf. Individuals were photographically identified during field studies between 1988 and 1995. About 70% of the population is identifiable, and 29% have markings which persist reliably over periods of years. A mark‐recapture analysis of photographic individual identifications collected between 1988 and 1995 indicates that the population using the Gully numbers about 230 animals (approximate 95% confidence interval 160‐360). The rate of mortality plus emigration plus mark change (in animals with reliable long‐term marks) is about 12% per year, although this estimate has wide and uncertain confidence limits. Members of the Gully population, which includes calves and mature males, are shorter than animals caught off Labrador. The small size of the Gully population and its persistent use of a very small, bathy‐metrically unique ocean area make it vulnerable to human disturbance. |
format |
Article in Journal/Newspaper |
author |
Whitehead, HAL Gowans, Shannon Faucher, Annick Mccarrey, Stephen W. |
author_facet |
Whitehead, HAL Gowans, Shannon Faucher, Annick Mccarrey, Stephen W. |
author_sort |
Whitehead, HAL |
title |
POPULATION ANALYSIS OF NORTHERN BOTTLENOSE WHALES IN THE GULLY, NOVA SCOTIA |
title_short |
POPULATION ANALYSIS OF NORTHERN BOTTLENOSE WHALES IN THE GULLY, NOVA SCOTIA |
title_full |
POPULATION ANALYSIS OF NORTHERN BOTTLENOSE WHALES IN THE GULLY, NOVA SCOTIA |
title_fullStr |
POPULATION ANALYSIS OF NORTHERN BOTTLENOSE WHALES IN THE GULLY, NOVA SCOTIA |
title_full_unstemmed |
POPULATION ANALYSIS OF NORTHERN BOTTLENOSE WHALES IN THE GULLY, NOVA SCOTIA |
title_sort |
population analysis of northern bottlenose whales in the gully, nova scotia |
publisher |
Wiley |
publishDate |
1997 |
url |
http://dx.doi.org/10.1111/j.1748-7692.1997.tb00625.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.1997.tb00625.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.1997.tb00625.x |
long_lat |
ENVELOPE(-57.731,-57.731,51.567,51.567) |
geographic |
The Gully |
geographic_facet |
The Gully |
genre |
hyperoodon ampullatus |
genre_facet |
hyperoodon ampullatus |
op_source |
Marine Mammal Science volume 13, issue 2, page 173-185 ISSN 0824-0469 1748-7692 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1748-7692.1997.tb00625.x |
container_title |
Marine Mammal Science |
container_volume |
13 |
container_issue |
2 |
container_start_page |
173 |
op_container_end_page |
185 |
_version_ |
1794402838262054912 |