A sex ratio based assessment of common minke whales
The sex ratio in the West Greenland catch history of the common minke whale (Balaenoptera acutorostrata) is used to assess the current status of the common minke whale population that supplies the West Greenland hunt. The female fraction in common minke whale foetuses is around 1/2, but the fraction...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.424.4038 2023-05-15T15:36:09+02:00 A sex ratio based assessment of common minke whales The Pennsylvania State University CiteSeerX Archives 2006 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.424.4038 http://www.iwcoffice.co.uk/_documents/sci_com/SC58docs/sc-58-awmp3.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.424.4038 http://www.iwcoffice.co.uk/_documents/sci_com/SC58docs/sc-58-awmp3.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.iwcoffice.co.uk/_documents/sci_com/SC58docs/sc-58-awmp3.pdf sex ratio modelling Atlantic ocean whaling- aboriginal text 2006 ftciteseerx 2016-01-08T04:13:11Z The sex ratio in the West Greenland catch history of the common minke whale (Balaenoptera acutorostrata) is used to assess the current status of the common minke whale population that supplies the West Greenland hunt. The female fraction in common minke whale foetuses is around 1/2, but the fraction in the West Greenland catch has varied around 3/4 since the beginning of the hunt in 1948. This difference is likely to reflect sex specific behaviour, where females tend to occur in other areas than males, but it may also reflect a female selective hunt and/or a female bias in the sex ratio at birth. These hypotheses were examined by trial simulations, where an age- and sex-structured population model with density regulated dynamics were set to cover a maximum sustainable yield rates between 1 % and 7%, a current abundance between 800 and 50, 000 females, different degrees of female bias in the sex specific dispersal, a sex specific hunt, a female bias in the sex ratio at birth, increasing trends in the female bias of a sex specific dispersal and a sex specific hunt, and a uniform, increasing and decreasing age-selectivity in the hunt. Given the trials and the data is it concluded that a current abundance in the order of 20, 000 individuals is a conservative estimate, and that a current catch of 175 individuals most likely is sustainable. Text Balaenoptera acutorostrata Greenland minke whale Unknown Greenland |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
topic |
sex ratio modelling Atlantic ocean whaling- aboriginal |
spellingShingle |
sex ratio modelling Atlantic ocean whaling- aboriginal A sex ratio based assessment of common minke whales |
topic_facet |
sex ratio modelling Atlantic ocean whaling- aboriginal |
description |
The sex ratio in the West Greenland catch history of the common minke whale (Balaenoptera acutorostrata) is used to assess the current status of the common minke whale population that supplies the West Greenland hunt. The female fraction in common minke whale foetuses is around 1/2, but the fraction in the West Greenland catch has varied around 3/4 since the beginning of the hunt in 1948. This difference is likely to reflect sex specific behaviour, where females tend to occur in other areas than males, but it may also reflect a female selective hunt and/or a female bias in the sex ratio at birth. These hypotheses were examined by trial simulations, where an age- and sex-structured population model with density regulated dynamics were set to cover a maximum sustainable yield rates between 1 % and 7%, a current abundance between 800 and 50, 000 females, different degrees of female bias in the sex specific dispersal, a sex specific hunt, a female bias in the sex ratio at birth, increasing trends in the female bias of a sex specific dispersal and a sex specific hunt, and a uniform, increasing and decreasing age-selectivity in the hunt. Given the trials and the data is it concluded that a current abundance in the order of 20, 000 individuals is a conservative estimate, and that a current catch of 175 individuals most likely is sustainable. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
title |
A sex ratio based assessment of common minke whales |
title_short |
A sex ratio based assessment of common minke whales |
title_full |
A sex ratio based assessment of common minke whales |
title_fullStr |
A sex ratio based assessment of common minke whales |
title_full_unstemmed |
A sex ratio based assessment of common minke whales |
title_sort |
sex ratio based assessment of common minke whales |
publishDate |
2006 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.424.4038 http://www.iwcoffice.co.uk/_documents/sci_com/SC58docs/sc-58-awmp3.pdf |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Balaenoptera acutorostrata Greenland minke whale |
genre_facet |
Balaenoptera acutorostrata Greenland minke whale |
op_source |
http://www.iwcoffice.co.uk/_documents/sci_com/SC58docs/sc-58-awmp3.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.424.4038 http://www.iwcoffice.co.uk/_documents/sci_com/SC58docs/sc-58-awmp3.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766366491484094464 |