ENTANGLEMENT IN MAN‐MADE DEBRIS OF ANTARCTIC FUR SEALS AT BIRD ISLAND, SOUTH GEORGIA
A bstract Neck collars of man‐made marine debris were seen on 208 Antarctic fur seals (and removed from 170) during the 142 days of the 1988–1989 pup‐rearing season at Bird Island, South Georgia. This represents at least 0.1% of the total Bird Island population and a minimum of 0.4% of animals in th...
Published in: | Marine Mammal Science |
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Language: | English |
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crwiley:10.1111/j.1748-7692.1990.tb00246.x 2024-09-09T19:08:54+00:00 ENTANGLEMENT IN MAN‐MADE DEBRIS OF ANTARCTIC FUR SEALS AT BIRD ISLAND, SOUTH GEORGIA Croxall, J. P. Rodwell, S. Boyd, I. L. 1990 http://dx.doi.org/10.1111/j.1748-7692.1990.tb00246.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.1990.tb00246.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.1990.tb00246.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Marine Mammal Science volume 6, issue 3, page 221-233 ISSN 0824-0469 1748-7692 journal-article 1990 crwiley https://doi.org/10.1111/j.1748-7692.1990.tb00246.x 2024-08-27T04:31:37Z A bstract Neck collars of man‐made marine debris were seen on 208 Antarctic fur seals (and removed from 170) during the 142 days of the 1988–1989 pup‐rearing season at Bird Island, South Georgia. This represents at least 0.1% of the total Bird Island population and a minimum of 0.4% of animals in the best covered areas; a maximum value might approach 1%. Polypropylene straps (packaging bands) formed 59% of collars, nylon string (16%), fishing net (13%) and six other materials comprised the rest. Males accounted for 71% of entanglements, 88% of which were of young (1–4 yr old) animals; females accounted for 64% of animals older than this. Obvious physical injury was being caused to 30% of animals and only on 19% of animals was the collar loose enough potentially to come off. The magnitude of the problem at South Georgia is similar to that with northern fur seals at the Pribilof Islands, where a significant population decline has occurred concurrently. Antarctic fur seals are still increasing in numbers but stricter controls on the jettisoning of debris into the Southern Ocean ate needed if the entanglement problem is not to increase beyond the level of a potential threat. Article in Journal/Newspaper Antarc* Antarctic Antarctic Fur Seals Bird Island Southern Ocean Wiley Online Library Antarctic Bird Island ENVELOPE(-38.060,-38.060,-54.004,-54.004) Southern Ocean Marine Mammal Science 6 3 221 233 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
A bstract Neck collars of man‐made marine debris were seen on 208 Antarctic fur seals (and removed from 170) during the 142 days of the 1988–1989 pup‐rearing season at Bird Island, South Georgia. This represents at least 0.1% of the total Bird Island population and a minimum of 0.4% of animals in the best covered areas; a maximum value might approach 1%. Polypropylene straps (packaging bands) formed 59% of collars, nylon string (16%), fishing net (13%) and six other materials comprised the rest. Males accounted for 71% of entanglements, 88% of which were of young (1–4 yr old) animals; females accounted for 64% of animals older than this. Obvious physical injury was being caused to 30% of animals and only on 19% of animals was the collar loose enough potentially to come off. The magnitude of the problem at South Georgia is similar to that with northern fur seals at the Pribilof Islands, where a significant population decline has occurred concurrently. Antarctic fur seals are still increasing in numbers but stricter controls on the jettisoning of debris into the Southern Ocean ate needed if the entanglement problem is not to increase beyond the level of a potential threat. |
format |
Article in Journal/Newspaper |
author |
Croxall, J. P. Rodwell, S. Boyd, I. L. |
spellingShingle |
Croxall, J. P. Rodwell, S. Boyd, I. L. ENTANGLEMENT IN MAN‐MADE DEBRIS OF ANTARCTIC FUR SEALS AT BIRD ISLAND, SOUTH GEORGIA |
author_facet |
Croxall, J. P. Rodwell, S. Boyd, I. L. |
author_sort |
Croxall, J. P. |
title |
ENTANGLEMENT IN MAN‐MADE DEBRIS OF ANTARCTIC FUR SEALS AT BIRD ISLAND, SOUTH GEORGIA |
title_short |
ENTANGLEMENT IN MAN‐MADE DEBRIS OF ANTARCTIC FUR SEALS AT BIRD ISLAND, SOUTH GEORGIA |
title_full |
ENTANGLEMENT IN MAN‐MADE DEBRIS OF ANTARCTIC FUR SEALS AT BIRD ISLAND, SOUTH GEORGIA |
title_fullStr |
ENTANGLEMENT IN MAN‐MADE DEBRIS OF ANTARCTIC FUR SEALS AT BIRD ISLAND, SOUTH GEORGIA |
title_full_unstemmed |
ENTANGLEMENT IN MAN‐MADE DEBRIS OF ANTARCTIC FUR SEALS AT BIRD ISLAND, SOUTH GEORGIA |
title_sort |
entanglement in man‐made debris of antarctic fur seals at bird island, south georgia |
publisher |
Wiley |
publishDate |
1990 |
url |
http://dx.doi.org/10.1111/j.1748-7692.1990.tb00246.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.1990.tb00246.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.1990.tb00246.x |
long_lat |
ENVELOPE(-38.060,-38.060,-54.004,-54.004) |
geographic |
Antarctic Bird Island Southern Ocean |
geographic_facet |
Antarctic Bird Island Southern Ocean |
genre |
Antarc* Antarctic Antarctic Fur Seals Bird Island Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Fur Seals Bird Island Southern Ocean |
op_source |
Marine Mammal Science volume 6, issue 3, page 221-233 ISSN 0824-0469 1748-7692 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1748-7692.1990.tb00246.x |
container_title |
Marine Mammal Science |
container_volume |
6 |
container_issue |
3 |
container_start_page |
221 |
op_container_end_page |
233 |
_version_ |
1809823160498913280 |