Aerial surveys for pack-ice seals along the Ingrid Christensen and Princess Astrid Coasts, East Antarctica
We conducted aerial surveys in the austral summer of 2009-2010 to count and record the spatial distribution patterns of pack-ice seals hauled-out along the Ingrid Christensen and Princess Astrid coast of East Antarctica. A total of 3,601 hauled-out seals were counted from six aerial surveys totallin...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Wildlife Information Liaison Development Society
2014-08-01
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| Series: | Journal of Threatened Taxa |
| Online Access: | http://threatenedtaxa.org/index.php/JoTT/article/view/1580 |
| _version_ | 1818498563557031936 |
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| author | R.S. Kumar J.A. Johnson |
| author_facet | R.S. Kumar J.A. Johnson |
| author_sort | R.S. Kumar |
| collection | DOAJ |
| description | We conducted aerial surveys in the austral summer of 2009-2010 to count and record the spatial distribution patterns of pack-ice seals hauled-out along the Ingrid Christensen and Princess Astrid coast of East Antarctica. A total of 3,601 hauled-out seals were counted from six aerial surveys totalling a length of approx. 1,200km, with each survey lasting about two hours. Weddell Seal Leptonychotes weddellii was the most commonly sighted species in both the areas surveyed (98.2%), and had an encounter rate of 2.9 seals/km. The other species encountered during the survey were Crabeater Seal Lobodon carcinophaga (1.7%) and Leopard Seal Hydrurga leptonyx (0.03%). Group size of hauled-out Weddell Seals varied considerably and ranged from solitary to maximum of 42 individuals. The median group size of Weddell seals hauled-out along the Ingrid Christenson Coast was found to be significantly different between the December 2009 and January 2010 survey. Further, along this coast Weddell Seals were found hauled-out mainly close to the ice shelf and their spatial distribution appeared to be influenced by the extent of sea ice in the area. |
| first_indexed | 2024-12-10T20:17:19Z |
| format | Article |
| id | doaj.art-36d03fbdb509406792deac7777870710 |
| institution | Directory Open Access Journal |
| issn | 0974-7893 0974-7907 |
| language | English |
| last_indexed | 2024-12-10T20:17:19Z |
| publishDate | 2014-08-01 |
| publisher | Wildlife Information Liaison Development Society |
| record_format | Article |
| series | Journal of Threatened Taxa |
| spelling | doaj.art-36d03fbdb509406792deac77778707102022-12-22T01:35:09ZengWildlife Information Liaison Development SocietyJournal of Threatened Taxa0974-78930974-79072014-08-01696230623810.11609/JoTT.o3817.6230-81563Aerial surveys for pack-ice seals along the Ingrid Christensen and Princess Astrid Coasts, East AntarcticaR.S. KumarJ.A. JohnsonWe conducted aerial surveys in the austral summer of 2009-2010 to count and record the spatial distribution patterns of pack-ice seals hauled-out along the Ingrid Christensen and Princess Astrid coast of East Antarctica. A total of 3,601 hauled-out seals were counted from six aerial surveys totalling a length of approx. 1,200km, with each survey lasting about two hours. Weddell Seal Leptonychotes weddellii was the most commonly sighted species in both the areas surveyed (98.2%), and had an encounter rate of 2.9 seals/km. The other species encountered during the survey were Crabeater Seal Lobodon carcinophaga (1.7%) and Leopard Seal Hydrurga leptonyx (0.03%). Group size of hauled-out Weddell Seals varied considerably and ranged from solitary to maximum of 42 individuals. The median group size of Weddell seals hauled-out along the Ingrid Christenson Coast was found to be significantly different between the December 2009 and January 2010 survey. Further, along this coast Weddell Seals were found hauled-out mainly close to the ice shelf and their spatial distribution appeared to be influenced by the extent of sea ice in the area.http://threatenedtaxa.org/index.php/JoTT/article/view/1580 |
| spellingShingle | R.S. Kumar J.A. Johnson Aerial surveys for pack-ice seals along the Ingrid Christensen and Princess Astrid Coasts, East Antarctica Journal of Threatened Taxa |
| title | Aerial surveys for pack-ice seals along the Ingrid Christensen and Princess Astrid Coasts, East Antarctica |
| title_full | Aerial surveys for pack-ice seals along the Ingrid Christensen and Princess Astrid Coasts, East Antarctica |
| title_fullStr | Aerial surveys for pack-ice seals along the Ingrid Christensen and Princess Astrid Coasts, East Antarctica |
| title_full_unstemmed | Aerial surveys for pack-ice seals along the Ingrid Christensen and Princess Astrid Coasts, East Antarctica |
| title_short | Aerial surveys for pack-ice seals along the Ingrid Christensen and Princess Astrid Coasts, East Antarctica |
| title_sort | aerial surveys for pack ice seals along the ingrid christensen and princess astrid coasts east antarctica |
| url | http://threatenedtaxa.org/index.php/JoTT/article/view/1580 |
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