Aspects of the ecology of Weddell seals Leptonychotes weddellii along the Mawson Coastline, East Antarctica ...
This study investigated the diet and patterns in occurrence of haul-out sites of Weddell seals along the Mawson coast of East Antarctica. Seats of Weddell seals (n = 303) were collected from 139 seal haul-out sites along 250 km of coast between Fold Island (Kemp Land coast - 66.83°S, 58.79°E...
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University Of Tasmania
2023
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Online Access: | https://dx.doi.org/10.25959/23243396 https://figshare.utas.edu.au/articles/thesis/Aspects_of_the_ecology_of_Weddell_seals_Leptonychotes_weddellii_along_the_Mawson_Coastline_East_Antarctica/23243396 |
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ftdatacite:10.25959/23243396 2023-06-11T04:07:02+02:00 Aspects of the ecology of Weddell seals Leptonychotes weddellii along the Mawson Coastline, East Antarctica ... Pike, RJ 2023 https://dx.doi.org/10.25959/23243396 https://figshare.utas.edu.au/articles/thesis/Aspects_of_the_ecology_of_Weddell_seals_Leptonychotes_weddellii_along_the_Mawson_Coastline_East_Antarctica/23243396 unknown University Of Tasmania In Copyright http://rightsstatements.org/vocab/InC/1.0/ article-journal Text ScholarlyArticle Thesis 2023 ftdatacite https://doi.org/10.25959/23243396 2023-06-01T12:13:30Z This study investigated the diet and patterns in occurrence of haul-out sites of Weddell seals along the Mawson coast of East Antarctica. Seats of Weddell seals (n = 303) were collected from 139 seal haul-out sites along 250 km of coast between Fold Island (Kemp Land coast - 66.83°S, 58.79°E) and Auster Islands (MacRobertson Land coast - 67°25'S, 63°50'E) during 1998 to 2000. Identification of species-specific hard parts from the seats found eighteen species of fish, two species of octopod, two species of squid, and four species of crustaceans. Randomisation analyses were used to determine associations between abundance of primary prey species and year, season, geographic location and water depth at the sample collection site. No significant interannual variation was found, but the diet varied seasonally, as the squid Psychroteuthis glacialis featured more in the diet in the early summer months compared to winter. Larger beaks of this squid were found in seats collected from ice over deeper ... Thesis Antarc* Antarctica Auster Islands East Antarctica Fold Island Kemp Land MacRobertson Land Weddell Seals DataCite Metadata Store (German National Library of Science and Technology) Auster ENVELOPE(-59.467,-59.467,-63.817,-63.817) Auster Islands ENVELOPE(63.826,63.826,-67.419,-67.419) East Antarctica Fold Island ENVELOPE(59.383,59.383,-67.300,-67.300) Kemp Land ENVELOPE(57.500,57.500,-67.500,-67.500) MacRobertson Land ENVELOPE(65.000,65.000,-70.000,-70.000) Mawson Coast ENVELOPE(63.000,63.000,-68.000,-68.000) Weddell |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
description |
This study investigated the diet and patterns in occurrence of haul-out sites of Weddell seals along the Mawson coast of East Antarctica. Seats of Weddell seals (n = 303) were collected from 139 seal haul-out sites along 250 km of coast between Fold Island (Kemp Land coast - 66.83°S, 58.79°E) and Auster Islands (MacRobertson Land coast - 67°25'S, 63°50'E) during 1998 to 2000. Identification of species-specific hard parts from the seats found eighteen species of fish, two species of octopod, two species of squid, and four species of crustaceans. Randomisation analyses were used to determine associations between abundance of primary prey species and year, season, geographic location and water depth at the sample collection site. No significant interannual variation was found, but the diet varied seasonally, as the squid Psychroteuthis glacialis featured more in the diet in the early summer months compared to winter. Larger beaks of this squid were found in seats collected from ice over deeper ... |
format |
Thesis |
author |
Pike, RJ |
spellingShingle |
Pike, RJ Aspects of the ecology of Weddell seals Leptonychotes weddellii along the Mawson Coastline, East Antarctica ... |
author_facet |
Pike, RJ |
author_sort |
Pike, RJ |
title |
Aspects of the ecology of Weddell seals Leptonychotes weddellii along the Mawson Coastline, East Antarctica ... |
title_short |
Aspects of the ecology of Weddell seals Leptonychotes weddellii along the Mawson Coastline, East Antarctica ... |
title_full |
Aspects of the ecology of Weddell seals Leptonychotes weddellii along the Mawson Coastline, East Antarctica ... |
title_fullStr |
Aspects of the ecology of Weddell seals Leptonychotes weddellii along the Mawson Coastline, East Antarctica ... |
title_full_unstemmed |
Aspects of the ecology of Weddell seals Leptonychotes weddellii along the Mawson Coastline, East Antarctica ... |
title_sort |
aspects of the ecology of weddell seals leptonychotes weddellii along the mawson coastline, east antarctica ... |
publisher |
University Of Tasmania |
publishDate |
2023 |
url |
https://dx.doi.org/10.25959/23243396 https://figshare.utas.edu.au/articles/thesis/Aspects_of_the_ecology_of_Weddell_seals_Leptonychotes_weddellii_along_the_Mawson_Coastline_East_Antarctica/23243396 |
long_lat |
ENVELOPE(-59.467,-59.467,-63.817,-63.817) ENVELOPE(63.826,63.826,-67.419,-67.419) ENVELOPE(59.383,59.383,-67.300,-67.300) ENVELOPE(57.500,57.500,-67.500,-67.500) ENVELOPE(65.000,65.000,-70.000,-70.000) ENVELOPE(63.000,63.000,-68.000,-68.000) |
geographic |
Auster Auster Islands East Antarctica Fold Island Kemp Land MacRobertson Land Mawson Coast Weddell |
geographic_facet |
Auster Auster Islands East Antarctica Fold Island Kemp Land MacRobertson Land Mawson Coast Weddell |
genre |
Antarc* Antarctica Auster Islands East Antarctica Fold Island Kemp Land MacRobertson Land Weddell Seals |
genre_facet |
Antarc* Antarctica Auster Islands East Antarctica Fold Island Kemp Land MacRobertson Land Weddell Seals |
op_rights |
In Copyright http://rightsstatements.org/vocab/InC/1.0/ |
op_doi |
https://doi.org/10.25959/23243396 |
_version_ |
1768379546584743936 |