Antarctic pack ice seal observations during spring across the Lazarev Sea
The distribution, density and percentage contribution of pack ice seals during ship-board censuses in the marginal sea ice zone beyond the Lazarev Sea in spring 2019 are presented. Adult/juvenile crabeater seals (n = 19), leopard seals (n = 3) and Ross seals (n = 10) were sighted during 582.2 nm of...
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Cambridge University Press
2021
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Online Access: | http://hdl.handle.net/2263/84357 https://doi.org/10.1017/S003224742100005X |
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ftunivpretoria:oai:repository.up.ac.za:2263/84357 2023-05-15T14:02:52+02:00 Antarctic pack ice seal observations during spring across the Lazarev Sea Bester, Marthan Nieuwoudt Lubcker, Nico Haddad, Wiam Bornemann, Horst Wege, Mia 2021 http://hdl.handle.net/2263/84357 https://doi.org/10.1017/S003224742100005X en eng Cambridge University Press http://hdl.handle.net/2263/84357 Bester, M. N., Lübcker, N., Haddad, W., Bornemann, H. and Wege, M. (2021) “Antarctic pack ice seal observations during spring across the Lazarev Sea,” Polar Record. Cambridge University Press, 57, p. e12. doi:10.1017/S003224742100005X. 0032-2474 (print) 1475-3057 (online) doi:10.1017/S003224742100005X © The Author(s) 2021. Published by Cambridge University Press Antarctic fur seal (Arctocephalus gazella) Crabeater seal (Lobodon carcinophaga) Leopard seal (Hydrurga leptonyx) Ross seals Ship-board censuses Postprint Article 2021 ftunivpretoria https://doi.org/10.1017/S003224742100005X 2022-05-31T13:26:55Z The distribution, density and percentage contribution of pack ice seals during ship-board censuses in the marginal sea ice zone beyond the Lazarev Sea in spring 2019 are presented. Adult/juvenile crabeater seals (n = 19), leopard seals (n = 3) and Ross seals (n = 10) were sighted during 582.2 nm of censuses along the ship’s track line in the area bounded by 00°00’–22°E and 56°–60°S. Antarctic fur seals (n = 21) were only encountered on the outer fringes of the pack ice, and Weddell seals were absent due to their primary use of fast ice and inner pack ice habitats close to the coast. Crabeater seal sightings included juveniles (n = 2) and another four groups of 2–3 unclassified crabeater seals, singletons (n = 5), single mothers with pups (n = 3) and a family group (n = 1 triad). Only one leopard seal attended a pup, while no Ross seal pups were located. The survey was likely of insufficient effort, in both extent (north of 60°S) and duration (18 days), to locate seals in considerable numbers this early (late October/early November) in their austral spring breeding season. The National Research Foundation (NRF) http://www.cambridge.org/pol hj2022 Mammal Research Institute Zoology and Entomology Article in Journal/Newspaper Antarc* Antarctic Antarctic Fur Seal Antarctic Fur Seals Arctocephalus gazella Crabeater Seal Crabeater Seals Hydrurga leptonyx Lazarev Sea Leopard Seal Leopard Seals Polar Record Ross Seal Sea ice Weddell Seals University of Pretoria: UPSpace Antarctic Austral Hydrurga ENVELOPE(-61.626,-61.626,-64.145,-64.145) Lazarev ENVELOPE(12.917,12.917,-69.967,-69.967) Lazarev Sea ENVELOPE(7.000,7.000,-68.000,-68.000) Weddell Polar Record 57 |
institution |
Open Polar |
collection |
University of Pretoria: UPSpace |
op_collection_id |
ftunivpretoria |
language |
English |
topic |
Antarctic fur seal (Arctocephalus gazella) Crabeater seal (Lobodon carcinophaga) Leopard seal (Hydrurga leptonyx) Ross seals Ship-board censuses |
spellingShingle |
Antarctic fur seal (Arctocephalus gazella) Crabeater seal (Lobodon carcinophaga) Leopard seal (Hydrurga leptonyx) Ross seals Ship-board censuses Bester, Marthan Nieuwoudt Lubcker, Nico Haddad, Wiam Bornemann, Horst Wege, Mia Antarctic pack ice seal observations during spring across the Lazarev Sea |
topic_facet |
Antarctic fur seal (Arctocephalus gazella) Crabeater seal (Lobodon carcinophaga) Leopard seal (Hydrurga leptonyx) Ross seals Ship-board censuses |
description |
The distribution, density and percentage contribution of pack ice seals during ship-board censuses in the marginal sea ice zone beyond the Lazarev Sea in spring 2019 are presented. Adult/juvenile crabeater seals (n = 19), leopard seals (n = 3) and Ross seals (n = 10) were sighted during 582.2 nm of censuses along the ship’s track line in the area bounded by 00°00’–22°E and 56°–60°S. Antarctic fur seals (n = 21) were only encountered on the outer fringes of the pack ice, and Weddell seals were absent due to their primary use of fast ice and inner pack ice habitats close to the coast. Crabeater seal sightings included juveniles (n = 2) and another four groups of 2–3 unclassified crabeater seals, singletons (n = 5), single mothers with pups (n = 3) and a family group (n = 1 triad). Only one leopard seal attended a pup, while no Ross seal pups were located. The survey was likely of insufficient effort, in both extent (north of 60°S) and duration (18 days), to locate seals in considerable numbers this early (late October/early November) in their austral spring breeding season. The National Research Foundation (NRF) http://www.cambridge.org/pol hj2022 Mammal Research Institute Zoology and Entomology |
format |
Article in Journal/Newspaper |
author |
Bester, Marthan Nieuwoudt Lubcker, Nico Haddad, Wiam Bornemann, Horst Wege, Mia |
author_facet |
Bester, Marthan Nieuwoudt Lubcker, Nico Haddad, Wiam Bornemann, Horst Wege, Mia |
author_sort |
Bester, Marthan Nieuwoudt |
title |
Antarctic pack ice seal observations during spring across the Lazarev Sea |
title_short |
Antarctic pack ice seal observations during spring across the Lazarev Sea |
title_full |
Antarctic pack ice seal observations during spring across the Lazarev Sea |
title_fullStr |
Antarctic pack ice seal observations during spring across the Lazarev Sea |
title_full_unstemmed |
Antarctic pack ice seal observations during spring across the Lazarev Sea |
title_sort |
antarctic pack ice seal observations during spring across the lazarev sea |
publisher |
Cambridge University Press |
publishDate |
2021 |
url |
http://hdl.handle.net/2263/84357 https://doi.org/10.1017/S003224742100005X |
long_lat |
ENVELOPE(-61.626,-61.626,-64.145,-64.145) ENVELOPE(12.917,12.917,-69.967,-69.967) ENVELOPE(7.000,7.000,-68.000,-68.000) |
geographic |
Antarctic Austral Hydrurga Lazarev Lazarev Sea Weddell |
geographic_facet |
Antarctic Austral Hydrurga Lazarev Lazarev Sea Weddell |
genre |
Antarc* Antarctic Antarctic Fur Seal Antarctic Fur Seals Arctocephalus gazella Crabeater Seal Crabeater Seals Hydrurga leptonyx Lazarev Sea Leopard Seal Leopard Seals Polar Record Ross Seal Sea ice Weddell Seals |
genre_facet |
Antarc* Antarctic Antarctic Fur Seal Antarctic Fur Seals Arctocephalus gazella Crabeater Seal Crabeater Seals Hydrurga leptonyx Lazarev Sea Leopard Seal Leopard Seals Polar Record Ross Seal Sea ice Weddell Seals |
op_relation |
http://hdl.handle.net/2263/84357 Bester, M. N., Lübcker, N., Haddad, W., Bornemann, H. and Wege, M. (2021) “Antarctic pack ice seal observations during spring across the Lazarev Sea,” Polar Record. Cambridge University Press, 57, p. e12. doi:10.1017/S003224742100005X. 0032-2474 (print) 1475-3057 (online) doi:10.1017/S003224742100005X |
op_rights |
© The Author(s) 2021. Published by Cambridge University Press |
op_doi |
https://doi.org/10.1017/S003224742100005X |
container_title |
Polar Record |
container_volume |
57 |
_version_ |
1766273272265048064 |