ARGOS Tracking Data of Fur Seals from Macquarie Island in 1997-1999
Progress Code: completed Statement: See the referenced papers for more information. The populations of fur seals on Australia's two subantarctic islands were exterminated by uncontrolled sealing in the 19th century. Only in the latter half of the 20th century have populations commenced recoveri...
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Online Access: | https://researchdata.edu.au/argos-tracking-data-1997-1999/2819655 |
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ftands:oai:ands.org.au::2819655 2024-09-15T17:42:21+00:00 ARGOS Tracking Data of Fur Seals from Macquarie Island in 1997-1999 AADC (owner) AADC, DATA OFFICER (distributor) AADC, DATA OFFICER (custodian) AU/AADC > Australian Antarctic Data Centre, Australia (hasAssociationWith) Australian Antarctic Data Centre (publisher) Australian Antarctic Division (sponsor) CONNELL, DAVE J. (author) Goldsworthy, S. (originator) Spatial: westlimit=158.00781; southlimit=-55.2021; eastlimit=159.62891; northlimit=-54.09473 Temporal: From 1997-12-15 to 1999-01-28 https://researchdata.edu.au/argos-tracking-data-1997-1999/2819655 unknown Australian Ocean Data Network https://researchdata.edu.au/argos-tracking-data-1997-1999/2819655 AAS_859_Fur_Seals_MI_1997_1999 AU/AADC > Australian Antarctic Data Centre, Australia oceans biota EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > RANGE CHANGES POST-BREEDING PERIODS BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MAMMALS > CARNIVORES > SEALS/SEA LIONS/WALRUSES LACTATION TRACKING FORAGING ARGOS > ARGOS Data Collection and Position Location System SATELLITES AMD/AU AMD CEOS GEOGRAPHIC REGION > POLAR OCEAN > SOUTHERN OCEAN SOUTHERN OCEAN > MACQUARIE ISLAND dataset ftands 2024-08-06T01:58:58Z Progress Code: completed Statement: See the referenced papers for more information. The populations of fur seals on Australia's two subantarctic islands were exterminated by uncontrolled sealing in the 19th century. Only in the latter half of the 20th century have populations commenced recovering. This project provides key information on the status and trends of recovering fur seal populations in the Southern Ocean, including information on the distribution of foraging effort, food and energy requirements, oceanographic determinants of demographic performance, ecological interactions with commercial fisheries, the extent, trends, processes and implications of hybridisation at Macquarie Island, and the status and trends in numbers of the threatened subantarctic fur seal. This dataset represents ARGOS tracking data of fur seals from Macquarie Island during 1997-1999. The tracking data are comprised of 28 data profiles. Taken from the abstract of the referenced paper: Antarctic Arctocephalus gazella and subantarctic Arctocephalus tropicalis fur seals breed sympatrically at Macquarie Island. The two species have different lactation strategies, the former rearing its pup in 4 months and the latter taking 10 months. The diet and at-sea foraging behaviour of these sympatric species was compared during the austral summer period when their pup rearing period overlapped. The prey of the two fur seal species was very similar, with fish dominating the diet. Themyctophid, Electrona subaspera, was the main prey item (93.9%) in all months of the study. There were no major differences in the diving behaviour between species. Both species foraged north of the island parallel to the Macquarie Ridge. Foraging activity was concentrated at two sites: (i) within 30 km north of the island; and (ii) at 60 km north. Most locations for overnight foraging trips were within 10 km of the colonies. The different lactation strategies of A. gazella and A. tropicalis allowed for flexibility in foraging behaviour. At Macquarie Island, the ... Dataset Antarc* Antarctic Arctocephalus gazella Macquarie Island Southern Ocean walrus* Research Data Australia (Australian National Data Service - ANDS) |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
oceans biota EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > RANGE CHANGES POST-BREEDING PERIODS BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MAMMALS > CARNIVORES > SEALS/SEA LIONS/WALRUSES LACTATION TRACKING FORAGING ARGOS > ARGOS Data Collection and Position Location System SATELLITES AMD/AU AMD CEOS GEOGRAPHIC REGION > POLAR OCEAN > SOUTHERN OCEAN SOUTHERN OCEAN > MACQUARIE ISLAND |
spellingShingle |
oceans biota EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > RANGE CHANGES POST-BREEDING PERIODS BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MAMMALS > CARNIVORES > SEALS/SEA LIONS/WALRUSES LACTATION TRACKING FORAGING ARGOS > ARGOS Data Collection and Position Location System SATELLITES AMD/AU AMD CEOS GEOGRAPHIC REGION > POLAR OCEAN > SOUTHERN OCEAN SOUTHERN OCEAN > MACQUARIE ISLAND ARGOS Tracking Data of Fur Seals from Macquarie Island in 1997-1999 |
topic_facet |
oceans biota EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > RANGE CHANGES POST-BREEDING PERIODS BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MAMMALS > CARNIVORES > SEALS/SEA LIONS/WALRUSES LACTATION TRACKING FORAGING ARGOS > ARGOS Data Collection and Position Location System SATELLITES AMD/AU AMD CEOS GEOGRAPHIC REGION > POLAR OCEAN > SOUTHERN OCEAN SOUTHERN OCEAN > MACQUARIE ISLAND |
description |
Progress Code: completed Statement: See the referenced papers for more information. The populations of fur seals on Australia's two subantarctic islands were exterminated by uncontrolled sealing in the 19th century. Only in the latter half of the 20th century have populations commenced recovering. This project provides key information on the status and trends of recovering fur seal populations in the Southern Ocean, including information on the distribution of foraging effort, food and energy requirements, oceanographic determinants of demographic performance, ecological interactions with commercial fisheries, the extent, trends, processes and implications of hybridisation at Macquarie Island, and the status and trends in numbers of the threatened subantarctic fur seal. This dataset represents ARGOS tracking data of fur seals from Macquarie Island during 1997-1999. The tracking data are comprised of 28 data profiles. Taken from the abstract of the referenced paper: Antarctic Arctocephalus gazella and subantarctic Arctocephalus tropicalis fur seals breed sympatrically at Macquarie Island. The two species have different lactation strategies, the former rearing its pup in 4 months and the latter taking 10 months. The diet and at-sea foraging behaviour of these sympatric species was compared during the austral summer period when their pup rearing period overlapped. The prey of the two fur seal species was very similar, with fish dominating the diet. Themyctophid, Electrona subaspera, was the main prey item (93.9%) in all months of the study. There were no major differences in the diving behaviour between species. Both species foraged north of the island parallel to the Macquarie Ridge. Foraging activity was concentrated at two sites: (i) within 30 km north of the island; and (ii) at 60 km north. Most locations for overnight foraging trips were within 10 km of the colonies. The different lactation strategies of A. gazella and A. tropicalis allowed for flexibility in foraging behaviour. At Macquarie Island, the ... |
author2 |
AADC (owner) AADC, DATA OFFICER (distributor) AADC, DATA OFFICER (custodian) AU/AADC > Australian Antarctic Data Centre, Australia (hasAssociationWith) Australian Antarctic Data Centre (publisher) Australian Antarctic Division (sponsor) CONNELL, DAVE J. (author) Goldsworthy, S. (originator) |
format |
Dataset |
title |
ARGOS Tracking Data of Fur Seals from Macquarie Island in 1997-1999 |
title_short |
ARGOS Tracking Data of Fur Seals from Macquarie Island in 1997-1999 |
title_full |
ARGOS Tracking Data of Fur Seals from Macquarie Island in 1997-1999 |
title_fullStr |
ARGOS Tracking Data of Fur Seals from Macquarie Island in 1997-1999 |
title_full_unstemmed |
ARGOS Tracking Data of Fur Seals from Macquarie Island in 1997-1999 |
title_sort |
argos tracking data of fur seals from macquarie island in 1997-1999 |
publisher |
Australian Ocean Data Network |
url |
https://researchdata.edu.au/argos-tracking-data-1997-1999/2819655 |
op_coverage |
Spatial: westlimit=158.00781; southlimit=-55.2021; eastlimit=159.62891; northlimit=-54.09473 Temporal: From 1997-12-15 to 1999-01-28 |
genre |
Antarc* Antarctic Arctocephalus gazella Macquarie Island Southern Ocean walrus* |
genre_facet |
Antarc* Antarctic Arctocephalus gazella Macquarie Island Southern Ocean walrus* |
op_source |
AU/AADC > Australian Antarctic Data Centre, Australia |
op_relation |
https://researchdata.edu.au/argos-tracking-data-1997-1999/2819655 AAS_859_Fur_Seals_MI_1997_1999 |
_version_ |
1810488872191131648 |