Subset of data from the TAGS database of known age seals - Weddell Seals
Progress Code: completed Statement: Observations are approximately 95% accurate. Errors in observation and entry possible where animals are misplaced. It is strongly recommended that prospective users of these data contact the investigators before using these data. Mark Hindell Mark.Hindell@utas.edu...
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Australian Ocean Data Network
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Online Access: | https://researchdata.edu.au/subset-tags-database-weddell-seals/2821245 |
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ftands:oai:ands.org.au::2821245 2024-09-15T17:45:41+00:00 Subset of data from the TAGS database of known age seals - Weddell Seals 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) BURTON, HARRY (hasPrincipalInvestigator) Burton, H., McMahon, C., van den Hoff, J. and Hindell, M. (originator) HINDELL, MARK A. (hasPrincipalInvestigator) VAN DEN HOFF, JOHN (hasPrincipalInvestigator) Spatial: westlimit=62.867; southlimit=-69.7; eastlimit=78.733; northlimit=-67.617 Spatial: westlimit=110.2; southlimit=-66.7; eastlimit=110.8; northlimit=-66.2 Temporal: From 1973-01-22 to 2006-10-02 https://researchdata.edu.au/subset-tags-database-weddell-seals/2821245 unknown Australian Ocean Data Network https://researchdata.edu.au/subset-tags-database-weddell-seals/2821245 TAGS_Weddell_Seals AU/AADC > Australian Antarctic Data Centre, Australia biota oceans EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MAMMALS > CARNIVORES > SEALS/SEA LIONS/WALRUSES VESTFOLD HILLS MAWSON WEDDELL SEAL WINDMILL ISLANDS VISUAL OBSERVATIONS FIELD SURVEYS OBIS > OCEAN BIOGEOGRAPHIC INFORMATION SYSTEM COML > CENSUS OF MARINE LIFE CEOS AMD/AU AMD OCEAN > SOUTHERN OCEAN CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR dataset ftands 2024-08-06T01:58:58Z Progress Code: completed Statement: Observations are approximately 95% accurate. Errors in observation and entry possible where animals are misplaced. It is strongly recommended that prospective users of these data contact the investigators before using these data. Mark Hindell Mark.Hindell@utas.edu.au Clive McMahon clive.mcmahon@utas.edu.au John van den Hoff John.Vandenhoff@aad.gov.au This database is a compendium of histories of known age seals (Weddell) from observations across the Southern Ocean but focussed on the Windmill Islands, Mawson and the Vestfold Hills. Although the following information pertains to Elephant Seals, it is assumed similar procedures were undertaken with the Weddell Seals between 1973 and 2006: At Macquarie Island 1000 seals were weighed per annum between 1993-2003 at birth and individually marked with two plastic flipper tags in the inter-digital webbing of their hind flippers. These tagged seals were weighed again at weaning, when length, girth, fat depth, and flipper measurements were made. Three weeks after weaning 2000 seals were permanently and individually marked by hot-iron branding. Recaptures and re-weighings of these known aged individuals were used to calculate growth and age-specific survival of the seals. Similar data were collected from elephant seals between 1950 and 1965 when seals were individually marked by hot-iron branding. Mark-recapture data from these cohorts were used to assess the demography of the declining population. Length and mass data were also collected for these cohorts and were used, for the first time, to assess the growth of individual seals without killing them. The database was held by the Australian Antarctic Data Centre, but was taken offline due to maintenance problems. A snapshot of the database was taken in June 2018 and stored in an access database. This work was completed as part of ASAC project 90. Dataset Antarc* Antarctic Antarctica Elephant Seals Macquarie Island Southern Ocean Weddell Seal Weddell Seals Windmill Islands 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 |
biota oceans EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MAMMALS > CARNIVORES > SEALS/SEA LIONS/WALRUSES VESTFOLD HILLS MAWSON WEDDELL SEAL WINDMILL ISLANDS VISUAL OBSERVATIONS FIELD SURVEYS OBIS > OCEAN BIOGEOGRAPHIC INFORMATION SYSTEM COML > CENSUS OF MARINE LIFE CEOS AMD/AU AMD OCEAN > SOUTHERN OCEAN CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR |
spellingShingle |
biota oceans EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MAMMALS > CARNIVORES > SEALS/SEA LIONS/WALRUSES VESTFOLD HILLS MAWSON WEDDELL SEAL WINDMILL ISLANDS VISUAL OBSERVATIONS FIELD SURVEYS OBIS > OCEAN BIOGEOGRAPHIC INFORMATION SYSTEM COML > CENSUS OF MARINE LIFE CEOS AMD/AU AMD OCEAN > SOUTHERN OCEAN CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR Subset of data from the TAGS database of known age seals - Weddell Seals |
topic_facet |
biota oceans EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MAMMALS > CARNIVORES > SEALS/SEA LIONS/WALRUSES VESTFOLD HILLS MAWSON WEDDELL SEAL WINDMILL ISLANDS VISUAL OBSERVATIONS FIELD SURVEYS OBIS > OCEAN BIOGEOGRAPHIC INFORMATION SYSTEM COML > CENSUS OF MARINE LIFE CEOS AMD/AU AMD OCEAN > SOUTHERN OCEAN CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR |
description |
Progress Code: completed Statement: Observations are approximately 95% accurate. Errors in observation and entry possible where animals are misplaced. It is strongly recommended that prospective users of these data contact the investigators before using these data. Mark Hindell Mark.Hindell@utas.edu.au Clive McMahon clive.mcmahon@utas.edu.au John van den Hoff John.Vandenhoff@aad.gov.au This database is a compendium of histories of known age seals (Weddell) from observations across the Southern Ocean but focussed on the Windmill Islands, Mawson and the Vestfold Hills. Although the following information pertains to Elephant Seals, it is assumed similar procedures were undertaken with the Weddell Seals between 1973 and 2006: At Macquarie Island 1000 seals were weighed per annum between 1993-2003 at birth and individually marked with two plastic flipper tags in the inter-digital webbing of their hind flippers. These tagged seals were weighed again at weaning, when length, girth, fat depth, and flipper measurements were made. Three weeks after weaning 2000 seals were permanently and individually marked by hot-iron branding. Recaptures and re-weighings of these known aged individuals were used to calculate growth and age-specific survival of the seals. Similar data were collected from elephant seals between 1950 and 1965 when seals were individually marked by hot-iron branding. Mark-recapture data from these cohorts were used to assess the demography of the declining population. Length and mass data were also collected for these cohorts and were used, for the first time, to assess the growth of individual seals without killing them. The database was held by the Australian Antarctic Data Centre, but was taken offline due to maintenance problems. A snapshot of the database was taken in June 2018 and stored in an access database. This work was completed as part of ASAC project 90. |
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) BURTON, HARRY (hasPrincipalInvestigator) Burton, H., McMahon, C., van den Hoff, J. and Hindell, M. (originator) HINDELL, MARK A. (hasPrincipalInvestigator) VAN DEN HOFF, JOHN (hasPrincipalInvestigator) |
format |
Dataset |
title |
Subset of data from the TAGS database of known age seals - Weddell Seals |
title_short |
Subset of data from the TAGS database of known age seals - Weddell Seals |
title_full |
Subset of data from the TAGS database of known age seals - Weddell Seals |
title_fullStr |
Subset of data from the TAGS database of known age seals - Weddell Seals |
title_full_unstemmed |
Subset of data from the TAGS database of known age seals - Weddell Seals |
title_sort |
subset of data from the tags database of known age seals - weddell seals |
publisher |
Australian Ocean Data Network |
url |
https://researchdata.edu.au/subset-tags-database-weddell-seals/2821245 |
op_coverage |
Spatial: westlimit=62.867; southlimit=-69.7; eastlimit=78.733; northlimit=-67.617 Spatial: westlimit=110.2; southlimit=-66.7; eastlimit=110.8; northlimit=-66.2 Temporal: From 1973-01-22 to 2006-10-02 |
genre |
Antarc* Antarctic Antarctica Elephant Seals Macquarie Island Southern Ocean Weddell Seal Weddell Seals Windmill Islands walrus* |
genre_facet |
Antarc* Antarctic Antarctica Elephant Seals Macquarie Island Southern Ocean Weddell Seal Weddell Seals Windmill Islands walrus* |
op_source |
AU/AADC > Australian Antarctic Data Centre, Australia |
op_relation |
https://researchdata.edu.au/subset-tags-database-weddell-seals/2821245 TAGS_Weddell_Seals |
_version_ |
1810493586237554688 |