Southern Elephant Seal Foraging in the Southern Ocean
Progress Code: completed Statement: Values provided in temporal coverage are approximate only. Twenty three juvenile (8-14 months of age) southern elephant seals (Mirounga leonina L.) from Macquarie Island were tracked during 1993 and 1995. Migratory tracks and ocean areas with concentrated activity...
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Australian Ocean Data Network
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Online Access: | https://researchdata.edu.au/southern-elephant-seal-southern-ocean/2822382 |
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ftands:oai:ands.org.au::2822382 2023-12-03T10:13:44+01:00 Southern Elephant Seal Foraging in the Southern Ocean Spatial: westlimit=130; southlimit=-73.0; eastlimit=-20; northlimit=-38.0 Temporal: From 1991-09-30 to 1992-03-31 https://researchdata.edu.au/southern-elephant-seal-southern-ocean/2822382 unknown Australian Ocean Data Network https://researchdata.edu.au/southern-elephant-seal-southern-ocean/2822382 ASAC_468 Dataset DOI AU/AADC > Australian Antarctic Data Centre, Australia biota oceans EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES ANIMALS/VERTEBRATES > MAMMALS BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > MIGRATORY RATES/ROUTES USE/FEEDING HABITATS MAMMALS > CARNIVORES > SEALS/SEA LIONS/WALRUSES % TRIP DIVING AGE AREA AT SEA MASS GAIN BEARING BODY SIZE CCAMLR DAYS AT SEA DEPARTURE MASS DIVE DURATION DIVERS PER HOUR DIVES DRIFT EEZ FISHERIES MANAGEMENT AREAS FORAGING FORAGING AREAS GEOLOCATION GIRTH JUVENILE LATITUDE LENGTH LONGITUDE MACQUARIE ISLAND MIGRATION dataset ftands 2023-11-06T23:53:30Z Progress Code: completed Statement: Values provided in temporal coverage are approximate only. Twenty three juvenile (8-14 months of age) southern elephant seals (Mirounga leonina L.) from Macquarie Island were tracked during 1993 and 1995. Migratory tracks and ocean areas with concentrated activity, presumed to be foraging grounds, were established from location data gathered by attached geolocation time depth recorders. The seals ranged widely (811-3258 km) and foraging activity centred on oceanographic frontal systems, especially the Antarctic Polar Front and bathymetric features such as the Campbell Plateau region. The seals spent 58.6% of their sea time within managed fishery areas while the remainder was spent on the high seas, an area of unregulated fishing. The Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) areas 58.4.1, 88.2 and especially 88.1 were important and distant foraging areas for these juvenile elephant seals. From fisheries records, diet and the foraging ecology studies of the seals there appears to be little, if any, overlap or conflict between the seals and commercial fishing operations within the regulated commercial areas. However, attention is drawn to the possibility of future interactions if Southern Ocean fisheries expand or new ones commence. Furthermore. The dive duration of 16 underyearling (6-12 months old) southern elephant seals Mirounga leonina during their second trip to sea was investigated using geolocating time depth recorders. Underyearling seals had a lesser diving ability, with respect to duration and depth, than adult southern elephant seals. Individual underyearlings dived for average durations of up to 20.3 minutes and depths up to 416m compared to durations and depths of 36.9 minutes and 589m, respectively for adults. Dive duration was positively related to their body mass at departure, indicating that smaller seals were limited to shorter dive durations, perhaps as a result of their lesser aerobic capacity. All seals often exceeded ... Dataset Antarc* Antarctic Elephant Seal Elephant Seals Macquarie Island Mirounga leonina Southern Elephant Seal Southern Elephant Seals Southern Ocean walrus* Research Data Australia (Australian National Data Service - ANDS) Antarctic Southern Ocean The Antarctic Campbell Plateau ENVELOPE(171.000,171.000,-50.667,-50.667) |
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 ANIMALS/VERTEBRATES > MAMMALS BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > MIGRATORY RATES/ROUTES USE/FEEDING HABITATS MAMMALS > CARNIVORES > SEALS/SEA LIONS/WALRUSES % TRIP DIVING AGE AREA AT SEA MASS GAIN BEARING BODY SIZE CCAMLR DAYS AT SEA DEPARTURE MASS DIVE DURATION DIVERS PER HOUR DIVES DRIFT EEZ FISHERIES MANAGEMENT AREAS FORAGING FORAGING AREAS GEOLOCATION GIRTH JUVENILE LATITUDE LENGTH LONGITUDE MACQUARIE ISLAND MIGRATION |
spellingShingle |
biota oceans EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES ANIMALS/VERTEBRATES > MAMMALS BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > MIGRATORY RATES/ROUTES USE/FEEDING HABITATS MAMMALS > CARNIVORES > SEALS/SEA LIONS/WALRUSES % TRIP DIVING AGE AREA AT SEA MASS GAIN BEARING BODY SIZE CCAMLR DAYS AT SEA DEPARTURE MASS DIVE DURATION DIVERS PER HOUR DIVES DRIFT EEZ FISHERIES MANAGEMENT AREAS FORAGING FORAGING AREAS GEOLOCATION GIRTH JUVENILE LATITUDE LENGTH LONGITUDE MACQUARIE ISLAND MIGRATION Southern Elephant Seal Foraging in the Southern Ocean |
topic_facet |
biota oceans EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES ANIMALS/VERTEBRATES > MAMMALS BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > MIGRATORY RATES/ROUTES USE/FEEDING HABITATS MAMMALS > CARNIVORES > SEALS/SEA LIONS/WALRUSES % TRIP DIVING AGE AREA AT SEA MASS GAIN BEARING BODY SIZE CCAMLR DAYS AT SEA DEPARTURE MASS DIVE DURATION DIVERS PER HOUR DIVES DRIFT EEZ FISHERIES MANAGEMENT AREAS FORAGING FORAGING AREAS GEOLOCATION GIRTH JUVENILE LATITUDE LENGTH LONGITUDE MACQUARIE ISLAND MIGRATION |
description |
Progress Code: completed Statement: Values provided in temporal coverage are approximate only. Twenty three juvenile (8-14 months of age) southern elephant seals (Mirounga leonina L.) from Macquarie Island were tracked during 1993 and 1995. Migratory tracks and ocean areas with concentrated activity, presumed to be foraging grounds, were established from location data gathered by attached geolocation time depth recorders. The seals ranged widely (811-3258 km) and foraging activity centred on oceanographic frontal systems, especially the Antarctic Polar Front and bathymetric features such as the Campbell Plateau region. The seals spent 58.6% of their sea time within managed fishery areas while the remainder was spent on the high seas, an area of unregulated fishing. The Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) areas 58.4.1, 88.2 and especially 88.1 were important and distant foraging areas for these juvenile elephant seals. From fisheries records, diet and the foraging ecology studies of the seals there appears to be little, if any, overlap or conflict between the seals and commercial fishing operations within the regulated commercial areas. However, attention is drawn to the possibility of future interactions if Southern Ocean fisheries expand or new ones commence. Furthermore. The dive duration of 16 underyearling (6-12 months old) southern elephant seals Mirounga leonina during their second trip to sea was investigated using geolocating time depth recorders. Underyearling seals had a lesser diving ability, with respect to duration and depth, than adult southern elephant seals. Individual underyearlings dived for average durations of up to 20.3 minutes and depths up to 416m compared to durations and depths of 36.9 minutes and 589m, respectively for adults. Dive duration was positively related to their body mass at departure, indicating that smaller seals were limited to shorter dive durations, perhaps as a result of their lesser aerobic capacity. All seals often exceeded ... |
format |
Dataset |
title |
Southern Elephant Seal Foraging in the Southern Ocean |
title_short |
Southern Elephant Seal Foraging in the Southern Ocean |
title_full |
Southern Elephant Seal Foraging in the Southern Ocean |
title_fullStr |
Southern Elephant Seal Foraging in the Southern Ocean |
title_full_unstemmed |
Southern Elephant Seal Foraging in the Southern Ocean |
title_sort |
southern elephant seal foraging in the southern ocean |
publisher |
Australian Ocean Data Network |
url |
https://researchdata.edu.au/southern-elephant-seal-southern-ocean/2822382 |
op_coverage |
Spatial: westlimit=130; southlimit=-73.0; eastlimit=-20; northlimit=-38.0 Temporal: From 1991-09-30 to 1992-03-31 |
long_lat |
ENVELOPE(171.000,171.000,-50.667,-50.667) |
geographic |
Antarctic Southern Ocean The Antarctic Campbell Plateau |
geographic_facet |
Antarctic Southern Ocean The Antarctic Campbell Plateau |
genre |
Antarc* Antarctic Elephant Seal Elephant Seals Macquarie Island Mirounga leonina Southern Elephant Seal Southern Elephant Seals Southern Ocean walrus* |
genre_facet |
Antarc* Antarctic Elephant Seal Elephant Seals Macquarie Island Mirounga leonina Southern Elephant Seal Southern Elephant Seals Southern Ocean walrus* |
op_source |
AU/AADC > Australian Antarctic Data Centre, Australia |
op_relation |
https://researchdata.edu.au/southern-elephant-seal-southern-ocean/2822382 ASAC_468 Dataset DOI |
_version_ |
1784260609093664768 |