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Elephant Seal Sightings, Macquarie Island
Burton, H. (1999, updated 2006) Macquarie Island Elephant Seal Populations 1950 to 1965, Australian Antarctic Data Centre - CAASM Metadata (
Contact: Watts, Dave

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Availability: Creative Commons License This dataset is licensed under a Creative Commons Attribution 4.0 International License.

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-weighing 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.

Biology > Mammals
Marine/Coastal, PSE, Macquarie I., Mirounga leonina (Linnaeus, 1758)

Geographical coverage
PSE, Macquarie I. [Marine Regions]

Temporal coverage
From 1950 on [In Progress]

Taxonomic coverage
Mirounga leonina (Linnaeus, 1758) [WoRMS]

Presence of biota

Australian Antarctic Division (AAD), moredata managerdata creator

Related datasets
Published in:
AntOBIS: Antarctic Ocean Biodiversity Information System, more

Dataset status: In Progress
Data type: Data
Data origin: Monitoring: field survey
Metadatarecord created: 2006-09-15
Information last updated: 2015-01-23
All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy