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Periodicity in foraging areas of leopard seals in the region south of Macquarie Island
Entry ID: ASAC_2268

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Abstract: ---- Public Summary from Project ----
Leopard seals are usually seen in the pack-ice where they pup on the ice and where they must first face life at sea. However at Macquarie Island, well to the north of the ice, for 50 years now there has been the odd phenomenon of 'Leopard seal years'. At seemingly semi-regular periods (~3-4 years) considerable numbers (can be greater than 100) of leopard seals ... View entire text
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Geographic Coverage
Spatial coordinates   
  N: -54.62   S: -54.62   E: 158.86   W: 158.85

Data Set Citation
Dataset Originator/Creator: Burton H.
Dataset Title: Periodicity in foraging areas of leopard seals in the region south of Macquarie Island
Dataset Series Name: CAASM Metadata
Dataset Release Date: 2016-04-30
Dataset Publisher: Australian Antarctic Data Centre
Online Resource:
Temporal Coverage
Start Date: 1900-01-31
Quality The data quality is variable between years, some years had dedicated data collectors and others did not - hence data were collected only sporadically in those years, if at all.

The detail of information recorded on the sightings also varied between year to year, as did the format of the recordings. The format and the physical condition of the records resulted in some information on the sightings being omitted from this dataset due to illegibility and unreadability. The affect of this on the overall quality of the data would be minimal.

Data collection began in earnest in 1948, but there are some sporadic records earlier than this dating back to 1900.

For further information on the quality of the data, refer to the references below.
Access Constraints The data currently is not publicly available. Contact the custodian for access.
Use Constraints This data set conforms to the PICCCBY Attribution License

Please follow instructions listed in the citation reference provided at when using these data.
Data Set Progress
Data Center
Australian Antarctic Data Centre, Australia Supplemental Info
Data Center URL:

Data Center Personnel
Phone: +61 3 6232 3244
Fax: +61 3 6232 3351
Email: metadata at
Contact Address:
Australian Antarctic Division
203 Channel Highway
City: Kingston
Province or State: Tasmania
Postal Code: 7050
Country: Australia
Distribution Media: HTTP
Distribution Size: 108KB
Distribution Format: .xls
Rounsevell, D. (1988), Periodic irruptions of itinerant leopard seals within the Australasian sector of the Southern Ocean, 1976-86, Papers and Proceedings of the Royal Society of Tasmania, 122, 1, 189-191

Rounsevell, D., Eberhard, I. (1980), Leopard seals, Hydrurga leptonyx (Pinnipedia), at Macquarie Island from 1949 to 1979, Australian Journal of Wildlife Research, 7, 403-415
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2000-08-15
Last DIF Revision Date: 2016-11-18
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