TemperateReefBase Geonetwork Catalogue
Diet and Foraging Area of Antarctic Fur Seals at Heard Island
Antarctic Fur Seals from Heard Island fed mainly on fish, but the prey species changed both seasonally and inter-annually. The majority of prey were pelagic myctophids characteristic of deep oceanic water, and were generally taken in autumn and winter. The only other fish taken in significant numbers was Champsocephalus gunnari which was mostly taken from late winter through early autumn when it was co-dominant in the diet with the Krefftichthys anderssoni. Males and females foraged in different localities and in different parts of the water column. Males foraged mainly to the south of Heard Island in winter usually diving deep by day, feeding on scattering layers. In summer males also fed on the shelf, presumably to the north and east of Heard Island on K. anderssoni at shallow depths primarily at night. Although diet studies provided little evidence of feeding on crustaceans, diving data indicate that some males may travel to Antarctic waters in winter to feed on krill.
The fields in this dataset are:
Months
Species
Scats
Time foraging
Number of Dives
Time Submerged (minutes)
Mean Dive Duration (minutes)
Maximum Depth (metres)
Simple
Identification info
- Alternate title
- Diet and Foraging Area of Antarctic Fur Seals at Heard Island
- Date (Publication)
- 2003-03-17
- Edition
- 1
- Citation identifier
-
Dataset DOI
- Title
- Information and documentation - Digital object identifier system
- Date (Publication)
- 2012-04-23
- Citation identifier
- ISO 26324:2012
- Citation identifier
- doi:10.4225/15/5812874d9ab36
Originator
Publisher
Principal investigator
Collaborator
- Name
- CAASM Metadata
- Status
- Completed
Custodian
- Topic category
-
- Biota
- Oceans
Extent
))
Extent
- Description
- Temporal Coverage
Temporal extent
- TimePeriod
- 1992-02-01 1993-03-31
Extent
- Description
- Vertical Extent - Depth
Vertical element
- Minimum value
- 0
- Maximum value
- 444
- Identifier
- urn:x-ogc:def:cs:EPSG:6498
- Name
- Vertical CS. Axis: depth (D). Orientation: down. UoM: m.
- Identifier
- urn:x-ogc:def:axis:EPSG:113
- Name
- depth
- NASA/GCMD Earth Science Keywords
-
- EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES
- EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MAMMALS
- EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MAMMALS > CARNIVORES > SEALS/SEA LIONS/WALRUSES
- Keywords
-
- DEPTH
- DIVE DURATION
- FORAGING
- FUR SEALS
- FISH
- HEARD ISLAND
- NUMBER OF DIVES
- MONTHS
- SCATS
- SOUTHERN OCEAN
- SPECIES
- TIME FORAGING
- TIME SUBMERGED
- NASA/GCMD Earth Science Keywords
-
- VISUAL OBSERVATIONS
- NASA/GCMD Earth Science Keywords
-
- FIELD SURVEYS
- NASA/GCMD Earth Science Keywords
-
- AMD/AU
- CEOS
- AMD
- NASA/GCMD Earth Science Keywords
-
- OCEAN > SOUTHERN OCEAN
- GEOGRAPHIC REGION > POLAR
- OCEAN > SOUTHERN OCEAN > HEARD AND MCDONALD ISLANDS
Resource constraints
- Use limitation
- This metadata record is publicly available.
Resource constraints
- Access constraints
- licence
- Other constraints
- These data are publicly available for download from the provided URL.
Resource constraints
- File type
- Portable Network Graphic
- Title
- Attribution 4.0 International (CC BY 4.0)
- Website
-
https://creativecommons.org/licenses/by/4.0/legalcode
Legal code for Creative Commons by Attribution 4.0 International license
- Use constraints
- licence
- Other constraints
- This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_466 when using these data.
- Language
- English
- Character encoding
- UTF8
Distribution Information
Distributor
Distributor
Distributor
- Fees
- free
- Planned available datetime
- 2003-03-17T00:00:00
- Units of distribution
- kb
- Transfer size
- 12
- Distribution format
-
- .xls
- OnLine resource
-
GET DATA
Download page for the Australian Antarctic Data Centre
- OnLine resource
-
PROJECT HOME PAGE
Public information for ASAC project 466
- OnLine resource
-
VIEW RELATED INFORMATION
Citation reference for this metadata record and dataset
Resource lineage
- Statement
- Collections were made on a monthly basis from February 1992 through to March 1993. In winter, scats were only collected on new snow because it was difficult to determine the age of scats exposed by frequent snow thaws.
- Hierarchy level
- Dataset
- Maintenance and update frequency
- As needed
- Maintenance note
- 2016-10-27 - record updated by Dave Connell - basic updates. 2019-03-13 - record updated by Dave Connell for ISO compliance. 2022-04-29 - record updated by Dave Connell for ISO compliance.
Metadata
- Metadata identifier
- string/ASAC_466
- Language
- English
- Character encoding
- UTF8
Author
Sponsor
Owner
Type of resource
- Resource scope
- Dataset
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- 2f2662a7-ed02-40b8-b873-dd1e8f8f2391
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Date (Last Revision)
- 2022-04-29T15:13:02
Identifier
- Description
- metadata.extraction_date
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- 8.6
- Metadata linkage
-
http://data.aad.gov.au/metadata/records/ASAC_466
Point of truth for the metadata record
- Date info (Creation)
- 2000-07-28T00:00:00
- Date info (Last Update)
- 2022-04-29
Metadata standard
- Title
- ISO 19115-3
- Edition
- 2014
- Other citation details
- Version 1
- Title
- DIF to ISO 19115-1 Profile
Overviews
Spatial extent
Provided by
