IMAS Metadata Catalogue
2022 Aerial survey data of southern right whales (Eubalaena australis) off southern Australia (NESP MaC 2.7)
Aerial surveys of southern right whales (Eubalaena australis) were undertaken off the southern Australian coast to monitor the recovery of this endangered species following extreme 19th and 20th Century commercial whaling. The aerial survey was undertaken in the coastal waters from Perth (Western Australia) to Ceduna (South Australia) between the 12th and 19th August 2022, to maintain the annual series of surveys and inform the long-term population trend. The survey resulted in a total 526 whales sighted, consisting of 247 cow-calf pairs, 31 unaccompanied adults and 1 yearling. The ‘western’ population of southern right whales in Australian waters is increasing in size (~5.3% per year based on female/calf pairs and a population estimate of 2675 whales) based on the long-term population trend data from the annual aerial surveys. This represents the majority of the Australian population given the very low numbers in the ‘eastern’ population. The 2022 surveys recorded the lowest number of unaccompanied animals (i.e. males and females without a calf) ever throughout the time-series of the annual aerial surveys since 1993 when survey coverage between Cape Leeuwin and Ceduna first began. Across this time series, there is a particularly notable decline in sightings of unaccompanied animals over the past five years. It is currently unclear what factors account for the decline in these sightings or may influence the variation in numbers of unaccompanied animals on the southern Australian coast. Lower than expected counts in the long-term data may provide evidence of a slowing population growth rate, which can only be assessed by continued annual population surveys to assess population trend data.
Simple
Identification info
- Date (Publication)
- 2023-06-28
- 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:10.26179/nbbz-nv97
Originator
Publisher
Principal investigator
Principal investigator
Collaborator
- Name
- CAASM Metadata
- Purpose
- Assessing the status and trend of Australia's southern right whale populations
- Status
- Completed
Custodian
Spatial resolution
- Spatial resolution
- 10
Spatial resolution
- Spatial resolution
- 10
- Temporal resolution
-
P0Y5M0DT0H0M0S
- Topic category
-
- Oceans
- Biota
))
- Description
- Temporal Coverage
Temporal extent
- Time period
- 2022-08-12 2022-08-19
- Title
- Relative abundance of the ‘western’ population of southern right whales (Eubalaena australis) from an aerial survey off southern Australia: Final Report on 2022 survey.
- Date (Publication)
- 2023
Author
- Name
- Report to the National Environmental Science Program
- NASA/GCMD Earth Science Keywords
-
- EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MAMMALS > CETACEANS > BALEEN WHALES
- Keywords
-
- SOUTHERN RIGHT WHALES
- AERIAL SURVEY
- NASA/GCMD Earth Science Keywords
-
- CAMERAS
- NASA/GCMD Earth Science Keywords
-
- CESSNA 172 SKYHAWK
- NASA/GCMD Earth Science Keywords
-
- AMD/AU
- AMD
- CEOS
- NASA/GCMD Earth Science Keywords
-
- OCEAN > SOUTHERN OCEAN
- CONTINENT > AUSTRALIA/NEW ZEALAND > AUSTRALIA
- GEOGRAPHIC REGION > POLAR
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=NESP_2022_SRW when using these data. Please acknowledge Joshua Smith Murdoch University and Mike Double AAD and recognise the long-standing contribution of John Bannister Western Australian Museum to this dataset.
- Language
- English
- Character encoding
- UTF8
Distribution Information
Distributor
Distributor
Distributor
- Fees
- Free
- Planned available datetime
- 2023-06-28T00:00:00
- Units of distribution
- kb
- Transfer size
- 39
- Distribution format
-
- Excel
- OnLine resource
-
GET DATA > DIRECT DOWNLOAD
Download the dataset.
- OnLine resource
-
VIEW RELATED INFORMATION
Citation reference for this metadata record and dataset.
Resource lineage
- Statement
- Photo quality will be variable and requires assessment prior to assimilation into photo-identification catalogue.
- Hierarchy level
- Dataset
- Maintenance and update frequency
- As needed
- Maintenance note
- 2023-06-26 - record created by Josh Smith.
Metadata
- Metadata identifier
- urn:uuid/NESP_2022_SRW
- Language
- English
- Character encoding
- UTF8
Sponsor
Owner
- Parent metadata
Type of resource
- Resource scope
- Dataset
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- a2f3477c-ce9f-4659-9d84-39b887de1ea6
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Date (Last Revision)
- 2023-06-26T03:04:37
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/NESP_2022_SRW
Point of truth for the metadata record
- Date info (Revision)
- 2023-09-14T11:27:20
- Date info (Creation)
- 2023-06-26T00:00:00
- Date info (Last Update)
- 2023-06-26
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
