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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

Identifier

Title
Information and documentation - Digital object identifier system
Citation identifier
ISO 26324:2012

Code
10.26179/nbbz-nv97
Codespace
doi.org
Description
Digital Object Identifier (DOI)

Publisher

Australian Antarctic Data Centre

Principal investigator

Murdoch University - Smith, Joshua
Western Australia
Australia
ROR ID >

ORCID ID >

Principal investigator

Australian Antarctic Division - Double, Michael
Tasmania
Australia
ROR ID >

ORCID ID >

Name
CAASM Metadata
Website
https://data.aad.gov.au/metadata/records/NESP_2022_SRW

Purpose
Assessing the status and trend of Australia's southern right whale populations
Status
Completed

Custodian

AU/AADC > Australian Antarctic Data Centre, Australia - AADC, DATA OFFICER (DATA CENTER CONTACT)
Australian Antarctic Division
Tasmania
Australia
+61 3 6232 3244
+61 3 6232 3351 (facsimile)

Point of contact

Murdoch University - Smith, Joshua
Western Australia
Australia
ROR ID >

ORCID >

Spatial resolution

Spatial resolution
10

Spatial resolution

Spatial resolution
10
Temporal resolution
P0Y5M0DT0H0M0S
Topic category
  • Oceans
  • Biota

Extent



Extent

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

Principal investigator

Murdoch University - Smith, Joshua
Western Australia
Australia
ROR ID >

ORCID >

Collaborator

Australian Antarctic Division - Double, Michael
ROR ID >

ORCID >

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
Linkage
Creative Commons by Attribution logo

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
Cite data as: Smith, J. and Double, M. (2023) 2022 Aerial survey data of southern right whales (Eubalaena australis) off southern Australia, Australian Antarctic Data Centre. https://doi.org/10.26179/nbbz-nv97
Language
English
Character encoding
UTF8

Distribution Information

Distributor

Distributor

AU/AADC > Australian Antarctic Data Centre, Australia - AADC, DATA OFFICER (DATA CENTER CONTACT)
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia
+61 3 6232 3244
+61 3 6232 3351 (facsimile)

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

Australian Antarctic Division

Owner

AADC
Parent metadata
  • NESP MaC Project 2.7 - Aerial survey of the Southern Right Whale ‘western’ sub-population off southern Australia

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)
2025-02-03T19:30:03
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

Keywords


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Associated resources

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