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RAiD https://raid.org/10.71676/996cc502
NESP MaC Project 3.13 - Eastern Grey Nurse Shark population abundance and trend, 2023-2025 (CSIRO, NSW DPI)

Dates

Start Date
01-Jan-2023
End Date
28-Feb-2025

Titles

Title
NESP MaC Project 3.13 - Eastern Grey Nurse Shark population abundance and trend, 2023-2025 (CSIRO, NSW DPI)
Title Type
Primary
Title Type:
Primary
 Preferred full description or abstract.
Start Date
01-Jan-2023
End Date
28-Feb-2025
Language
English

Descriptions

Description

Grey nurse sharks are a nationally significant threatened species, with Australia’s eastern population listed as Critically Endangered under the EPBC Act. The Recovery Plan for the Grey Nurse Shark identifies the need for robust estimates of abundance, population trend, age structure, survival and range, particularly where conservation measures such as spatial closures and protection of aggregation sites are in place.

This project refined abundance and trend estimates for the eastern Australian grey nurse shark population by combining biopsy sampling, genetic analysis, stereo-video length measurement and statistical modelling. Tissue samples from more than 300 sharks were analysed using close-kin mark-recapture methods to identify family relationships and estimate adult population size. Stereo-video measurements supported improved age estimation using Australian-specific length-at-age models, reducing reliance on overseas growth data.

Findings from the project provide a stronger evidence base for Australian and New South Wales government decision-making on grey nurse shark recovery and conservation. Refined estimates of adult abundance and population trend (described in the Final Project Report) enables reduced uncertainty in recovery assessments, and supports evaluation of current management arrangements, including spatial protections for aggregation sites.
Description Type

Primary
Description Type:

Primary

 Preferred full description or abstract
Language
English

Contributors

Name Russell Bradford ORCID Logo (unauthenticated)
Contributor ID ORCID Logo https://orcid.org/0000-0003-0291-3180 (unauthenticated)
Leader
Yes
Contact
Yes
Positions
Position
Principal or Chief Investigator
Position:
Principal or Chief Investigator
 Principal investigator refers to the person(s) in charge of a research project
Start Date
01-Jan-2023
End Date
28-Feb-2025
Roles
No Entries
Leader
Yes
Contact
Yes
Positions
Position
Principal or Chief Investigator
Position:
Principal or Chief Investigator
 Principal investigator refers to the person(s) in charge of a research project
Start Date
01-Jan-2023
End Date
28-Feb-2025
Roles
No Entries
Name Emma L Westlake ORCID Logo (unauthenticated)
Contributor ID ORCID Logo https://orcid.org/0000-0001-8439-2643 (unauthenticated)
Leader
No
Contact
No
Positions
Position
Co-investigator or Collaborator
Position:
Co-investigator or Collaborator
 A Co-Investigator is a senior or key investigator involved in a research project who does not have the overall responsibility and authority of the Principal Investigator
Start Date
01-Jan-2023
End Date
28-Feb-2025
Roles
No Entries
Name Pierre Feutry ORCID Logo (unauthenticated)
Contributor ID ORCID Logo https://orcid.org/0000-0001-8492-5382 (unauthenticated)
Leader
No
Contact
No
Positions
Position
Co-investigator or Collaborator
Position:
Co-investigator or Collaborator
 A Co-Investigator is a senior or key investigator involved in a research project who does not have the overall responsibility and authority of the Principal Investigator
Start Date
01-Jan-2023
End Date
28-Feb-2025
Roles
No Entries
Name Shane Baylis ORCID Logo (unauthenticated)
Contributor ID ORCID Logo https://orcid.org/0000-0002-2373-1311 (unauthenticated)
Leader
No
Contact
No
Positions
Position
Co-investigator or Collaborator
Position:
Co-investigator or Collaborator
 A Co-Investigator is a senior or key investigator involved in a research project who does not have the overall responsibility and authority of the Principal Investigator
Start Date
01-Jan-2023
End Date
28-Feb-2025
Roles
No Entries
Name Benjamin Mayne ORCID Logo (unauthenticated)
Contributor ID ORCID Logo https://orcid.org/0000-0002-6750-8832 (unauthenticated)
Leader
No
Contact
No
Positions
Position
Co-investigator or Collaborator
Position:
Co-investigator or Collaborator
 A Co-Investigator is a senior or key investigator involved in a research project who does not have the overall responsibility and authority of the Principal Investigator
Start Date
01-Jan-2023
End Date
28-Feb-2025
Roles
No Entries
Leader
No
Contact
No
Positions
Position
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Position:
Co-investigator or Collaborator
 A Co-Investigator is a senior or key investigator involved in a research project who does not have the overall responsibility and authority of the Principal Investigator
Start Date
01-Jan-2023
End Date
28-Feb-2025
Roles
No Entries
Name Rasanthi Gunasekera ORCID Logo (unauthenticated)
Contributor ID ORCID Logo https://orcid.org/0000-0003-1990-2752 (unauthenticated)
Leader
No
Contact
No
Positions
Position
Co-investigator or Collaborator
Position:
Co-investigator or Collaborator
 A Co-Investigator is a senior or key investigator involved in a research project who does not have the overall responsibility and authority of the Principal Investigator
Start Date
01-Jan-2023
End Date
28-Feb-2025
Roles
No Entries
Name Paul Butcher ORCID Logo (unauthenticated)
Contributor ID ORCID Logo https://orcid.org/0000-0001-7338-6037 (unauthenticated)
Leader
No
Contact
No
Positions
Position
Co-investigator or Collaborator
Position:
Co-investigator or Collaborator
 A Co-Investigator is a senior or key investigator involved in a research project who does not have the overall responsibility and authority of the Principal Investigator
Start Date
01-Jan-2023
End Date
28-Feb-2025
Roles
No Entries
Name Toby Patterson ORCID Logo (unauthenticated)
Contributor ID ORCID Logo https://orcid.org/0000-0002-7150-9205 (unauthenticated)
Leader
No
Contact
No
Positions
Position
Co-investigator or Collaborator
Position:
Co-investigator or Collaborator
 A Co-Investigator is a senior or key investigator involved in a research project who does not have the overall responsibility and authority of the Principal Investigator
Start Date
01-Jan-2023
End Date
28-Feb-2025
Roles
No Entries
Name Rich Hillary ORCID Logo (unauthenticated)
Contributor ID ORCID Logo https://orcid.org/0000-0003-0795-5339 (unauthenticated)
Leader
No
Contact
No
Positions
Position
Co-investigator or Collaborator
Position:
Co-investigator or Collaborator
 A Co-Investigator is a senior or key investigator involved in a research project who does not have the overall responsibility and authority of the Principal Investigator
Start Date
01-Jan-2023
End Date
28-Feb-2025
Roles
No Entries

Organisations

Name
CSIRO Environment

Roles
Role
Lead Research Organisation
Role:
Lead Research Organisation
 The research organistion administratively responsible for the project; administering organisation
Start Date
2023-01-01
End Date
2025-02-28
Name
New South Wales Department of Primary Industries

Roles
Role
Lead Research Organisation
Role:
Lead Research Organisation
 The research organistion administratively responsible for the project; administering organisation
Start Date
2023-01-01
End Date
2025-02-28

RelatedObjects

No Entries

Alternate Identifier

No Entries

Alternate URLs

Related RAiDs

Title
NESP Marine and Coastal Hub (10.71821/418be95a)
Relation
IsPartOf
Relation:
IsPartOf
 Relates a subproject back to its parent project

Access

Type
Open Access
Type:
Open Access
 Open access refers to a resource that is immediately and permanently online, and free for all on the Web, without financial and technical barriers.The resource is either stored in the repository or referenced to an external journal or trustworthy archive.
Language
Text
Embargo Expiry

Subjects

Subject
Marine and estuarine ecology (incl. marine ichthyology) (310305)
Keywords
Text
Close-Kin Mark-Recapture
Language
eng
Text
threatened species
Language
eng
Text
Grey nurse shark
Language
eng
Text
Carcharias taurus
Language
eng
Subject
Wildlife and habitat management (410407)
Keywords
Text
species distribution
Language
eng
Text
population abundance
Language
eng

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