RAiD 10.71676/05f6fdfe
NESP MaC Project 2.6 - Mapping critical Australian sea lion habitat to assess ecological value and risks to population recovery (SARDI)

Dates

Start Date
01-Jun-2022
End Date
31-Mar-2024

Titles

Title
NESP MaC Project 2.6 - Mapping critical Australian sea lion habitat to assess ecological value and risks to population recovery (SARDI)
Title Type
Primary
Title Type:
Primary
 Preferred full description or abstract.
Start Date
01-Jun-2022
End Date
31-Mar-2024
Language
English

Descriptions

Description

Australian sea lion populations have declined by more than 60% over the past four decades. Abundance and trends vary markedly across the species range, suggesting that localised risk profiles from threats - such as bycatch, marine pollution, and habitat degradation - vary at small spatial scales. Fine scale variation in habitat use is thought to underpin these differences, yet knowledge about Australian sea lion's dependency on key habitats and their vulnerability to human impacts is limited.

This project deployed compact animal-borne cameras with GPS and motion sensors on eight adult female sea lions at two key colonies: Seal Bay (Southern Kangaroo Island Marine Park) and Olive Island (Western Eyre Marine Park). The devices recorded nearly 80 hours of footage over 560 km of seabed, identifying six distinct benthic habitat types, including previously unmapped rocky reefs and kelp forests.

The footage was used to develop fine-scale habitat maps using machine learning models, providing a valuable baseline for assessing ecological value, foraging intensity, and the effectiveness of protected areas. This innovative approach complements traditional seafloor mapping and offers a scalable, cost-effective method for locating and monitoring critical habitats for endangered marine species.

The results directly inform recovery planning, fisheries management, marine park design, and the identification of Biologically Important Areas. Ongoing camera deployments at Seal Bay and new sites along the western Eyre Peninsula will improve understanding of sea lion colony-specific behaviours and contribute to long-term monitoring of habitat change, diet, and emerging threats.
Description Type

Primary
Description Type:

Primary

 Preferred full description or abstract
Language
English

Contributors

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-Jun-2022
End Date
31-Mar-2024
Roles
No Entries
Name Roger Kirkwood ORCID Logo (unauthenticated)
Contributor ID ORCID Logo https://orcid.org/0000-0003-4221-4050 (unauthenticated)
Leader
No
Contact
No
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-Jun-2022
End Date
31-Mar-2024
Roles
No Entries
Name Sean Connell ORCID Logo (unauthenticated)
Contributor ID ORCID Logo https://orcid.org/0000-0002-5350-6852 (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-Jun-2022
End Date
31-Mar-2024
Roles
No Entries
Name Gretchen Grammer ORCID Logo (unauthenticated)
Contributor ID ORCID Logo https://orcid.org/0000-0003-1605-8007 (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-Jun-2022
End Date
31-Mar-2024
Roles
No Entries
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-Jun-2022
End Date
31-Mar-2024
Roles
No Entries

Organisations

Roles
Role
Lead Research Organisation
Role:
Lead Research Organisation
 The research organistion administratively responsible for the project; administering organisation
Start Date
2022-06-01
End Date
2024-03-31
Roles
Role
Other Research Organisation
Role:
Other Research Organisation
 A research organisation such as a university participating in the project, usually hosting Contributors and providing other support
Start Date
2022-06-01
End Date
2024-03-31

RelatedObjects

Citation

Goldsworthy, S., Angelakis, N., & Kirkwood, R. (2024). Mapping critical Australian sea lion habitat with animal-borne instruments [Data set]. Institute for Marine and Antarctic Studies.
Type
Dataset
Categories
Output

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
Wildlife and habitat management (410407)
Keywords
Text
threatened species
Language
eng
Text
Australian sea lion
Language
eng
Text
risk assessment
Language
eng
Text
ecological value
Language
eng
Subject
Marine and estuarine ecology (incl. marine ichthyology) (310305)
Keywords
Text
habitat mapping
Language
eng

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