project

NESP MaC Project 3.6 - Exploring the distribution and ecological value of seagrass at the Furneaux Islands, Tasmania, 2023-2025 (IMAS, Deakin Uni)


Provided by   University of Tasmania, Australia

Research Project

Researchers: Cozens, Zoe (collaborator) ,  Emma Flukes (Point of contact) ,  Institute for Marine and Antarctic Studies (Associated with) ,  Maher, Fiona (collaborator) ,  Tasmanian Aboriginal Centre (Associated with)
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Full description This record provides an overview of the NESP Marine and Coastal Hub Research Plan 2023 project "Exploring the distribution and ecological value of seagrass at the Furneaux Islands, Tasmania". For specific data outputs from this project, please see child records associated with this metadata.
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Seagrass meadows are a dominant marine ecosystem of Tayaritja (the Furneaux Group of Islands) in north-eastern Tasmania. Historical coarse-scale mapping indicated extensive beds of Posidonia, Amphibolis, Heterozostera and Zostera, with the Posidonia and Amphibiolis beds being potentially some of the largest and deepest extents in temperate Australian waters. These habitats provide ecological, social, cultural and economic values, including habitat for fish and for maireener shells used by Pakana people for traditional necklace making.

This project worked in partnership with the Tasmanian Aboriginal Centre (TAC) to improve knowledge of seagrass extent, composition, population structure, ecological condition and blue carbon value around Tayaritja. Existing data were collated to guide survey design for mapping, and high-resolution satellite remote sensing was used to map seagrass beds down to a depth of approximately 30 metres, including intertidal lagoon systems associated with the Logan Lagoon Ramsar site. Field surveys, including video observations and rhizome coring, were used to validate satellite-derived maps and collect ecological samples.

Outputs from this project include spatial layers of seagrass extent, variability and species composition, classified using the Seamap Australia National Benthic Habitat Classification Scheme. Rhizome samples were used to assess blue carbon storage, genetic connectivity and diversity, population structure, reproductive strategies, and relationships between seagrass, animal and microbial communities in shallow waters.

The project developed new standards-based approaches for collecting, analysing, managing and reporting seagrass data, alongside training and guidance for the TAC land and sea management team and Pakana Rangers. The resulting methods and datasets will support Indigenous-led monitoring and management of the proposed Tayaritja Sea Country Indigenous Protected Area (IPA), and improve understanding of wetland values relevant to Ramsar reporting and future blue carbon opportunities.

Outputs
• Seagrass extent and composition map for Furneaux group [dataset]
• Seagrass imagery and associated seafloor annotations [dataset]
• Final project report [written]

Lineage Maintenance and Update Frequency: asNeeded

Notes Credit
This project is funded by the Australian Government Department of Climate Change, the Environment, Energy & Water (DCCEEW) through the NESP Marine and Coastal Hub. In addition to NESP (DCCEEW) funding, this project is matched by an equivalent amount of in-kind support and co-investment from project partners and collaborators.

Notes Purpose
To map the extent and blue carbon value of seagrass beds in the Furneaux group, Tasmania.

Data time period: 2023-01-01 to 2025-05-30

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Subjects
Amphibolis | Biological Sciences | Ecology | Environmental Science and Management | Environmental Sciences | Halophila | Heterozostera | Indigenous values | MARINE ECOSYSTEMS | Marine and Estuarine Ecology (Incl. Marine Ichthyology) | National Environmental Science Program (NESP) Marine and Coastal Hub | Plant Biology | Phycology (Incl. Marine Grasses) | Population Ecology | Posidonia | SEAGRASS | Wildlife and Habitat Management | Zostera | biota | blue carbon | marine habitat mapping | regional marine ecosystems | seagrass | underwater video |
Other Information
(Project page on NESP Marine and Coastal Hub website)

url : https://www.nespmarinecoastal.edu.au/project/3-6/

(Department of Climate Change, Energy, the Environment and Water: NESP MaC Hub website)

url : https://www.dcceew.gov.au/science-research/nesp/hub-marine-coastal

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Licence & Rights

OPEN Creative Commons Attribution 4.0 International License View details

Licence

Creative Commons Attribution 4.0 International License

Rights Statement

The data collections described in this record are funded by the Department of Climate Change, Energy, the Environment and Water (DCCEEW) through the NESP Marine and Coastal Hub.

Access rights

ACN 633 798 857