• IMAS Metadata Catalogue
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Franklin and Zeehan Marine Park fine-scale seafloor substrate mapping

Fine-scale bathymetry mapping was conducted in the Franklin and Zeehan Australian Marine Parks (AMPs) located off the west coast of Tasmania, Australia. The primary objective of this mapping exercise was to map seafloor features of the shelf areas of these AMPs for the first time and to understand the distribution of benthic habitats and key sessile invertebrate species within these areas.


Characterisation of the seafloor was undertaken in two phases. The first stage used multibeam sonar to comprehensively map the study areas, extracting bathymetry and backscatter products. This was followed by extensive ground validation undertaken by a panoramic stereo drop-camera system that also recorded the presence of dominant sessile invertebrate fauna as well as benthic/demersal fish species.


This record describes and provides data access to the fine-scale substratum mapping extracted from the combination of multibeam bathymetry and video ground-truthing data. Access to the (1) bathymetry survey data; and (2) annotated seafloor imagery, are provided through the 'Download and Links' section of this record.

Simple

Identification info

Date (Publication)
2025-07-02T00:00:00

Identifier

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

Code
10.25959/JDWW-7M96
Codespace
doi.org
Description
Digital Object Identifier (DOI)

Principal investigator

Institute for Marine and Antarctic Studies - Monk, Jacquomo
University of Tasmania
ROR ID >

ORCID >

Principal investigator

Institute for Marine and Antarctic Studies - Barrett, Neville
University of Tasmania
ROR ID >

ORCID >

Collaborator

Institute for Marine and Antarctic Studies - Bastiaansen, Ashlee
University of Tasmania
ROR ID >

ORCID >

Credit
Director of National Parks (Parks Australia), Institute for Marine and Antarctic Studies
Status
Completed

Point of contact

Institute for Marine and Antarctic Studies - Monk, Jacquomo
University of Tasmania
Tasmania
Australia
ROR ID >

ORCID >

Point of contact

Institute for Marine and Antarctic Studies - Barrett, Neville
University of Tasmania
Tasmania
Australia
ROR ID >

ORCID >

Topic category
  • Geoscientific information

Extent

N
S
E
W


N
S
E
W


Temporal extent

Time period
2022-02-28 2022-03-21

Vertical element

Minimum value
35
Maximum value
260
Identifier
EPSG::5715
Name
MSL depth
Maintenance and update frequency
Not planned
Keywords (Theme)
  • Habitat mapping
  • Substrate classification
  • Multibeam sonar
  • Marine Parks
  • BF2022_v01
Global Change Master Directory Earth Science Keywords, Version 8.5
  • BATHYMETRY/SEAFLOOR TOPOGRAPHY
  • BATHYMETRY
  • BENTHIC

Resource constraints

Linkage
https://licensebuttons.net/l/by/4.0/88x31.png

License Graphic

Title
Creative Commons Attribution 4.0 International License
Alternate title
CC-BY
Edition
4.0


>

Website
https://creativecommons.org/licenses/by/4.0/

License Text

Other constraints
Cite data as: Monk, J., Barrett, N., & Bastiaansen, A. (2023). Franklin and Zeehan Marine Park fine-scale seafloor substrate mapping [Data set]. Institute for Marine and Antarctic Studies. https://doi.org/10.25959/JDWW-7M96
Other constraints
Please also cite the associated project report when using this data: Barrett, Neville; Monk, Jacquomo; Bastiaansen, Ashlee (2023). Franklin and Zeehan Marine Park Multibeam mapping and drop-camera validation for Parks Australia. University of Tasmania. Report. https://doi.org/10.25959/24719955.v1
Language
English
Character encoding
UTF8
Supplemental Information
Barrett, Neville; Monk, Jacquomo; Bastiaansen, Ashlee (2023). Franklin and Zeehan Marine Park Multibeam mapping and drop-camera validation for Parks Australia. University of Tasmania. Report. https://doi.org/10.25959/24719955.v1

Distribution Information

Distribution format
  • Geotiff

OnLine resource
DATA ACCESS - Zeehan & Franklin Marine Parks fine-scale substrate mapping [browse files for download]

OnLine resource
seamap:SeamapAus_TAS_FranklinMP_substrata_2022_grp

MAP - Franklin Marine Park substrate classification (WMS)

OnLine resource
seamap:SeamapAus_TAS_ZeehanMP_substrata_2022_grp

MAP - Zeehan Marine Park fine-scale substrate mapping (WMS)

OnLine resource
View and interact with data on Seamap Australia online mapping portal

OnLine resource
View bathymetry data on AusSeabed

OnLine resource
Download bathymetry data [GA eCat record]

OnLine resource
View drop camera imagery on SQUIDLE+

OnLine resource
View drop camera deployments in map on SQUIDLE+

OnLine resource
Final Project Report

Barrett, Neville; Monk, Jacquomo; Bastiaansen, Ashlee (2023). Franklin and Zeehan Marine Park Multibeam mapping and drop-camera validation for Parks Australia. University of Tasmania. Report. https://doi.org/10.25959/24719955.v1

Resource lineage

Statement
๐— ๐˜‚๐—น๐˜๐—ถ๐—ฏ๐—ฒ๐—ฎ๐—บ ๐˜€๐—ผ๐—ป๐—ฎ๐—ฟ ๐—ฎ๐—ป๐—ฑ ๐—ฐ๐—ผ๐˜ƒ๐—ฎ๐—ฟ๐—ถ๐—ฎ๐˜๐—ฒ๐˜€ Multibeam echosounder bathymetry (MBES) and backscatter were acquired by CSIRO and IMAS from the UTAS vessel Bluefin in Feb-Mar 2022. The entire Zeehan MP was mapped to the shelf break, overlapping prior CSIRO mapping of the upper slope and shelf crest. Approximately 50% of the Franklin MP was mapped before bad weather prevented completion of the survey. Bathymetry data was processed by at 2 metre resolution. ๐—”๐˜‚๐˜๐—ผ๐—บ๐—ฎ๐˜๐—ฒ๐—ฑ ๐—ฒ๐˜…๐˜๐—ฟ๐—ฎ๐—ฐ๐˜๐—ถ๐—ผ๐—ป ๐—ผ๐—ณ ๐˜€๐˜‚๐—ฏ๐˜€๐˜๐—ฟ๐—ฎ๐˜๐—ฒ ๐—ฐ๐—น๐—ฎ๐˜€๐˜€๐—ฒ๐˜€ Habitat models were developed using terrain and backscatter variables derived from the MBES data. The ArcGIS packages โ€˜Spatial Analyst' and โ€˜Benthic Terrain Modellerโ€™, and R โ€˜WhiteBoxToolsโ€™ were used. ๐——๐—ฟ๐—ผ๐—ฝ ๐—ฐ๐—ฎ๐—บ๐—ฒ๐—ฟ๐—ฎ ๐˜ƒ๐—ฎ๐—น๐—ถ๐—ฑ๐—ฎ๐˜๐—ถ๐—ผ๐—ป For validation of the automated substrata classification, ~300 spatially balanced drop camera deployments (BOSS) were deployed per park, focusing on high-relief areas. A five-camera system (four oblique, one vertical) recorded 5-minute videos at each site using GoPro Hero 9 cameras to allow for observations of associated benthic/demersal fish. Still frames were annotated using 20-point overlays in the lower frame, applying the CATAMI scheme. Substrate types were grouped into three Seamap Australia (https://vocabs.ardc.edu.au/viewById/129) substratum classes: (1) Hard โ€“ 100% consolidated reef (2) Mixed โ€“ combination of hard and soft (3) Soft โ€“ unconsolidated sediment without visible epibenthos ๐—ฆ๐˜‚๐—ฏ๐˜€๐˜๐—ฟ๐—ฎ๐˜๐—ฒ ๐—บ๐—ผ๐—ฑ๐—ฒ๐—น๐—น๐—ถ๐—ป๐—ด Random Forest models were implemented in R (RandomForest package), using 60:40 training:test data splits. โ€ข Franklin MP: 1000 trees, 10-node size, max 5 features/split โ€ข Zeehan MP: 4 trees, 10-node size, max 1 feature/split Model accuracy was assessed using 10-fold cross-validation: โ€ข Franklin MP: 71% overall accuracy, kappa = 0.55 โ€ข Zeehan MP: 71% overall accuracy, kappa = 0.47 ๐—™๐—ถ๐—ป๐—ฎ๐—น ๐—ฑ๐—ฎ๐˜๐—ฎ ๐—ฝ๐—ฟ๐—ฒ๐—ฝ๐—ฎ๐—ฟ๐—ฎ๐˜๐—ถ๐—ผ๐—ป For publication, depth thresholds of 30-70 m and 70-200 m were then applied to the model to split reef habitats into mesophotic and rariphotic reefs, respectively, following Parks Australiaโ€™s Natural Value Ecosystems classification (Hayes et al. 2021).
Hierarchy level
Dataset
Hierarchy level
Dataset

Platform

Identifier

Code
Maxar's WorldView-2/3

Instrument

Identifier

Code
Multispectral Satellite Sensor

Metadata

Metadata identifier
urn:uuid/6eb8ab22-6ba4-4c5a-8454-73e279f751f0

Language
English
Character encoding
UTF8

Distributor

IMAS Data Manager -
Institute for Marine and Antarctic Studies
Private Bag 129
Hobart
Tasmania
7001
Australia
Institute for Marine and Antarctic Studies (IMAS) website >

Parent metadata
  • Seamap Australia National Benthic Habitat Layer (NBHL)

Type of resource

Resource scope
Dataset
Name
IMAS Dataset level record
Metadata linkage
https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/6eb8ab22-6ba4-4c5a-8454-73e279f751f0

Point of truth URL of this metadata record

Date info (Creation)
2023-06-30T00:00:00
Date info (Revision)
2025-07-03T15:39:10

Metadata standard

Title
ISO 19115-3:2018
 
 

Overviews

Parks Australia logo
Franklin Marine Park substrate
Zeehan Marine Park substrate

Spatial extent

N
S
E
W


N
S
E
W


Keywords

BF2022_v01 Habitat mapping Marine Parks Multibeam sonar Substrate classification
Global Change Master Directory Earth Science Keywords, Version 8.5
BATHYMETRY BATHYMETRY/SEAFLOOR TOPOGRAPHY BENTHIC

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Read here the full details and access to the data.

Associated resources

Not available


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