Statewide Marine Habitat Map 2023
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  Statewide Marine Habitat Map 2023

dataset: VIC_MARINE_HABITAT_MAP_2023
The Statewide Marine Habitat Map 2023 was developed by DEECA applying novel machine learning methods that model and predict habitat distributions as well as a mosaic of former mapping products (listed below). The Statewide map represents 24 marine and coastal habitats complexes at Level 3, Victoria's Combined Biotope Classification Scheme (CBiCS) described by Edmunds and Flynn (2015, 2018; 2021). The final map comprises of 83% its area from predictive modelling, with the remaining 17% of area from synthesised existing habitat maps. Predictive Model: A total of 32,998 habitat survey sites (ground-truth records) were used within the model, along with 28 environmental properties mapped at a 10m resolution (including a Digital Elevation Model DEM (VCDEM2021), computed benthic terrain characteristics (toolkit: Walbridge et al. 2018), Chlorophyl a (IMOS 2000a), Sea Surface Temperature SST (IMOS 2000a), Net Primary Productivity NPP (IMOS 2000b), Sediments (Geoscience Australia; Li et al. 2011a,b,c), waves (Liu et al. 2022). To predict the distribution of habitats across Victorian waters the powerful and flexible Random Forest machine learning algorithm was applied. Random Forest is an ensemble model using bagging as the ensemble method and decision trees as the individual model (Breiman 2001). The modelling produced an accuracy (Out-of-bag) of 89%. Map Synthesis: A mosaic of former mapping products that provided higher resolution mapping by aerial imagery, field observations and high-resolution modelling were integrated into the map, classifying habitat according to the CBICS habitat classification scheme at level 3. Assessed and synthesised maps and citations include: Corangamite Coast Marine Habitat December 2009 (ANZVI0803005530); East Gippsland Marine Habitats November 2009 (ANZVI0803003974); Discovery Bay Marine National Park habitat mapping 2006 (ANZVI0803004053); Portland Coastal Habitats (ANZVI0803004236) ; Corner Inlet Mapping Marine National Park North and South 2004 (ANZVI0803004051) ; Merri Marine Sanctuary 2004 (ANZVI0803004058); Western Port Bay Biotope Mapping Fathom Pacific (2016) CBiCS-Mapping. Central Victoria Coastal Habitats (ANZVI0803004135); Mallacoota Coastal Habitats (ANZVI0803004235); Western Port Rhodolite (ANZVI0803005430) & Western Port Biogenic Reefs; Port Phillip Bay Habitat Map 2021 (ANZVI0803009278); Saltmarsh and Mangrove Habitats; DELWP 2021 Statewide Marine Habitat Map 2021 (ANZVI0803009286) and relevant citations: Ball (1999), Ball et al. (2010). Ball & Blake (2007a), Ball & Blake (2007b), Blake and Ball (2001), Blake et al. (2013), Boon et al. (2011), Cohen et al (2000), Deakin Marine Mapping (Zavalas, R et al. 2018), DELWP (1994), Edmunds &Flynn (2015), Fathom Pacific (2020), Ford et al (2016), GeoHab Victoria Estuaries Geomorphology (2010), Ierodiaconou 2007, Ierodiaconou et al. 2018, Mazor et al. (2021), Monk et al. (2011), Poore (1992), Roob and Ball (1997), Victoria Department of Transport (1999), Young et al. 2022, Zavalas, R et al. 2018. Applications: The Statewide Marine Habitat Map 2023 provides broad habitat complexes across the state and provides greater knowledge of the ecological diversity across Victoria¿s waters. The map should be used at broad scales of >25 m, and where information of larger habitat complexes is needed. This work can support the management of large-scale habitats, their condition, marine spatial planning, strategic management prospect (SMP), FeAST risk assessments, and other broad scale applications to support management decisions across Victoria. The habitat model and resulting map provides an updated broad-scale habitat map across Victoria¿s state waters and provides a baseline for future data to build upon. Full Methodology: Citation: Mazor, T., Watermeyer, K., Hobley, T., Grinter, V., Holden, R., MacDonald, K. and Ferns, L. (2023). Statewide Marine Habitat Map. Habitat Complex Modelling Method (CBiCS Level 3). The State of
 
Citation proposal Citation proposal
(2023)

Statewide Marine Habitat Map 2023

Department of Energy, Environment and Climate Action

https://metashare.maps.vic.gov.au/geonetwork/srv/eng/catalog.search#/metadata/2b7471bd-523a-5d66-b805-abc8ad650c50
 

Details

Contacts

Cited responsible party  

No information provided.

Cited responsible party  

No information provided.

  Point of contact

Department of Energy, Environment and Climate Action - Lawrance Ferns   (Manager Marine Biodiversity Policy & Programs)  
Level 2 / 8 Nicholson Street
East Melbourne
Vic
3002
Australia
 

Identifiers and Keywords

ANZLIC Id
ANZVI0803009744 
Victorian Spatial Data Library (VSDL) Schema
COASTS:VIC_MARINE_HABITAT_MAP_2023 
Jurisdiction
Victoria 
Topic category
  • Biota
  • Oceans
 

Resource Constraints

Use limitation
Publicly available under Creative Commons Lincence . Citation for use: Mazor, T., Watermeyer, K., Hobley, T., Grinter, V., Holden, R., MacDonald, K. and Ferns, L. (2023). Statewide Marine Habitat Map. Habitat Complex Modelling Method (CBiCS Level 3). The State of Victoria Department of Energy, Environment and Climate Action. 
Classification
Unclassified  
Creative Commons Attribution 4.0 (CC-BY)
  • License Text
 

Other Dataset Details

Date ( Revision )
2023-02-02
Date ( Publication )
2023-11-28T16:34:15
Status
Completed  
Purpose
The statewide marine habitat map provides broad habitat complexes across the state and provides greater knowledge of the ecological diversity across Victoria¿s waters. The map should be used at broad scales of >25 m, and where information of larger habitat complexes is needed. This work can support the management of large-scale habitats, their condition, marine spatial planning, strategic management prospect (SMP), FeAST risk assessments, and other broad scale applications to support management decisions across Victoria. The state habitat map addresses the Marine & Coastal Strategy 2022, building knowledge to improve the condition and ecological connectivity of habitats, and protecting Victoria¿s environment - Biodiversity 2037, improving our knowledge of habitats and their extent to support their protection and restoration. 
Supplemental Information
Related Documents: None 
Maintenance and update frequency
As needed  
Maintenance date ( Publication )
2023-02-01T01:09:51
 

Spatial

Spatial representation type
Vector  
Description
General - Victoria 
Reference system identifier
4283

N
S
E
W


 

Temporal

Begin date
2023-01-23 
End date
2023-01-23 
 

Quality

Conceptual Consistency
Not applicable 
Missing Data
Victoria's marine environment and coastal habitats. Some small data gaps as a relict of the modelling process and availability of environmental predictor data. Completeness Verification: Habitat distribution model prediction using random forest machine learning tools from 32,998 ground-truthed habitat records and other digitised compiled datasets. 
Excess Data
Classified to Level 3 Habitat Complexes within the Combined Biotope Classification Scheme (CBICs) 
Attribute Quality
Modelled estimatation of habitat disribution using best available data up to 2021 see report. 
Positional Accuracy
Modelled to coordinate system: VICGRID94 Due to modelling and digitisation uncertainties the maps should be used at broad scales of over 25m for decision making. Scale range on CoastKit available at 1:100.000 
 

Lineage

Statement
Dataset Source: PPB Habitat model 2021 provides an updated broad-scale habitat map across Port Phillip Bay, which has applied new machine learning techniques Previous mapping of Port Phillip Bay has provided insight into habitats across the region, with the latest map produced in 2016 (Edmunds & Flynn 2018). Since then, additional benthic survey data and data on environmental predictors has developed which increases the capacity to improve model habitat distributions and extent. The Open Coast statewide marine habitat map (excluding PPB) developed by Deakin Marine Mapping lab using a range of techniques including digitisation of polygons and has been compiled using a compilatiom of various datasets including Boon et al. (2011). Deakin Marine Mapping (Young M et al, 2018). GeoHab Victoria Estuaries Geomorphology (2010). Deakin Marine Mapping (Zavalas, R et al. 2018), DELWP wetlands (1994), Monk et al 2011, Roob and Ball (1997), Ford et al 2016, Edmunds and Flynn (2015), Blake and Ball (2001), Poore (1992), Cohen et al (2000). The map has later been reclassified to CBICS habitat classification scheme at broad-scale level 2 and 3. Dataset Originality: Primary & Derived 
 

Attributes

Column Name Obligation Unique Data Type Data Length Data Precision Data Scale Reference Table Owner Reference Table Name Reference Table Code Column Name Short Column Name Definition
SITE_POS_SOURCE O N VARCHAR2 255 SITPOSSRC
HAB3_BIOTIC_ID O N VARCHAR2 100 HAB3BIOID
HAB3_BIOTIC_LABEL O N VARCHAR2 255 HAB3BIOLBL
LOC_NAME O N VARCHAR2 255 LOC_NAME
SAMPLE_REF O N VARCHAR2 255 SAMPLE_REF
GEOM_SRID O N NUMBER 22 0 GEOM_SRID
HAB3_BIOTIC_CODE O N VARCHAR2 255 HAB3BIOCDE
HAB3_BIOTIC_TITLE O N VARCHAR2 255 HAB3BIOTTL
INSTRUMENT_TYPE O N VARCHAR2 255 INSTRM_TYP
OBJ_TYPE O N VARCHAR2 255 OBJ_TYPE
BIOTIC_ID O N VARCHAR2 100 BIOTIC_ID
SITE_TYPE O N VARCHAR2 255 SITE_TYPE
PERSON_SUP O N VARCHAR2 255 PERSON_SUP
ORGANISATION O N VARCHAR2 255 ORG
PERSON_OBS O N VARCHAR2 255 PERSON_OBS
OBJ_DIR O N VARCHAR2 255 OBJ_DIR
TIME_OFFSET O N NUMBER 22 38 8 TIME_OFFST
SE_ANNO_CAD_DATA O N BLOB 4000 SEANNOCAD
BIOTIC_CODE O N VARCHAR2 255 BIOTC_CDE
OBJ_DATA_TYPE O N VARCHAR2 255 OBJDATTYP
BIOTIC_TITLE O N VARCHAR2 255 BIOT_TTL
SITE_POS_TYPE O N VARCHAR2 255 SIT_POSTYP
CREATED O N DATE 7 CREATED
EVENT_NAME O N VARCHAR2 255 EVENT_NAME
METHOD O N VARCHAR2 255 METHOD
PROJ_LABEL O N VARCHAR2 255 PROJ_LABEL
ACCESS_ O N VARCHAR2 255 ACCESS_
DISTANCE_XYZ O N NUMBER 22 38 8 DIST_XYZ
IMAGE_REF O N VARCHAR2 255 IMAGE_REF
PROJ_NAME O N VARCHAR2 255 PROJ_NAME
BIOTIC_LEVEL O N NUMBER 22 0 BIOT_LVL
IMG_TIME O N VARCHAR2 255 IMG_TIME
MODIFIED O N DATE 7 MODIFIED
INSTRUMENT_NAME O N VARCHAR2 255 INSTRM_NM
PROJ_CODE O N VARCHAR2 255 PROJ_CODE
IS_PROTECTED O N NUMBER 22 5 0 IS_PROTECT
COMMENT_ O N VARCHAR2 1000 COMMENT_
BIOTIC_LABEL O N VARCHAR2 255 BIOT_LBL
ID O N VARCHAR2 100 ID
 

About the Metadata Record

Metadata identifier
urn:uuid / 2b7471bd-523a-5d66-b805-abc8ad650c50

  Processor

DEECA - Skender, Emil  

Contact  

No information provided.
Resource Type
Dataset  
Date info ( Creation )
Date info ( Revision )
2025-05-09T13:16:16
Standard Name
ISO 19115-3:2018 
Profile Name
DELWP Profile 
Profile Version
Version 1 
Profile Date
2019-05-24  
 

Metadata Constraints

Classification
Unclassified  
 
 

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