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Department of Environment, Land, Water and Planning (DELWP), Victorian Government

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    Combined Port Phillip Bay habitat model developed by DELWP 2021 and Open Coast Deakin marine mapping campaign JAN 2019. The PPB map was built to predict habitat distributions by applying Random Forest machine learning tools which integrate ground truthed data and environmental predictors. The resulting Habitat Complex map represents 19 different habitat complexes across Port Phillip Bay at Level 3 Combined Biotope Classification Scheme (CBiCS) described by Edmunds and Flynn (2015, 2018; 2021). A total of 8,325 ground-truth records were used within the model (of the 9,683 records) that met the Random Forest modelling criteria (¿5 unique values for each biotope category; Breiman 2001). Environmental parameters were sourced from different methods including lidar, multibeam, and indexes calculated from the Digital Elevation Model (DEM), and mapped at a resolution of 2.5 metres. The Random forest model produced an accuracy (Out-of-bag) of 91%. Link to methodology: https://www.marineandcoasts.vic.gov.au/__data/assets/pdf_file/0031/537169/Mazor-et-al-2021_Port-Phillip-Bay-CBiCS-Habitat-Model.pdf 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.

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    The Victorian Benthic Habitats - Port Phillip Bay (CBICS) is a synthesis of all existing benthic habitat characterisations of the embayment which have been reclassified to conform to the Combined Biotope Classification Scheme (CBiCS). Base information for the synthesised dataset were sourced from data provided by: Marine and Freshwater Resources Institute, Queenscliff, Victoria Institute for Sustainability and Innovation, Victoria University, Melbourne. Parks Victoria, Victorian Government Deakin University, Victoria Department of Environment, Land, Water and Planning, Victorian Government

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    The Victorian Benthic Habitats - Western Port Bay (CBICS) is a synthesis of all existing benthic habitat characterisations of the embayment which have been reclassified to conform to the Combined Biotope Classification Scheme (CBiCS). Base layers for the synthesised dataset were sourced from data provided by: Marine and Freshwater Resources Institute, Queenscliff, Victoria Institute for Sustainability and Innovation, Victoria University, Melbourne. Parks Victoria, Victorian Government Deakin University, Victoria Department of Environment, Land, Water and Planning, Victorian Government

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    The Victorian Benthic Habitats - Gippsland Lakes (CBICS) is a synthesis of all existing benthic habitat characterisations of the Gippsland Lakes Region which have been reclassified to conform to the Combined Biotope Classification Scheme (CBiCS). The study area for this layer is defined as Jack Smith Lake in the west to Mallacoota in the east.