---CHANGE NOTES: Seamap Australia National Benthic Habitat Layer---- This document lists all changes made, including corrections and inclusion/removal of datasets, to the Seamap Australia NBHL. *VERSION UPDATE* Seamap NBHL 2024 --> Seamap NBHL 2025 ---NEW DATASETS--- TITLE: NAT Australian Tropical Reef Features (2025) CLASSIFIES: Biota and Substrata ACTION: Superseeds 'Complete GBR Island and Reef feature boundaries including Torres Strait Version 1b 2015', 'QLD Reefs & Shoals 2025' & 'Coastal Waterways Geomorphic Habitat Mapping'. IMPACT: Increased coverage; improved accuracy, currency and resolution of existing NBHL coverage. TITLE: NT mapping of green turtle foraging habitat (2024) CLASSIFIES: Biota and Substrata ACTION: Superseeds all existing data. IMPACT: Increased coverage; improved accuracy, currency and resolution of existing NBHL coverage. TITLE: TAS Mapping of temperate subtidal seagrass in tayaritja (Furneaux group), Tasmania (2024) CLASSIFIES: Biota and Substrata ACTION: Superseeds all existing data. IMPACT: Increased coverage; improved accuracy, currency and resolution of existing NBHL coverage. TITLE: NT subtidal seagrass meadows of Yanyuwa Sea Country, Barni-Wardimantha Awara IPA (2023) CLASSIFIES: Biota only ACTION: Superseeds all existing data (biota only). IMPACT: Increased coverage; improved accuracy, currency and resolution of existing NBHL coverage. TITLE: Remote sensing surface canopy mapping of Giant Kelp forests in Southern Australia (2023) CLASSIFIES: Biota and Substrata ACTION: Superseeds all data except 'NSW Estuarine Macrophytes 2022', 'VIC Statewide marine habitats 2023', 'Aerial surveys of giant kelp (Macrocystis pyrifera) from Musselroe Bay to Southeast Cape, Tasmania 2019' & 'Mapping of subtidal temperate seagrass beds in Tayaritja (Furneaux group) 2024' IMPACT: Increased coverage; improved accuracy, currency and resolution of existing NBHL coverage. TITLE: Franklin and Zeehan Marine Park fine-scale seafloor substrate mapping (2022) CLASSIFIES: Substrata only ACTION: New data (no overlaps to resolve). IMPACT: Increased coverage of existing NBHL extent. TITLE: Nearshore marine habitat mapping of the Norfolk Marine Park (2022) CLASSIFIES: Biota and Substrata ACTION: Supersedes all existing data. IMPACT: Increased coverage; improved accuracy, currency and resolution of existing NBHL coverage. TITLE: Norfolk Island Nearshore and Coastal Habitat Mapping (2022) CLASSIFIES: Substrata only ACTION: Supersedes all data except 'Nearshore marine habitat mapping of the Norfolk Marine Park 2022'. IMPACT: Increased coverage; improved accuracy, currency and resolution of existing NBHL coverage. TITLE: NSW seabed landforms derived from marine lidar data (2022) CLASSIFIES: Substrata only ACTION: Superseeds 'NSW Coastal Nearshore Reef Extent 2017' & 'NSW Seabed Habitat State Waters 2013' (substrata only). IMPACT: Increased coverage; improved accuracy, currency and resolution of existing NBHL coverage. TITLE: Satellite-derived seafloor habitat classification of Cocos (Keeling) Islands Marine Park, Indian Ocean Territories (2022) CLASSIFIES: Biota and Substrata ACTION: New data (no overlaps to resolve). IMPACT: Increased coverage of existing NBHL extent. TITLE: Satellite-derived seafloor habitat classification of Christmas Island Marine Park, Indian Ocean Territories (2022) CLASSIFIES: Biota and Substrata ACTION: New data (no overlaps to resolve). IMPACT: Increased coverage of existing NBHL extent. TITLE: Kimberley ReefKIM reef mapping - reef extent, WA (2013) CLASSIFIES: Substrata only ACTION: Provides substrate classification for existing biotic classifications where no substrate was previously classified. Provides additional polygons of substrate classification where no data is present. IMPACT: Increased coverage of existing NBHL extent. ---AMENDMENTS---- AMENDMENTS: General topological cleanup of data in Moreton Bay (QLD) region. TITLE: QLD Reefs and Shoals 2025 AMENDMENTS: Updates previous QLD Reefs and Shoals dataset (2024) TITLE: NSW Seabed Habitat State Waters 2013 AMENDMENTS: 'Hard Substrata' (Level 1 classification) changed to 'Consolidated Hard Substrata' (Level 2 classification) following consultation with data custodians. TITLE: HABMAP subtidal marine habitats, NSW (2016) AMENDMENTS: 'Hard Substrata' (Level 1 classification) changed to 'Consolidated Hard Substrata' (Level 2 classification) following consultation with data custodians. *VERSION UPDATE* Seamap NBHL 2023 --> Seamap NBHL 2024 ---NEW DATASETS--- TITLE: Coral Sea oceanic vegetation, QLD (2024) CLASSIFIES: Biota and Substrata ACTION: New data (no overlaps to resolve). IMPACT: Increased coverage of existing NBHL extent. TITLE: Solitary Islands Marine Park landform and mapping, NSW (2023) CLASSIFIES: Substrata only ACTION: Superseeds all existing data (substrata only). IMPACT: Increased coverage; improved accuracy, currency and resolution of existing NBHL coverage. TITLE: Hardy Inlet seagrass mapping 2018/19, 19/20, 22/23 (WA DWER) Leschenault Estuary seagrass mapping 2020/21-22/23 (WA DWER) Oyster Harbour seagrass mapping 2018/19, 20/21 (WA DWER) Princess Royal Harbour seagrass mapping 2020/21 (WA DWER) Wilson Inlet seagrass mapping 2020/21-22/23 (WA DWER) CLASSIFIES: Biota (seagrass) only ACTION: Superseeds all existing data (biota only). IMPACT: Increased coverage; improved accuracy, currency and resolution of existing NBHL coverage. TITLE: Benthic habitats of Marra Sea Country, Gulf of Carpentaria, NT (2021) CLASSIFIES: Biota only ACTION: Replaces relevant section of 'Four Decades of Seagrass Spatial Data from Torres Strait and Gulf of Carpentaria' (synthesis product). IMPACT: Improved data provenance for existing NBHL coverage. TITLE: Dungeness Reef Seagrass Survey, Torres Strait, QLD (2021) CLASSIFIES: Biota only ACTION: Replaces relevant section of 'Four Decades of Seagrass Spatial Data from Torres Strait and Gulf of Carpentaria' (synthesis product). IMPACT: Improved data provenance for existing NBHL coverage. TITLE: Western Torres Strait Seagrass Survey, Torres Strait, QLD (2020) CLASSIFIES: Biota only ACTION: Replaces relevant section of 'Four Decades of Seagrass Spatial Data from Torres Strait and Gulf of Carpentaria' (synthesis product). IMPACT: Improved data provenance for existing NBHL coverage. TITLE: Great Sandy Marine Park benthic habitat, QLD (2019) CLASSIFIES: Biota and Substrata ACTION: Superseeds all existing data EXCEPT 'Wolf Rock benthic habitat 2003', except in cases where Biotic or Substrata classification is Unknown and exising NBHL has a classification for this component. IMPACT: Increased coverage; improved accuracy, currency and resolution of existing NBHL coverage. TITLE: Lord Howe Island & Balls Pyramid geomorphic mapping, NSW (2018) CLASSIFIES: Substrata only ACTION: Replaces 'Reefs on the Australian Continental Shelf (NESP MBH D3) - lordhoweshelfreefs 2018' (synthesis reef/non-reef product). IMPACT: Increased coverage; improved accuracy, currency and resolution of existing NBHL coverage. TITLE: Fish habitats of the Recherche Archipelago, WA (2001) CLASSIFIES: Biota and Substrata ACTION: Superseeds all overlapping existing data. IMPACT: Improved accuracy, currency and resolution of existing NBHL coverage. TITLE: Jurien Bay benthic habitat mapping, WA (2017) CLASSIFIES: Biota and Substrata ACTION: Superseeds all overlapping existing data. IMPACT: Improved accuracy, currency and resolution of existing NBHL coverage. TITLE: Kimberley ReefKIM reef mapping - benthic habitat, WA (2013) CLASSIFIES: Biota and Substrata ACTION: ONLY superseeds existing overlapped data where biotic classification (Data_BC) = 'Distribution And Predictors Of Benthic Biodiversity, WA (2018)' OR Data_BC = 'Coastal Waterways Geomorphic Habitat Mapping (2005)'. IMPACT: Increased coverage; improved accuracy, currency and resolution of existing NBHL coverage (where coarser datasets existed). ---AMENDMENTS---- TITLE: Shellharbour seabed landforms, NSW (2022) & Wollongong seabed landforms, NSW (2022) AMENDMENTS: 'Soft Substrata' (Level 1 classification) changed to 'Mixed Soft Substrata' (Level 2 classification) following consultation with data custodians. TITLE: HABMAP subtidal marine habitats, NSW (2016) AMENDMENTS: 'Hard Substrata' (Level 1 classification) changed to 'Consolidated Hard Substrata' (Level 2 classification) following consultation with data custodians. TITLE: WA Seagrass synthesis (2013) AMENDMENTS: Older data for sites with more recent resurveying has been removed (Leschenault Estuary, Hardy Inlet, Wilson Harbour, Oyster Harbour, Princess Royal Harbour) Only the three most recent years of data has been retained for these sites. Data collected prior to summer 2014/15 has been removed.