{"help": "https://data.gov.au/data/en/api/3/action/help_show?name=package_show", "success": true, "result": {"archived": false, "author_email": null, "contact_point": "info@aodn.org.au", "creator_user_id": "c2fbbe4a-4ba0-4945-808b-67454605a4cf", "duplicate_score": 2, "geospatial_topic": [], "id": "bea1171a-9fb7-4311-9a28-ecaedc287dd1", "isopen": false, "language": "eng", "license_id": "notspecified", "license_title": "notspecified", "maintainer": null, "maintainer_email": null, "metadata_created": "2025-12-20T20:42:43.623528", "metadata_modified": "2025-12-20T20:42:43.623535", "name": "2021-state-of-the-environment-report-marine-chapter-expert-assessment-state-and-trend-seamounts", "notes": "The Marine chapter of the 2021 State of the Environment (SoE) report incorporates multiple expert templates developed from streams of marine data. This metadata record describes the Expert Assessment \"State and Trend of seamounts\". \n<strong><em>A PDF of the full Expert Assessment, including figures and tables (where provided) is downloadable in the \"On-line Resources\" section of this record as \"EXPERT ASSESSMENT 2021 - Seamounts\"</em></strong>\n\n\n\nDESCRIPTION OF HABITAT/COMMUNITY/PROCESS FOR EXPERT ASSESSMENT\nAustralia\u2019s marine realm encompasses many seamounts (undersea mountains, often with volcanic origin); the best known are the Tasmanian seamounts and the Tasmantid seamount chain (Figure 1). Additional seamounts continue to be discovered and mapped \u2013 particularly in the Coral Sea.\nSeamounts provide \u2018oasis\u2019 habitats of hard substratum in the deep sea that often support elevated biomass and productivity \u2014 including dense aggregations of corals with high associated biodiversity (Clark et al. 2010; Rowden et al. 2010). These often contain vulnerable marine ecosystems (VME) (e.g. UNGA 2006; Clark et al. 2011; Williams et al. 2020a). An ecological definition for seamounts (Pitcher et al. 2007) is preferred to geological (elevation of &gt;1,000 m) because small seamounts frequently support high biodiversity.\nA rich variety of seamount benthic fauna in Australia\u2019s south-east and south-west regions is associated with biogenic habitats formed by live and dead stony coral, mostly Solenosmilia variabilis, to ~1500 m depth (Thresher et al. 2014; Williams et al. 2020a). Communities and habitats on deeper seamounts (&gt;1500 m) are usually less diverse and abundant, but see Thresher et al. (2014). Tasmantid Chain seamounts are mapped and used for commercial fishing (e.g. Williams et al. 2016), but their epifaunal communities remain poorly documented compared to Tasmania\u2019s seamounts (Williams et al. 2012).  \n\nDATA STREAM(S) USED IN EXPERT ASSESSMENT\nRV Southern Surveyor and RV Investigator survey data, held in CSIRO MarLIN.\n\n\n\n2021 SOE ASSESSMENT SUMMARY [see attached Expert Assessment for full details]\n\n\u2022 2021 \u2022\nAssessment grade: Very good-Poor\nAssessment trend: Stable- Improving\nConfidence grade: Adequate high quality evidence or high level of consensus\nConfidence trend: Adequate high quality evidence or high level of consensus\nComparability: Grade and trends are somewhat comparable to the 2016 assessment, but confidence is improved based on additional data collection\n\u2022 2016 \u2022\nAssessment grade: Very good-Poor\nAssessment trend: Stable- Improving\nConfidence grade: Adequate high quality evidence or high level of consensus\nConfidence trend: Adequate high quality evidence or high level of consensus\nComparability: Grade and trends are somewhat comparable to the 2011 assessment\n\u2022 2011 \u2022\nAssessment grade: Good\nAssessment trend: Stable\nConfidence grade: Limited evidence or limited consensus\nConfidence trend: Limited evidence or limited consensus\n\n\n\nCHANGES SINCE 2016 SOE ASSESSMENT\nnot supplied", "num_resources": 9, "num_tags": 4, "organization": {"id": "0143757a-86ab-43e4-bba6-4a3a2a02b6c4", "name": "australian-ocean-data-network", "title": "Australian Ocean Data Network", "type": "organization", "description": "Harvester for Australian Ocean Data Network", "image_url": "", "created": "2025-06-23T12:29:10.320926", "is_organization": true, "approval_status": "approved", "state": "active"}, "original_harvest_source": {"site_url": "https://catalogue.aodn.org.au", "href": "https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/2021-state-of-the-environment-report-marine-chapter-expert-assessment-state-and-trend-seamounts", "title": "Australian Oceans Data Network"}, "owner_org": "0143757a-86ab-43e4-bba6-4a3a2a02b6c4", "private": false, "promotion_level": "0", "spatial": "{\"type\": \"Polygon\", \"coordinates\": [[[102.65625000000001, -47.4609375], [162.421875, -47.4609375], [162.421875, -7.207031249999999], [102.65625000000001, -7.207031249999999], [102.65625000000001, -47.4609375]]]}", "spatial_coverage": "{\"type\": \"Polygon\", \"coordinates\": [[[102.65625000000001, -47.4609375], [162.421875, -47.4609375], [162.421875, -7.207031249999999], [102.65625000000001, -7.207031249999999], [102.65625000000001, -47.4609375]]]}", "state": "active", "temporal_coverage_from": "2021-09-13 13:39:06", "title": "2021 State of the Environment Report Marine Chapter \u2013 Expert Assessment \u2013 State and Trend \u2013 Seamounts", "type": "dataset", "unpublished": false, "url": null, "version": null, "extras": [{"key": "harvest_object_id", "value": "7b7b7c42-2477-4f66-8fe3-c3d67ea5e43c"}, {"key": "harvest_source_id", "value": "a2216e59-91ec-48b1-83cc-d35d9f09fcec"}, {"key": "harvest_source_title", "value": "Australian Oceans Data Network"}], "resources": [{"cache_last_updated": null, "cache_url": null, "created": "2025-12-20T20:42:43.625429", "datastore_active": false, "datastore_contains_all_records_of_source_file": false, "description": "EXPERT ASSESSMENT 2021 - 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