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2021 State of the Environment Report Marine Chapter – Expert Assessment – State and Trend – Shallow rocky reefs (<30m)

Created 21/12/2025

Updated 21/12/2025

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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 shallow rocky reefs (<30m)". 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 - Shallow rocky reefs (<30m)"

DESCRIPTION OF HABITAT/COMMUNITY/PROCESS FOR EXPERT ASSESSMENT Assemblages of plants and animals found on inshore shallow rocky reefs <30 m depth in the temperate zone. The primary focus here is on habitats and mobile invertebrates while fishes are covered in other assessments.

DATA STREAM(S) USED IN EXPERT ASSESSMENT Underwater visual census data from, Australian Temperate Reef Collaboration (ATRC; https://atrc.org.au/), Parks Victoria subtidal monitoring program and the Reef Life Survey program (RLS; https://reeflifesurvey.com/). Data collected between the years 2008-2020 (inclusive) were reported in the Australia’s changing reefs case study, with data from Jurien Bay, Rottnest Island (WA), Encounter (SA), Port Phillip, Beware Reef and (Vic), Kent Group, SE Tasmania, Maria Island (Tas), Batemans Bay, Jervis Bay, Sydney, and Port Stephens (NSW) the key locations with time series data.

2021 SOE ASSESSMENT SUMMARY [see attached Expert Assessment for full details]

• 2021 • Assessment grade: Poor Assessment trend: Deteriorating Confidence grade: Somewhat adequate Confidence trend: Somewhat adequate Comparability: High. This is the second assessment in a row based on standardised quantitative data from the same sources. • 2016 • Assessment grade: Poor Assessment trend: Deteriorating Confidence grade: Limited evidence or limited consensus Confidence trend: Limited evidence or limited consensus Comparability: Grade and trend are not comparable to the 2011 assessment • 2011 • Assessment grade: Good Assessment trend: Stable Confidence grade: Adequate high quality evidence and high level of consensus Confidence trend: Limited evidence or limited consensus

CHANGES SINCE 2016 SOE ASSESSMENT not supplied

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Additional Info

Field Value
Title 2021 State of the Environment Report Marine Chapter – Expert Assessment – State and Trend – Shallow rocky reefs (<30m)
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/18d52d7f-912e-4e0c-a7b2-276840dcb734
Contact Point
Australian Ocean Data Network
info@aodn.org.au
Reference Period 27/03/2021
Geospatial Coverage
Map data © OpenStreetMap contributors
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  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "2021 State of the Environment Report Marine Chapter – Expert Assessment – State and Trend – Shallow rocky reefs (<30m)". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/2021-state-of-the-environment-report-marine-chapter-expert-assessment-state-and-trend-shallow-r