2021 State of the Environment Report Marine Chapter – Expert Assessment – State and Trend – Oceanic reefs

《2021年环境状况报告》的海洋章节包含了从海洋数据流中开发的多个专家模板。该元数据记录描述了专家评估“海洋珊瑚礁的状况和趋势”。<br /> * 专家评估报告全文的PDF格式，包括图表（如有提供），可在本记录的“在线资源”部分下载，名称为“2021年专家评估-海洋珊瑚礁”*<br /> <br /> ----------------------------------------<br /> <br /> 生境/社区/专家评估程序说明<br /> 在0-30米深度范围内的浅海礁石上发现的植物和动物群落。这主要涉及珊瑚海、伊丽莎白和米德尔顿礁、豪勋爵岛、诺福克岛以及北部和西北部近海礁的珊瑚礁，其结果来自国家案例研究“澳大利亚不断变化的珊瑚礁”。<br /> <br /> 用于专家评估的数据流<br /> 参考文献中报告的珊瑚礁生命调查的水下目视普查数据。 NW和Elizabeth &amp; Middleton珊瑚礁于2013年和2018年调查，豪勋爵岛于2006年，2008年，2009年，2010年，2012年，2014年，2016年，2018年和2020年调查。珊瑚海2012年、2013年、2016年、2017年、2018年、2019年（2020年的数据尚未用于评估），诺福克岛（2009年、2013年）。<br /> 虽然结果是基于国家案例研究“澳大利亚不断变化的珊瑚礁”中所涵盖的区域，其中与标准化数据进行了定量比较，但澳大利亚海洋科学研究所，詹姆斯库克大学，CSIRO和悉尼海洋科学研究所收集了其他相关的监测数据。这里报告的趋势是否与其他监测方案所显示的趋势一致，尚不确定。<br /> <br /> ----------------------------------------<br /> <br /> 2021年国有企业评估摘要[详细信息请参见随附的专家评估]<br /> <br /> · 2021 ·<br /> 评价等级：良好<br /> 评估趋势：恶化<br /> 置信度：充分<br /> 信心趋势：充分/有限<br /> 可比性：高。这是连续第二次基于同一来源的标准化定量数据进行评估（注意2016年的评估标题为“离岸银行，浅滩，岛屿”）<br /> · 2016 ·<br /> 评价等级：良好<br /> 评估趋势：稳定<br /> 置信度：充分的高质量证据或高度共识<br /> 可信度趋势：证据有限或共识有限<br /> 可比性：等级和趋势与2011年评估有一定可比性<br /> · 2011 ·<br /> 评价等级：良好<br /> 评估趋势：稳定<br /> 置信度：证据有限或共识有限<br /> 可信度趋势：证据有限或共识有限<br /> <br /> ----------------------------------------<br /> <br /> 2016年以来的变化<br /> 未提供

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 oceanic reefs". <br /> ***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 - Oceanic reefs"***<br /> <br /> ----------------------------------------<br /> <br /> DESCRIPTION OF HABITAT/COMMUNITY/PROCESS FOR EXPERT ASSESSMENT<br /> Assemblages of plants and animals found on shallow offshore reefs in the 0-30 m depth range. This largely relates to reefs in the Coral Sea, Elizabeth and Middleton Reefs, Lord Howe Island, Norfolk Island, and the offshore reefs in the North and North-west, based on results from the national case study ‘Australia’s changing reefs’.<br /> <br /> DATA STREAM(S) USED IN EXPERT ASSESSMENT<br /> Underwater visual census data from Reef Life Survey, as reported in references. NW and Elizabeth & Middleton reefs surveyed in 2013 and 2018, Lord Howe Island 2006, 2008, 2009, 2010, 2012, 2014, 2016, 2018 and 2020. Coral Sea 2012, 2013, 2016, 2017, 2018, 2019 (2020 data not yet available for assessment), Norfolk Island (2009, 2013). <br /> While results were based on those regions covered in the national case study ‘Australia’s changing reefs’ in which quantitative comparisons were made with standardised data, other relevant monitoring data have been collected by the Australian Institute of Marine Science, James Cook University, CSIRO and the Sydney Institute of Marine Science. It is uncertain whether trends reported here are consistent with those indicated by those other monitoring programs.<br /> <br /> ----------------------------------------<br /> <br /> 2021 SOE ASSESSMENT SUMMARY [see attached Expert Assessment for full details]<br /> <br /> • 2021 •<br /> Assessment grade: Good<br /> Assessment trend: Deteriorating<br /> Confidence grade: Adequate<br /> Confidence trend: Adequate/limited<br /> Comparability: High. This is the second assessment in a row based on standardised quantitative data from the same sources (noting that 2016 assessment was titled “Offshore banks, shoals, islands”)<br /> • 2016 •<br /> Assessment grade: Good<br /> Assessment trend: Stable<br /> Confidence grade: Adequate high-quality evidence or high level of consensus<br /> Confidence trend: Limited evidence or limited consensus<br /> Comparability: Grade and trend are somewhat comparable to the 2011 assessment<br /> • 2011 •<br /> Assessment grade: Good<br /> Assessment trend: Stable<br /> Confidence grade: Limited evidence or limited consensus<br /> Confidence trend: Limited evidence or limited consensus<br /> <br /> ----------------------------------------<br /> <br /> CHANGES SINCE 2016 SOE ASSESSMENT<br /> not supplied