Artificial Substrate Units from the antFOCE (Antarctic Free Ocean Carbon Enrichment) experiment at Casey Station

Refer to antFOCE report section 4.5.2 for deployment, sampling and analysis details.https://data.aad.gov.au/metadata/records/AAS_4127_antFOCE_Project4127The download file contains an Excel workbook with one data spreadsheet and one of notes relevant to the data. The data are the total number of each organism collected from artificial substrate units (plastic pot scourers) deployed in chambers or open plots during the antFOCE experiment (Data = Number of Individuals). Analysis methods are detailed in the Notes spreadsheet. Background The antFOCE experimental system was deployed in O’Brien Bay, approximately 5 kilometres south of Casey station, East Antarctica, in the austral summer of 2014/15. Surface and sub-surface (in water below the sea ice) infrastructure allowed controlled manipulation of seawater pH levels (reduced by 0.4 pH units below ambient) in 2 chambers placed on the sea floor over natural benthic communities. Two control chambers (no pH manipulation) and two open plots (no chambers, no pH manipulation) were also sampled to compare to the pH manipulated (acidified) treatment chambers. Details of the antFOCE experiment can be found in the report – “antFOCE 2014/15 – Experimental System, Deployment, Sampling and Analysis”. This report and a diagram indicating how the various antFOCE data sets relate to each other are available at:https://data.aad.gov.au/metadata/records/AAS_4127_antFOCE_Project4127

有关部署、采样与分析的详细信息，请参阅antFOCE报告第4.5.2节。相关链接：https://data.aad.gov.au/metadata/records/AAS_4127_antFOCE_Project4127
下载文件包含一个Excel工作簿，内含1份数据工作表与1份数据说明工作表。本次数据集为antFOCE实验期间，部署于实验舱或开放式样地中的人工基质单元（塑料锅刷）所采集的各类生物个体总数（数据单位：个体数量）。分析方法详见说明工作表。

背景：antFOCE实验系统于2014/2015年南极夏季部署于南极东部凯西站（Casey Station）以南约5公里的奥布莱恩湾（O’Brien Bay）。配套的地表与冰下（海冰下方水域）设施可对放置于自然底栖群落上方海床的2个实验舱内的海水pH值进行可控调控，将pH值较环境水平降低0.4个单位。同时设置2个对照实验舱（不进行pH调控）与2个开放式样地（无实验舱、不开展pH调控）作为采样对象，用于与经pH调控（酸化）的处理组实验舱进行对比。

antFOCE实验的详细细节可参阅报告《antFOCE 2014/15——实验系统、部署、采样与分析》。该报告以及展示各antFOCE数据集相互关联关系的示意图均可通过以下链接获取：https://data.aad.gov.au/metadata/records/AAS_4127_antFOCE_Project4127