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，内含一份数据工作表与一份数据相关说明工作表。本数据集为antFOCE实验期间，从安置于实验舱或开放式样区的人工基质单元（塑料锅刷）中采集的各类生物的总个体数（数据字段：个体数量）。分析方法详见说明工作表。

背景信息：2014/2015年南极夏季，antFOCE实验系统部署于东南极凯西站以南约5公里的奥布莱恩湾（O’Brien Bay）。依托海表及海冰下水下基础设施，研究人员可对放置于海底自然底栖生物群落上方的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。本研究同时对2个无pH调控的对照实验舱与2个开放式样区（无实验舱、无pH调控）开展采样，用于与pH调控（酸化）的处理组实验舱进行对比。

有关antFOCE实验的详细内容，请参阅报告"antFOCE 2014/15 – Experimental System, Deployment, Sampling and Analysis"。该报告以及展示各antFOCE数据集相互关联关系的示意图可通过以下链接获取：https://data.aad.gov.au/metadata/records/AAS_4127_antFOCE_Project4127