Ice core meiofauna during the SIPEX and SIPEX II voyages

Zooplankton were collected during the winter-spring transition during two cruises of the Aurora Australis: SIPEX in 2007 and SIPEX II in 2012. As part of the collections sea ice cores were collected to describe the ice habitat during the period of zooplankton collections. Ice cores were taken with a 20 cm diameter SIPRE corer and sectioned in the field with an ice core. Temperature was measured in the section using a spike thermometer and slivers of each section were melted without filtered water to record salinity. The remainders of each section were melted at 4oC in filtered seawater and the melted water was used to measure chlorophyll a concentration, and meiofauna species and abundance. Meiofauna were counted and identified using a Leica M12 microscope: to species in most cases and down to stage during 2012.
Quality: No problems encountered with data collection.

Australian Antarctic Data Centre note - 2018-07-03:

The original datasheet was reformatted to fit IPT Biodiversity.AQ standard. The new datasheet \"IceCoreMeiofaunaSIPEX_I_II.csv\" provides the dataset ID, event Id (Cruiser), sampling protocol, verbatim depth, event remarks, event date, verbatim latitude and longitude that were converted to decimal latitude and longitude (also provided), continent, country, occurrence, basis of record, life stage, and organism count. The taxonomical organisation is provided to the lowest taxonomical rank that could be determined, after matched in WoRMS (World Register of Marine Species).

Some corroborating information from this dataset have been included - https://data.aad.gov.au/metadata/records/AAS_4140_Environmentaldata

本数据集的浮游动物样本采集于两次“南极光号（Aurora Australis）”科考航次的冬春过渡时段，分别为2007年的SIPEX航次与2012年的SIPEX II航次。作为采样工作的配套内容，同步采集了海冰岩芯以表征浮游动物采样期间的海冰生境。海冰岩芯通过直径20 cm的SIPRE取样器获取，并在野外完成分段切割。对每一段岩芯，使用尖头温度计测定其温度；截取每段岩芯的细屑，无需添加过滤水即可直接融化以测定盐度。将每段岩芯的剩余部分置于4℃的过滤海水中融化，所得融水用于测定叶绿素a浓度，以及小型底栖动物（meiofauna）的物种组成与丰度。

小型底栖动物的计数与分类鉴定采用徕卡M12（Leica M12）显微镜完成：多数类群可鉴定至物种水平，2012年航次的样本可进一步鉴定至发育阶段。

数据质量：本次数据采集过程未出现异常问题。

澳大利亚南极数据中心（Australian Antarctic Data Centre）备注（2018年7月3日）：
原始数据表已重新格式化以适配集成发布工具包（Integrated Publishing Toolkit, IPT）Biodiversity.AQ标准。新数据表《IceCoreMeiofaunaSIPEX_I_II.csv》包含数据集ID、事件ID（航次标识）、采样方案、原始深度、事件备注、事件日期、原始经纬度（已转换为十进制度格式并一并提供）、大洲、国家、物种出现记录、记录依据、发育阶段以及生物个体计数等字段。

所有分类单元均匹配至世界海洋物种登记册（World Register of Marine Species, WoRMS）数据库后，标注至可鉴定的最低分类阶元。

本数据集补充了部分佐证信息，来源链接：https://data.aad.gov.au/metadata/records/AAS_4140_Environmentaldata