How depth below the surface influences groundwater biotic assemblages.

This research aimed to observe how depth below ground influences biotic assemblages within alluvial aquifers.See metadata (first tab of the data set) and Methods - Read Me.txt file for more information.~40 samples were collected on two separate occasions (6 months apart) from three alluvial aquifers (the Macquarie, Namoi and Hunter River catchments).Groundwater was pumped from wells and samples collected included water chemistry, eDNA (16S for prokaryotes, 18S for eukaryotes) and physical collection of stygofauna.

本研究旨在探究地下埋深对冲积含水层（alluvial aquifers）内生物群落组成（biotic assemblages）的影响。更多详细信息请参阅数据集元数据（数据集首个标签页）及Methods - Read Me.txt文件。研究分两次采样，间隔6个月，从麦夸里河、纳莫伊河与亨特河流域的三处冲积含水层中采集了约40份样本。本次采样通过井泵抽取地下水，采集的样本涵盖水化学指标、环境DNA（environmental DNA, eDNA，原核生物采用16S rRNA基因测序，真核生物采用18S rRNA基因测序）以及地下栖水动物（stygofauna）的实物标本。