Soil Lake Inundation Moat Experiment (SLIME): Physical, chemical, and biological measurements from planktonic water columns, McMurdo Dry Valleys, Antarctica (2018-2020)

The Soil Lake Inundation Moat Experiment (SLIME) was developed by the McMurdo Dry Valleys Long Term Ecological Research (MCM LTER) project to investigate the ecological function of lake moats in Antarctica. These moats form during the austral summer when the margins of permanently ice-covered, closed-basin lakes melt, creating open-water zones, or ‘moats,’ between the shoreline and the thick (3-5 m) perennial ice cover. To study these habitats, sampling transects were established on the north and south shores of Lake Fryxell and the East Lobe of Lake Bonney. This data package includes three seasons of physical, chemical, and biological measurements from the planktonic water columns of these lakes, collected from SLIME transects between January 2018 and January 2020. Parameters include water temperature, conductivity, ion and nutrient concentrations, chlorophyll-a concentrations, as well as fluorescence and photochemical efficiencies for major algal classes. NCBI accession numbers are also provided for the microbial sequence data associated with each sample.

土壤湖泊淹没壕沟实验（Soil Lake Inundation Moat Experiment，SLIME）由麦克默多干谷长期生态研究（McMurdo Dry Valleys Long Term Ecological Research，MCM LTER）项目开发，旨在探究南极湖泊壕沟的生态功能。这类壕沟形成于南半球夏季，彼时常年被冰覆盖的封闭湖盆湖泊的岸缘发生消融，在湖岸与厚3至5米的常年冰盖之间形成开阔水域带，即"壕沟"。为研究这类生境，研究人员在弗莱克塞尔湖（Lake Fryxell）南北两岸以及邦尼湖东湾（East Lobe of Lake Bonney）布设了采样断面。本数据包涵盖2018年1月至2020年1月期间，通过SLIME采样断面采集的三座湖泊浮游水柱的三期物理、化学及生物学测量数据。测量参数包括水温、电导率、离子与营养盐浓度、叶绿素a浓度，以及主要藻类类群的荧光效率与光化学效率。本数据包还为每份样本关联的微生物序列数据提供了NCBI（National Center for Biotechnology Information）登录号。