Sea ice algae growth rate data collected during the SIPEX II voyage of the Aurora Australis, 2012

Chlorophyll data was used to measure growth rates of sea ice algae in CO2 incubations. Sea ice brine microalgae was collected from sackholes. Replicate samples were incubated in ambient air (~0.04% CO2), 0.1% CO2, 1.0% CO2 and 2.0% CO2 concentrations. Three incubation experiments were carried out at SIPEX stations 4 (expt 1) 7 (expt 3) and 8 (expt 4). Growth rate calcualtions followed a standard exponential growth model, i.eBf = Bi x e(rt)Where Bf equals final biomass, Bi equals initial biomass, r = growth rate and t = time (in days).

本研究通过叶绿素数据测定了二氧化碳培养实验中海冰藻类的生长速率。实验所用海冰盐水微藻采集自海冰囊孔。将平行重复样本分别置于环境空气（约0.04% CO₂）、0.1% CO₂、1.0% CO₂及2.0% CO₂浓度条件下进行培养。本研究共开展3组培养实验，分别在SIPEX第4站位（实验1）、第7站位（实验3）及第8站位（实验4）实施。生长速率的计算遵循标准指数生长模型，即：Bf = Bi × e^(rt)，其中Bf为最终生物量，Bi为初始生物量，r为生长速率，t为培养时长（单位：天）。