Data from two Antarctic krill (Euphausia superba) 24-hour feeding experiments under ambient temperature and pCO2, ambient temperature and elevated pCO2, and elevated temperature and pCO2.

<p>Data from two Antarctic krill (<em>Euphausia superba</em>) 24-hour feeding experiments under ambient temperature and pCO2, ambient temperature and elevated pCO2, and elevated temperature and pCO2.</p>

<p>We conducted perturbation experiments to determine potential changes in feeding rates of Euphausia superba (32-41 mm) due to decreased pH and elevated temperature. Target pH was reached in the experiments via CO2 bubbling of seawater flowing through gas equilibration columns. The two feeding experiments differed in acclimation time.&nbsp; Krill in experiment 1 (Exp 1) and experiment 2 (Exp 2) were acclimated to treatment conditions for 48 hours and 21 days, respectively.</p>

本数据集涵盖两项南极磷虾（*Euphausia superba*）的24小时摄食实验数据，实验设置了三类环境处理条件：环境温度与环境二氧化碳分压（pCO₂）、环境温度与升高的二氧化碳分压（pCO₂），以及升高温度与二氧化碳分压（pCO₂）。

本研究开展环境扰动实验，以探究pH降低与温度升高对体长32~41 mm的南极磷虾摄食率的潜在影响。实验通过向流经气体平衡柱的海水通入CO₂，将体系pH调节至预设目标值。两项摄食实验的驯化时长存在差异：实验1（Exp 1）与实验2（Exp 2）中的磷虾分别在处理条件下驯化48小时与21天。