Endurance swimming performance and physiology of juvenile Green Sturgeon (Acipenser medirostris) at different temperatures, CA, 2022

This dataset provides information on the endurance swimming performance and physiological responses of juvenile Green Sturgeon (Acipenser medirostris), reared and tested at the University of California, Davis, in 2022. Fish were acclimated to two temperature treatments (13°C and 18°C) for 14 days prior to swimming trials. Endurance tests were conducted at 47–53 days post-hatch (DPH) in modified swim tunnels at fixed water velocities (25–55 cm s⁻¹) to measure time-to-fatigue (End.min), station-holding behavior (Station_holding), and swimming type (Swim.type). Fish morphometrics (e.g., weight, fork length, total length) were recorded before trials.
Post-swim physiological analyses included whole-body measurements of cortisol, glucose, lactate, and protein. Tissue homogenates were processed to determine concentrations normalized to fish weight (e.g., Cortisol_ng_g, Glucose_ug_g, Lactate_ug_g). Standard curves showed high assay linearity (R² > 0.98) and low variability (CV < 10%). This dataset contributes to understanding sturgeon endurance and physiological stress under different environmental conditions, providing insights into their resilience to temperature and flow changes relevant to river management and conservation efforts.
Variables include: species, developmental stage (DPH), rearing and trial conditions (tank, temperature, velocity), fish morphometrics (weight, fork length, total length), and physiological metrics (cortisol, protein, glucose, and lactate).

本数据集收录了2022年于加州大学戴维斯分校（University of California, Davis）开展饲养与测试的幼年绿鲟（Green Sturgeon，学名Acipenser medirostris）的耐力游泳表现与生理响应相关数据。试验前，所有试验鱼均被置于13℃与18℃两个温度处理组中驯化14天。耐力测试于孵化后47~53天（DPH，Days Post-Hatch）开展，采用改良式游泳隧道，设置25~55 cm·s⁻¹的固定水流速度，用以测定试验鱼的疲劳时间（End.min）、驻留行为（Station_holding）与游泳类型（Swim.type）。测试开始前，研究人员记录了试验鱼的形态学指标，包括体重、叉长、全长等。游泳测试后的生理分析涵盖全鱼体的皮质醇、葡萄糖、乳酸与蛋白质含量测定。研究人员对组织匀浆进行处理，得到以鱼体重归一化的浓度数据（如Cortisol_ng_g、Glucose_ug_g、Lactate_ug_g）。标准曲线结果显示，本次检测具有极高的线性度（R²>0.98）与较低的变异度（CV<10%）。本数据集有助于解析不同环境条件下鲟鱼的耐力表现与生理应激状态，可为理解其对温度与水流变化的耐受能力提供科学依据，相关成果可应用于河流管理与物种保护工作。本数据集包含的变量包括：物种、发育阶段（DPH）、饲养与试验条件（养殖缸、温度、水流速度）、鱼类形态学指标（体重、叉长、全长）以及生理指标（皮质醇、蛋白质、葡萄糖与乳酸）。