This study aimed to develop an ecological habitat suitability model (EHSM) for Zacco platypus by integrating hydraulic (HHS) and physiologic (PHS) habitat suitability. Study sites (117 stations) were selected throughout the five major watersheds in South Korea, where hydraulic, water temperature, and fish survey data (2008–2015) were available. The HHS was determined using preference curves for water depth and velocity, while the PHS was determined by growth and stress curves. The geometric mean of HHS and PHS was the most appropriate to calculate the ecological habitat suitability (EHS) when compared with fish abundance. The relation of EHS was lower with PHS (r = 0.750) than with HHS (r = 0.956), likely due to the thermal tolerance of Z. platypus. EHSM represented the effect of water temperature on fish growth and stress better than a conventional model, suggesting a promising tool to estimate the habitat suitability of freshwater fish.

这项研究旨在通过整合水力（HHS）和生理（PHS）栖息地适宜性，为Zacco platypus开发生态栖息地适宜性模型（EHSM）。在韩国的五个主要流域中选择了研究地点（117个站），那里有水力，水温和鱼类调查数据（2008-2015年）。使用水深和流速的偏好曲线确定HHS，而通过生长和应力曲线确定PHS。与鱼类丰度相比，HHS和PHS的几何平均值最适合计算生态栖息地适宜性（EHS）。EHS与PHS的关系（r  = 0.750）低于与HHS（r  = 0.956）的关系，这可能是由于HHS的耐热性鸭嘴兽。EHSM代表了水温对鱼类生长和压力的影响要比传统模型更好，这表明了一种有希望的工具来估算淡水鱼的栖息地适宜性。