KFTI data

This study quantifying the sensitivity and tolerance of fish species to stressor gradients in the Karun River basin (Western Iran) and to used this information to develop a fish-based tolerance index, the Karun Fish Tolerance Index (KFTI), that can serve as a practical management tool. We also tested if native, endemic, and nonnative fish species differ in tolerance to the range of stressors that occur in the Karun River system. The KFTI complements a multimetric index (KFMMI) based on the same data developed in a companion study. The two complementary fish-based indices developed based on this dataset, that is, KFTI (this study) and KFMMI (Zare Shahraki et al., 2022b) are now available for use by stakeholders, managers, and scientists to evaluate the quality of freshwater ecosystems in Iran and elsewhere.

本研究量化了伊朗西部卡伦河流域鱼类物种对胁迫因子梯度的敏感性与耐受能力，并基于此开发了鱼类耐受指数——卡伦鱼类耐受指数（Karun Fish Tolerance Index, KFTI），该指数可作为实用的流域管理工具。本研究同时检验了本土、特有及外来鱼类物种对卡伦河水系中各类胁迫因子的耐受能力是否存在差异。该卡伦鱼类耐受指数与一项配套研究中基于相同数据构建的多指标指数（Karun Fish Multimetric Index, KFMMI）形成互补。依托本数据集开发的两项互补鱼类类指数，即本研究构建的卡伦鱼类耐受指数（KFTI）与配套研究提出的卡伦鱼类多指标指数（KFMMI, Zare Shahraki等, 2022b），现已可供利益相关方、管理者及科研人员用于评估伊朗及全球其他地区的淡水生态系统质量。