Data and code – Effects of climate on salmonid productivity: A global meta-analysis across freshwater ecosystems

Salmonids are of immense socio-economic importance in much of the world but are threatened by climate change. This has generated a substantial literature documenting effects of climate variation on salmonid productivity in freshwater ecosystems, but there has been no global quantitative synthesis across studies. We conducted a systematic review and meta-analysis to gain quantitative insight into key factors shaping the effects of climate on salmonid productivity, ultimately collecting 1,321 correlations from 156 studies, representing 23 species across 24 countries. Fisher’s Z was used as the standardized effect size, and a series of weighted mixed-effects models were compared to identify covariates that best explained variation in effects. Patterns in climate effects were complex, and were driven by spatial (latitude, elevation), temporal (time-period, age-class), and biological (range, habitat type, anadromy) variation within and among study populations. These trends were often consist...

鲑科鱼类（Salmonids）在全球多数地区均具备极高的社会经济价值，但正遭受气候变化的严重威胁。当前已有大量研究文献阐明了气候变异对淡水生态系统中鲑科鱼类种群生产力的影响，但尚未有针对全球范围内相关研究的定量化综合分析。本研究开展了系统综述与荟萃分析，以期定量解析调控气候对鲑科鱼类种群生产力影响的关键因素，最终从涵盖24个国家23个物种的156项研究中收集得到1321个相关系数。本研究采用费希尔Z转换（Fisher's Z）作为标准化效应量，并通过对比一系列加权混合效应模型，筛选出最能解释效应差异的协变量。气候影响的模式极为复杂，其差异由研究种群内部及种群间的空间（纬度、海拔）、时间（研究时段、年龄组）以及生物学（分布范围、栖息地类型、溯河洄游性）特征变异所驱动。此类趋势通常具有