Seasonal surveys of fish abundance and diversity in streams of central, eastern, and southern Arizona, USA (2016-2019)

Fish communities in desert streams are shaped by both the long-term selective pressures of streamflow regimes and the short-term effects of floods and droughts. Between spring 2016 and spring 2019 we conducted seasonal sampling of nine streams across the state of Arizona, USA on a gradient of flow regime variability. We calculated populations size for each species at all surveys to analyze seasonal and long-term variations in fish community composition. We additionally used the data to calculate annual rates of fish biomass production. This data set includes the raw catch data from three pass depletion electrofishing, population size estimates at each season, sampling locations, and the USGS stream gauges we used to obtain streamflow data.

荒漠溪流中的鱼类群落，同时受水文情势的长期选择压力与洪水、干旱的短期效应共同塑造。2016年春季至2019年春季期间，我们针对美国亚利桑那州境内9条沿水文情势变异性梯度分布的溪流开展了季节性采样调查。我们在所有采样调查中计算了各物种的种群规模，以分析鱼类群落组成的季节与长期变化特征。此外，我们利用该数据集计算了鱼类生物量生产的年速率。本数据集包含三趟耗尽式电捕鱼法采集的原始渔获数据、各季节的种群规模估算值、采样点位，以及我们用于获取水文数据的美国地质调查局（United States Geological Survey）水文测站数据。