Fish collections at Coweeta LTER 100 m stream sites from 1991 to 1998

We monitored fish populations at three sites in a southern Appalachian stream system during a 40-month study. Electro-fishing was performed biannually in spring (May) and late summer(Aug-Oct), to assess stream fish populations, production and recruitment in the LTER 100m sites: Coweeta Creek, Lower Ball Creek, and Upper Ball Creek. These data will be used with habitat availability estimates recorded during the same time periods to see if fish assemblages structure and production of species differ along the gradient in concordance with changing abundance of patch types.本研究在为期40个月的周期内，对阿巴拉契亚南部溪流系统中的3个监测点位开展鱼类种群监测工作。研究于每年春季（5月）与夏末（8-10月）每年开展两次电捕鱼（electro-fishing）采样，以评估长期生态研究（Long-Term Ecological Research, LTER）100米标准监测点位——科韦塔溪（Coweeta Creek）、下鲍尔溪（Lower Ball Creek）与上鲍尔溪（Upper Ball Creek）的溪流鱼类种群、生物生产量及种群补充量。本数据集将与同期记录的生境可利用性评估数据结合使用，以探究鱼类群落结构与物种生产量是否沿环境梯度发生变化，并与生境斑块类型的丰度变化保持一致。