Densities of Hexagenia mayfly nymphs in western Lake Erie, 1999-2014

Densities of Hexagenia spp. mayfly nymphs by age class are presented from 1999 through 2014. This range is significant in that it includes the year of peak abundance...本数据集呈现了1999年至2014年六节蜉属（Hexagenia spp.）蜉蝣稚虫按年龄组（age class）划分的种群密度数据。该时间跨度具有重要意义，因其涵盖了该类群种群丰度达到峰值的年份……