In order to establish simple and practical conversion methods for dry weight of Corbiculafluminea in Lake Datong, the relations among the three shell dimension parameters (length, width and height), dry and wet weight with shell, tissue dry weight and ash free dry weight were investigated. The regressions of tissue dry weight and ash free dry weight with the three shell dimension parameters fitted the formula y = axb. Among them, the percentage error (PE) between observed and predicted value of ash free dry weight obtained from shell width ...