摘要
为建立简单易行的河蚬干重换算方法,对大通湖河蚬的3个形态参数（壳长、壳宽、壳高）和带壳干、湿重与去壳干重和无灰干重的关系进行了研究。结果显示：河蚬的去壳干重或无灰干重与3个形态参数的回归关系可用y=axb表示,其中,壳宽对无灰干重的预测值与实测值间百分误差率较低（PE=24.6%）,而壳宽对去壳干重及壳长和壳高对干重的PE范围为29.7%～40.5%;带壳湿重对去壳干重和无灰干重的换算效果均好于其他参数（PE分别为22.8%和21.7%）。综合分析,大通湖河蚬干重可首选带壳湿重通过方程y=ax直接换算获得。
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 was low （24.6%）. PE between observed and predicted value of tissue dry weight obtained from shell width and from shell length and shell height were varied from 29.7% to 40.5%. Tissue dry weight and ash free dry weight converted from wet weight with shell were more precise （the percentage error being 22.8% and 21.7%, respectively） than the other parameters. In conclusion, wet weight with shell could be directly converted to dry weight for Corbiculafuminea in Datong Lake usingy = ax.
出处
《湖南农业大学学报（自然科学版）》
CAS
CSCD
北大核心
2014年第6期633-636,共4页
Journal of Hunan Agricultural University(Natural Sciences)
基金
国家公益性行业(农业)科研专项(201303056–7)
国家自然科学基金项目(31100282)
关键词
河蚬
形态参数
带壳干重
带壳湿重
去壳干重
无灰干重
大通湖
Corbicula fluminea
shell dimension parameters
dry weight with shell
wet weight with shell
tissue dryweight
ash free dry weight
Datong Lake
