臭鼩鼱肥满度变化的特征分析

Features analysis of relative fatness in Suneus murinus

为了解臭鼩鼱(Suneus murinu)的种群动态,本研究采用K=100W/L3作为肥满度指标,对湛江师范学院2008—2009年所捕获的485只臭鼩鼱进行肥满度分析。结果表明,臭鼩鼱的平均肥满度为1.94(±0.33)g/cm3,两性间肥满度差异极显著。肥满度的季节性变化趋势为:春季>夏季>秋季>冬季,其中夏季与秋季差异极显著。春夏季节的怀孕率较高,夏秋季节较低。

From 2008 to 2009,we captured 485 Suneus murinus to carry out the analysis of relative fatness in Zhanjiang Normal College.The relative fatness of Suneus murinu was calculated by the empirical formula K =100 W/L3,In order to understand changes in characteristics on Suneus murinus.The results showed that the average relative fatness of Suneus murinuswas 1.94（±0.33） g/cm3.The differences of relative fatness between the male and female was significant.The relative fatness varies with the seasonal change and the chang order was springautumnwintersummer.And therer was significant difference between summer and autumn.The pregnancy rate of Suneus murinu showed that it was higher in spring and summer.