作　　者： ; ; ; ; (陈加林）; (陈希）; (徐广庭）;

机构地区： 中山大学生命科学学院

出　　处： 《动物学杂志》 2010年第2期143-150,共8页

摘　　要： 以14头(9雄,5雌)珠江口水域成年中华白海豚(Sousa chinensis)的外部形态、颅骨和肢带骨的69个变量为研究对象,进行单因素方差分析,探讨雌雄个体在形态学方面的差异,为比较不同水域中华白海豚的形态学特征,进行区域性形态学分析,了解中华白海豚形态学的地理差异奠定基础。结果显示,在所研究的外部形态指标中,珠江口中华白海豚在外部形态上雌雄没有显著差异,两性在颅骨和肢带骨中各有一组变量存在差异,大部分指标雌性大于雄性。本研究为今后建立以骨骼为基础的性别辨别函数奠定基础。 Characteristics of appearance,skull,scapula and fin bones morphology were described by 69 measurements taken from 14 specimens Sousa chinensis dead in the Pearl River Estuary. Those measurements were analyzed by one-way ANOVA to reveal the sexual dimorphism between individuals from different geographic locations. No difference was found in external measurements between male and female, but significant difference was detected in partial measurements on skull,scapula and fin bones between male and female. In general,the mean values of most measurements were larger in female than those in male.

关 键 词： 中华白海豚 外部特征 颅骨 肢带骨 两性差异

领　　域： [生物学]