黑斑口虾蛄的形态参数关系的分析

Analysis on Morphological Parameters of Oratosquilla kempi

对 50 6尾黑斑口虾蛄 (Oratosquillakempi)的体长、头胸甲长、尾扇长、体重、肉壳重和肉壳干重、性腺重等进行了测定分析 .研究表明 :黑斑口虾蛄的体长与体重呈幂函数关系 .体长与头胸甲长、尾扇长 ,体重与肉重、壳重、性腺重都呈线性相关 .这些形态参数在雌雄间有一定差异 ,雄性在 12月份 ,肥满度最大 ,雌性从 3月份开始肥满度不断上升 ,5月份达到最大 .据推测 ,黑斑口虾蛄的繁殖期在 4～ 8月 .

The body length,carapace length,cercus length, body weight,crust weight et al. of 506 Oratosquilla kempies were determined.The result shows that the relationship between body length and body weight is power functional,between body length and carapace, body length and cercus is linear, and body weight is linear to fresh weight,crust weight and sex gland weight.These morphological paramenters are different between females and males. The grossness index of males is biggest in December,and of females begin to increase in March and reach biggest in May.It is proposed that the propagation time is during April to August.