中华乌塘鳢个体生殖力的研究

研究了湛江沿海中华乌塘鳢个体生殖力及其与生物学指标的关系。结果表明 :个体绝对生殖力为 840 0～ 3 3 2 70粒 ,个体相对生殖力FL 为 5 67 6～ 1 83 3 2粒 /cm ,Fw为 1 5 5 6～ 482 7粒 /g ;个体绝对生殖力与体长、体重、空壳重、卵巢重呈直线相关 ,与年龄呈二次函数相关 ,与成熟系数和肥满度相关关系不显著 ;个体相对生殖力FL 与各生物学指标正相关 ,Fw除了与卵巢重、肥满度和年龄相关关系不显著外 ,其余均显著相关

Studies on the Individual Fecundity of Bostrichthys sinensis

The individual fecundity of Bostrichthys sinensis in the littoral water of Zhanjiang and the relationship between the individual fecundity and the biological character indexes were studied. The results showed that the individual absolute fecundity varied from 8400 to 33270 eggs, the individual relative fecundity F/L (F =egg number, L =body length) varied from 567.6 to 1 833.2 eggs/cm, and F/W n (W n=net body weight) varied from 155.6 to 482.7 eggs/g. The individual absolute fecundity was linearly and directly correlative to body length, body weight,net body weight and ovary weight respectively. The relationship between individual absolute fecundity and age was expressed in quadratic function. The individual absolute fecundity had no obvious relationship with maturity coefficient and condition factor. The individual relative fecundity F/L was positively correlated to these biological character indexes. The individual relative fecundity F/W was significantly correlated to these biological character indexes except for ovaryweight, condition factor and age.