摘要
对台湾海峡南部金色小沙丁鱼(Sardinella aurita C.＆V.)116尾雌鱼卵巢的观察,发现个体绝对生殖力(r)为35.6～146.0千粒。平均85.7千粒。个体相对生殖力(r/L)为196～712粒/mm,平均406 粒/mm;r/W为411～1 321粒/g,平均 765粒/g。r随随 L和W的增加而增加,又与L·W有密切关系。r/W与L和W的关系类似于抛物线关系。个体生殖力与年龄有关,Ⅲ龄鱼最高,Ⅳ龄鱼个体生殖力开始下降。卵径分布为0.14～0.71 mm。在每一个生殖季节金色小沙丁鱼分二次产卵。
Based on the analysis of 116 ovary samples of Sardinella aurita. the r value was found to be ranged from .35.6-146.0(×103) ,averaged 85.7 (×103) and the r/L ranged from 196-712, averaged 406 and r/W from 411-1321, averaged 756. The r value increased with the increase of L and W in a linear relationship and it was found to be closely related to L · W. The relationship between r/W and L or W is a parabolical curve. The individual fecundity is highest in age 3 and begins to decline after age 4, The ripe ova are released in two batches during spawning season.
出处
《厦门大学学报（自然科学版）》
CAS
CSCD
北大核心
1989年第5期544-548,共5页
Journal of Xiamen University：Natural Science
