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本文对黄海南部小黄鱼繁殖群体进行了常规生物学测定。研究分析了体长组成和体重 组成、体长和体重关系、性比的变化、怀卵量及性腺的发育情况。总样品的性比组成为雌： 雄=1:2.7，且雄鱼比例逐月上升；测算其怀卵量在2686—34704粒之间，平均怀卵量为9518 粒；性成熟系数3月中旬为116‰，4月中旬最高为210‰，5月上旬为114‰，5月下旬只有33 ‰；绝对繁殖力（F）与体重（W）的关系式为：F=549.37W－4861.7（R=0.917）。
In this paper, the Yellow Sea southern small yellow croaker breeding population for routine biological determination. The body composition and body weight composition, body length and body weight, sex ratio changes, the amount of egg and gonadal development were studied and analyzed. The sex ratio of the total sample was female: male = 1: 2.7, and the proportion of male fish increased month by month; the estimated fecundity was between 2686-34704 and average fecundity was 9518; and the sexual maturity index was mid March 116 ‰, the highest was 210 ‰ in mid April, 114 ‰ in early May and only 33 ‰ in late May. The relationship between absolute fecundity (F) and body weight (W) was: F = 549.37W-4861.7 (R = 0.917).