The age composition, growth, and fecundity of was studied based on 209 samples collected in Jiaozhou Bay, Qingdao, in 2013 and 2014. Age was determined from the otoliths, which showed that the age of years, with a dominant age group of 2⁺-4⁺ years (77.5%). The relationship between the body length and bodyweight of =0.861). The von Bertalanffy growth equations for the body length and bodyweight of +2.697]) and 2.797, respectively. The growth of was initially rapid and then gradually stabilized. Its growth history could be divided into three stages: (1) rapid growth at 1⁺-3⁺ years old; (2) mature and stable growth at 3⁺-6⁺ years old; and (3) aged period at > 6⁺ years old. The sex ratio of < 0.05), and at every growth stage, the number of females was higher than that of males. The gonadal index and hepatosomatic index displayed opposite trends, suggesting that the liver of provides material and energy for gonadal maturation. The absolute fecundity of individuals ranged from 482 to 6166 grains (mean 3266 grains) and the individual relative fecundity was lower than that of oviparous fish, suggesting that this kind of reproductive strategy allows to maintain its population continuity with lower fecundity. Based on the age at inflection point and the body length at 50% sexual maturity, we suggest that a body length of 80 mm and a bodyweight of 20 g be set as the minimum landing standards for , to protect the fishery resource in Jiaozhou Bay, Qingdao.