1982-1983渤海半滑舌鳎的生殖习性及产卵生态的研究数据集

本数据集是根据1982年4月至1983年5月在渤海进行的基础调查所获资料，对半滑舌鳎随水温和月份在渤海的分布，随月份变化雌雄鱼的占比、个体的体长、怀卵量等生殖习性，产卵场及环境条件、产卵期与水温的关系和卵子发育状况进行分析，得出半滑舌鳎在渤海的分布范围很广，但数量不大，早期发育阶段的受精率、孵化率和成活率很低，雌雄性比有明显的季节变化：雌雄个体和性腺的大小差异较大，特别是精巢，卵巢的差异悬殊的结论。

This dataset is compiled from data collected during a baseline survey conducted in the Bohai Sea from April 1982 to May 1983. Analyses were carried out to investigate the distribution of the half-smooth tongue sole (Cynoglossus semilaevis) in the Bohai Sea in relation to water temperature and month, its reproductive characteristics including monthly variations in the male-female ratio, individual body length and fecundity, as well as spawning grounds and their environmental conditions, the correlation between spawning period and water temperature, and the developmental status of eggs. The study concluded that the half-smooth tongue sole has a wide distribution range but low population abundance in the Bohai Sea; the fertilization rate, hatching rate and survival rate are very low during its early developmental stages; the sex ratio exhibits significant seasonal variations; and there are considerable differences in size between male and female individuals and their gonads, with particularly striking disparities between testes and ovaries.