Diel and seasonal changes of carbon dioxide emission from mollic - cryic cambisols on degraded grassland 2释放的日变化和季节动态
3.
The seasonal variation in diel egg production in winter - spring with lower temperature of seawater the copepods tended to lay in night , while in summer with higher temperature of seawater they tended to lay in daytime . that is , it showed the seasonal variation in diel egg production of model 昼夜产卵量的季节变化在温度较低的冬春季厦门海区的瘦尾胸刺水蚤雌体趋于夜间产卵，而在温度较高的夏季趋于日间产卵，呈现出季节性昼夜产卵模式。
4.
The seasonal and diel variation in fecundity of females in situ . were observed , and the pattern of spawning and its ecological significance were also discussed . the differences of biochemistry component , respiration , isoenzyme , and total proteins electrophoresis between diapause and subitaneous eggs were preliminarily investigated as well 本文通过对海区雌体现场产卵情况季节性和昼夜性变化的观察结合海区环境的季节变化，探讨其产卵变化的规律和生态意义；还初步研究了刚产出的滞育卵与正常卵的生化成分差异、呼吸代谢特征、同工酶差异和全蛋白电泳差异。
5.
Studies were carried out on the distribution , abundance and growing condition of euphausia superba in the southern ocean , and on the spatial distribution , diel vertical migration and egg production , hatchability and early larval development of euphansia pacijica in the east china sea and the yellow sea 本文分别对南大洋磷虾关键种? ?大磷虾euphausiasuperbadana和黄、东海磷虾关键种? ?太平洋磷虾euphausiapacificahansen的某些生态学问题进行了研究，主要研究内容和结果如下： 1
