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1999年夏季鳀鱼卵和仔稚幼鱼主要分布于黄海南部,122°00′～123°45′E、34°00′～35°15′N与122°15′E以西海域分别为鳀鱼卵与鳀鱼仔稚幼鱼的密集分布中心,其表层水温和盐度分别为25.5～26.9℃和27.11～31.81与26.4～27.0℃和31.31～32.05。鳀鱼卵和仔稚幼鱼分布的最适表层水温分别为25.5～26.4℃和25.9～27.0℃;全长为20mm以上的鳀鱼稚鱼已初步形成广盐性分布的习性,鳀鱼卵和仔稚幼鱼的分布对盐度的要求并不非常严格,水温是影响鱼卵和仔稚幼鱼分布的主要原因之一。鳀鱼卵和仔稚幼鱼的分布与叶绿素a的分布也有密切的关系,鳀鱼卵和仔稚幼鱼的密集分布中心正是叶绿素a的高值区。随着季节的变化,黄海南部鳀鱼产卵场由青岛外海逐渐向深水区转移。黄海南部鳀鱼活卵所占的比例为45.76％,胚胎发育状况良好。
In the summer of 1999, the anchovy eggs and juvenile juveniles were mainly distributed in the southern part of the Yellow Sea. The waters from 122 ° 00 ’to 123 ° 45’E, 34 ° 00’ to 35 ° 15’N and 122 ° 15’E west were bluefish The surface water temperature and salinity were 25.5 ~ 26.9 ℃ and 27.11 ~ 31.81 and 26.4 ~ 27.0 ℃ and 31.31 ~ 32.05, respectively, for the dense distribution centers of eggs and juvenile larvae. The optimum surface water temperatures for distribution of larvae and larvae were 25.5-26.4 ℃ and 25.9-27.0 ℃, respectively. The larvae with the total length of 20 mm or more had broad-salt distribution habit, The distribution of larvae larvae is not very salinity requirements, water temperature is one of the main reasons affecting the distribution of fish eggs and juveniles. The distribution of mullet eggs and juvenile larvae is also closely related to the distribution of chlorophyll a. The dense distribution center of mullet eggs and juvenile juveniles is the high value area of chlorophyll a. As the seasons changed, the spawning grounds of anchovy in the southern Yellow Sea gradually shifted from the offshore area of Qingdao to the deepwater area. The proportion of live eggs in the southern Yellow Sea was 45.76%, and the embryo developed well.