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文中对大西洋牙鲆仔、稚、幼鱼各期发育时间及特征进行观察记录,并对各发育阶段进行显微摄像。大西洋牙鲆室内人工育苗水温18℃～22℃,盐度30,pH8.2,光控500Lx左右。饵料为强化的轮虫、卤虫无节幼体和配合饲料。初孵仔鱼肠道细而直,孵化后3d～4d肛门开通并开口摄食,6d～7d卵黄囊吸收完毕,仔鱼前期阶段结束。仔鱼后期阶段,消化道弯曲,冠状幼鳍完全形成,右眼开始上升。稚鱼期右眼完全迁移至左侧,变态完成,营底栖生活。幼鱼期基本具有成鱼的外部形态和习性。
In this paper, the developmental stages and characteristics of the flounder, juvenile and juvenile Atlantic flounder (Paralichthys olivaceus) were observed and recorded, and microscopic images of each stage were made. Paralichthys olivaceus indoor artificial breeding seedlings water temperature 18 ℃ ~ 22 ℃, salinity 30, pH8.2, light control 500Lx or so. Feed for the enhanced rotifers, Artemia nauplii and feed. The newly hatched larvae were fine and straight, and the anus was opened and opened for feeding after 3d ~ 4d incubation. The yolk sacs were absorbed after 6d ~ 7d, and the larval end of the larval stage was completed. Late stage larvae, digestive tract curvature, coronal young fin completely formed, the right eye began to rise. The juvenile right eye completely migrated to the left, perverted to complete camp benthic life. The juvenile period basically has the external shape and habit of adult fish.