文章摘要
王迎春.光照对黄盖鲽仔鱼生长_发育及摄食的影响[J].水产学报,1999,23(1):
光照对黄盖鲽仔鱼生长_发育及摄食的影响
EFFECTS OF LIGHT ON GROWTH, DEVELOPMENT AND FEEDING OF LARVAL LIMANDA YOKOHAMAE
投稿时间:2014-04-18  修订日期:2014-04-18
DOI:
中文关键词: 黄盖鲽 仔鱼 光照 生长 发育 育苗
英文关键词: Limanda yokohamae, Larvae, Light , Grow th, Development , Feeding
基金项目:本研究为国家自然科学基金资助项目, 编号: 39470556。
作者单位地址
王迎春 上海水产大学渔业学院 上海水产大学渔业学院
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中文摘要:
      光照对黄盖鲽仔鱼的生长、发育及摄食有显著影响, 各组仔鱼的体长与体高在20 日龄时均产生了极显著的差异; Duncan 多范围检验表明: 40~ 60 lx 光照度下仔鱼生长最好; 在40 ~ 7000 lx 范围内随光照度的增强, 生长则变差, 存活率下降, 畸形个体增加。黑暗条件下及3~ 6 lx 条件下的仔鱼在12 日龄时全部因饥饿而死亡。在卵黄囊期的各组仔鱼不受外界环境影响, 生 长情况近似。40~ 7000 lx 光照度之间的5 组在4 日龄至20 日龄之间体长与日龄表现为直线关 系, 体高与日龄表现为指数函数关系。仔鱼的摄食强度( 10: 00~ 14: 00) 在40~ 7000 lx 范围内随 光照度增强而减弱。18: 00~ 22: 00 时区之间如给以适当光照, 则仔鱼亦会有相当的摄食强度。黄 盖鲽仔鱼在20 日龄以内的适宜水中光照度为40~ 600 lx 。
英文摘要:
      T his paper deals w ith the effects of different lig ht intensity on the growth, development and feeding of larval L imanda y okohamae. The result s are as follows: Light has important inf luence on the grow th, development and feeding of larval Limanda yokohamae. The body length and height of every group of larvae on the twenieth day all show s fair evident difference. Duncan New Mult iple Range T est show s: Under the light intensity rang ing f rom 40 to 60 lx , the grow th and development of larvae are the best. Within the lig ht intensity of 40 to 7000 lx , the stronger the light intensity is, the worse the grow th is, the lower the surv ival rate is, the more the abnormal larvae are. The larvae under complete darkness and under the lig ht intensity of 3 to 6 lx are all dead on the 12th day because of starvation. In the yolk-sac stage, the g row th of every group of larvae is not influenced by the ex ternal env ironment and is similar to all. From the 4th to 20th day, the grow th of body length of 5 groups of larvae under 40 to 7000 lx show straight line relat ion to age, and the g row th of body height show s exponential funct ion relat ion to age. From 40 lx to 7000 lx, the feeding intensity ( 10: 00- 14: 00) of larvae is discreased w ith the increase of light intensity. If the appropriate lig ht intensity is g iven between 18: 00 and 22: 00 , the larvae can also have fair feeding intensity . The suitable light intensity for larvae before the 20th day is 40- 600 lx.
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