摘要
研究了黄颡鱼早期发育阶段摄食的昼夜节律性及日摄食率。结果如下 :黄颡鱼仔稚鱼摄食具有明显的昼夜节律性。胃平均饱满指数在仔鱼前期、仔鱼后期和稚鱼期分别于 2 1:0 0、3:0 0、6 :0 0达最高峰 ,均于15 :0 0达最低值。不同发育阶段的日摄食率分别为 :仔鱼前期 6 9 96 % ,仔鱼后期 2 8 84 % ,稚鱼期 10 0 0 %。
The feeding rhythm and the daily feeding rates of pelteobagrus fulvidraco in early life history are Stucliecl.The results are as following:day and night feeding rhythm is observed apparently in larval and juvenile stages.The peak index of fullness lies at 21:00 in pre-larval stage,3:0 0 in post-larval stage and 6:00 in juvenile stage.The daily feeding rates varies with the development.in those three stages,the daily feeding rates are 69 96% ,28 84%and10 00%respectively.
出处
《水产学杂志》
CAS
2001年第2期66-68,共3页
Chinese Journal of Fisheries
关键词
黄颡鱼
仔稚鱼
摄食节律
日摄食率
早期发育阶段
pelteobagrus fulvidraco
larvae and juvenile
feedi ng rhythm
daily feeding rate
