摘要
本文针对海鳗暂养出口需要，进行了暂养海鳗行为习性的试验观察。结果表明：暂养海鳗有明显的昼伏夜出习性。早晨、傍晚比较活跃，钻穴性极强。夜间摄食量高于白天。当环境不适时易出现“反胃”现象。耐饥饿能力强。喜停留在照度较弱的区域。夜间有微趋光性等特点。
The expetimental observations on the behaviors of the eel Muraenesox cinereus(Forskar)were carried out for the purpose of raising the survivalrate of the fishes during the temporary culture period ready for the exportationin living state.The experiments were taken place in concrete ponds (φ10m,H_2m)and FRP ponds (510×120×85 cm,150×60×50 cm) of our ecologiclaboratories towards 341 living specimens collected in 1988-1990 in zhejiangcoast areas.The behaviors of the eel are characterised mainly as follows: It is obvious that the fish school keeps unmoving at daytime, particularly it appeared asa special cave habitant, and be in activity at night,and more active in themorning and evening.Feed well at night that at daytime with strong tole-rance of hnngry, but sometimes it occured to throw up the stomach underthe unacceptable environments.The fish adapts to the weak intensity ofillumination with phototaxis to a certain extent at night.
基金
浙江省教委科研项目
关键词
海鳗
行为习性
研究
Eel,Experimental observations
