Experimental Studies On The Behavior And Physio-ecology Of Penaeid Shrimps

This paper reviews the research advances at home and abroad on the behavior and the effects of environmental factors on the behavior of penaeid shrimps, observes the behavioral characteristics and differences of Chinese shrimp Fenneropenaeus chinensis and whiteleg shrimp Litopenaeus vannamei reared at high-density culture condition, studies the behavioral strategies and physiological mechanisms of both species to the changes in starvation, stocking density, food density, substrate and salinity under different culture mode, and measures the starvation resistance of F. chinensis and the hypoxia resistance and swimming ability of whiteleg shrimp L. vannamei. The most results are summarized as follows:1, Observations of behavior in Fenneropenaeus chinensis and Litopenaeus vannamei postlarvae The feeding, cannibalism, locomotion, spacing, attacking and defence of Fenneropenaeus chinensis and Litopenaeus vannamei postlarvae reared in high-density environment were observed at 22±1℃. The effect of aeration on behavior of F. chinensis and L. vannamei postlarvae were also investigated. They both showed preference for Artemia nauplii. The F. chinensis postlarvae appeared frequently cannibalism, active, obvious spacing and high-frequently attacking. The L. vannamei postlarvae appeared less cannibalism, less active, unconspicuous spacing and low-frequently attacking. Both of the two species were significantly affected by aeration. Aeration could not only increase the feeding chance, improve the feeding ability and locomotion activity, but also decrease the cannibalism and attacking behavior, reduce the spacing behavior.2, The study on effect of starvation on behavior and physio-ecology of Litopenaeus vannamei postlarvae Semi-intensive culture mode (SCM) and intensive culture mode (ICM) were designed...