【摘要】 对复州湾移植放流日本对虾群体放流后１个月到回捕之间的生长特性研究表明：（１）同体长的日本对虾体重差异很小；（２）我们假定虾苗孵化时间为ｔ＝０ｄ，那么体长生长高峰在ｔ＝５０ｄ至ｔ＝９０ｄ之间，前期雄虾快于雌虾，后期雌虾快于雄虾；（３）体重增长速度呈倒二次曲线型，其拐点雌性ｔｒ＝８６３ｄ，雄性ｔｒ＝７８８ｄ；（４）合理的放流日期应在５月２０日～６月１日，开捕日期在８月上旬。更多还原

【Abstract】 In this paper,the growth characteristics of Penaeus japonicus from one month after releasement to recapture date was studied.The result was as follows:(1)The weight difference is small among the same body length shrimps.(2)Suppose the hatching time (t) equals 0 day.then,the growth peak is between 50 day and 90 day.The growth rate of male shrimp is more than that of female shrimp in earlier stage;In later stage,the result is the contrary.(3)The increasing body weight rate present converse squarecurve characteristic.The turning point:tr=863d(female),tr=788d(male).(4)The duration of optimal releasing is from May,20 to June,1.The allowed capture date is in the first ten day period of August.更多还原