Abstract: Penaeus mzeryuiensis is an important commercial shrimp in waterssurrounding Laoahou Island, where.mergue,sis has 41.8-69.fian retchcomponent of shrimp species. Spawning season is January to June and its peakperiod is in April and May. The maturity of ovary cell is net unanimous. The ma-turity cell drain in batches. Two times of law salinity period and once of alow temperature period showed in a year. The quantitative fluctuation of juvenileshrimp has a close correlation with temperature and salinity in spawning season.Gxawth and mortality par:meters were also estimated in this paper. Yield perrecruit anal length-cohort analysis have been used to make the stank assessment.