Abstract:Five different pond cultivation patterns of Gracilaria bursapastoris were set and the effects of temperature,salinity, pH, and illumination intensity on the growth of algae were examined. The results indicated that water temperature and illumination intensity had significant influence on the growth of G.bursapastoris. The effects of salinity and pH were slight. The conditions of water temperature of 20~30℃,illumination intensity＜3,000 lx,100% water exchange per 64h,bottom sowing at a water depth of 3m were suitable for the growth of G. bursapastoris. The growth rate was greatly improved when periodical thinning was carried out.
