Wu Hailong, Huo Yuanzi, Zhang Jianheng, Liu Yuanyuan, Zhao Yating, He Peimin
College of Fisheries and Life Sciences, Shanghai Ocean University, Shanghai 201306, China; Marine Scientific Research Institute, Shanghai Ocean University, Shanghai 201306, China; Water Environment & Ecology Engineering Research Center of Shanghai Institution of Higher Education, Shanghai 201306, China.
College of Fisheries and Life Sciences, Shanghai Ocean University, Shanghai 201306, China; Marine Scientific Research Institute, Shanghai Ocean University, Shanghai 201306, China; Water Environment & Ecology Engineering Research Center of Shanghai Institution of Higher Education, Shanghai 201306, China.
Mar Pollut Bull. 2015 Jun 15;95(1):289-96. doi: 10.1016/j.marpolbul.2015.03.028. Epub 2015 Apr 9.
The bioremediation efficiency of China's largest scale Porphyra yezoensis cultivation for removing dissolved nutrients and controlling harmful algae was studied in the radial sandbanks waters of Jiangsu Province in the year 2012-2013. Mean nutrient concentration values in the P. yezoensis cultivation area were significantly lower than those in the non-cultivation area, especially during the cultivation season (p<0.05). Tissue nitrogen and phosphorus contents of seaweeds were 5.99-0.80% (dry weight (DW)) and 0.16-0.19% (DW), respectively. Production of P. yezoensis was 58950.87tons DW. Based on these values, 3688.15tons of tissue nitrogen and 105.61tons of tissue phosphorus were removed by harvesting P. yezoensis. The richness index of the red tide species Skeleton emacostatum declined from 0.32 to 0.05 during the P. yezoensis cultivation season. These results indicate that large-scale cultivation of P. yezoensis can be used to efficiently alleviate eutrophication and control harmful algae blooms in open sea.
2012 - 2013年，在江苏省辐射沙洲水域对中国最大规模条斑紫菜养殖去除溶解态营养物质和控制有害藻类的生物修复效率进行了研究。条斑紫菜养殖区的平均营养盐浓度值显著低于非养殖区，尤其是在养殖季节（p<0.05）。海藻的组织氮和磷含量分别为5.99 - 0.80%（干重）和0.16 - 0.19%（干重）。条斑紫菜产量为58950.87吨干重。基于这些数值，通过收获条斑紫菜去除了3688.15吨组织氮和105.61吨组织磷。在条斑紫菜养殖季节，赤潮物种中肋骨条藻的丰富度指数从0.32降至0.05。这些结果表明，大规模养殖条斑紫菜可有效缓解公海富营养化并控制有害藻华。
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