title: Bioremediation efficiency of the largest scale artificial Porphyra yezoensis cultivation in the open sea in China.
abstract: 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.
authors: 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.
authors: Hailong
authors: H
authors: Wu
authors: 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.
authors: Yuanzi
authors: Y
authors: Huo
authors: 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.
authors: Jianheng
authors: J
authors: Zhang
authors: 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.
authors: Yuanyuan
authors: Y
authors: Liu
authors: 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.
authors: Yating
authors: Y
authors: Zhao
authors: 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. Electronic address: 496220326@qq.com.
authors: Peimin
authors: P
authors: He
mesh_terms: D017756:Aquaculture; D001673:Biodegradation, Environmental; D044822:Biodiversity; D002681:China; D002734:Chlorophyll / Q000032:analysis; D000077194:Chlorophyll A; D052918:Environmental Restoration and Remediation; D005068:Eutrophication; D057097:Harmful Algal Bloom; D009584:Nitrogen / Q000378:metabolism; D009792:Oceans and Seas; D010758:Phosphorus / Q000378:metabolism; D010839:Phytoplankton; D044664:Porphyra / Q000502:physiology*; D000461:Rhodophyta; D012623:Seawater / Q000032:analysis
chemical_list: D002734:Chlorophyll; D010758:Phosphorus; D009584:Nitrogen; D000077194:Chlorophyll A
keywords: Bioremediation; Eutrophication; Porphyra yezoensis; Red tide