气候变化领域集成服务门户(CCPortal): Sargassum henslowianum as a potential biofilter in mariculture farms of a subtropical eutrophic bay

CCPortal

DOI	10.1016/j.marpolbul.2019.110615
	Sargassum henslowianum as a potential biofilter in mariculture farms of a subtropical eutrophic bay
	Yu Z.; Sun H.; Huang W.; Hu C.; Zhou Y.
发表日期	2019
ISSN	0025326X
卷号	149
英文摘要	Mariculture has caused negative environmental impacts on the marine ecosystem in Dapeng Cove, Daya Bay, South China Sea. In this study, the brown macroalgae Sargassum henslowianum was introduced into fish and oyster farms as a biofilter to evaluate its bioremediation potential. We examined the temporal dynamics of seaweed growth, tissue nutrients (N and P), and heavy-metal contents (Cu and Zn) over a 100-day culture period (December 2012 to March 2013). The thalli of seaweed grown in the fish farm suffered greater from fouling and predation than those grown in the oyster farm. The specific growth rates by wet weight of S. henslowianum for the first three culture periods were all significantly higher in the oyster farm (at 6.30, 6.90, and 2.18% d−1) than the rates in the fish farm (at 2.77, 4.19, and −1.16% d−1). The tissue nutrients and heavy-metal contents of the seaweed at both sites all varied significantly with time. The estimated N bioaccumulation efficiency of seaweed at the oyster farm increased with time (from −34.44 to 62.91 mg thallus−1 d−1) until late February, but values for the seaweed at the fish farm (−4.70 to 7.19 mg thallus−1 d−1) increased only until late January. N bioaccumulation efficiency was significantly higher for seaweed in the oyster farm than for seaweed in the fish farm up to February 23; similar trends were found for the P, Cu, and Zn bioaccumulation efficiencies. We conclude that large-scale cultivation of S. henslowianum in the oyster farms of Dapeng Cove should be the first choice to alleviate eutrophication and improve water quality, and the seaweed biomass should be harvested by late February, allowing it to accumulate the optimum amount of nutrients and heavy metals from the water column. © 2019 Elsevier Ltd
英文关键词	Aquaculture pollution; Bioaccumulation; Biofilter; Heavy metals; Nutrients; Seaweed
语种	英语
scopus关键词	Aquaculture; Bioaccumulation; Biochemistry; Biofilters; Bioremediation; Ecosystems; Efficiency; Eutrophication; Fish; Heavy metals; Marine biology; Molluscs; Nutrients; Shellfish; Tissue; Tropics; Water quality; Bioremediation potentials; Heavy metal contents; Large scale cultivations; Oyster farms; South China sea; Specific growth rate; Temporal dynamics; Water columns; Seaweed; copper; nitrogen; phosphorus; zinc; bay; bioaccumulation; biofiltration; bioremediation; brown alga; eutrophic environment; eutrophication; heavy metal; mariculture; nutrient; pollution control; seaweed; subtropical region; algal growth; Article; bay; bioaccumulation; biofouling; biomass; bioremediation; content analysis; controlled study; eutrophication; fish; growth rate; intermethod comparison; macroalga; mariculture; nonhuman; nutrient supply; oyster; predation; Sargassum henslowianum; seaweed; species cultivation; water quality; China; Daya Bay; Guangdong; Pacific Ocean; South China Sea; Ostreidae; Sargassum henslowianum
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/149467
作者单位	College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China; South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China; Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China; Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071, China
推荐引用方式 GB/T 7714	Yu Z.,Sun H.,Huang W.,et al. Sargassum henslowianum as a potential biofilter in mariculture farms of a subtropical eutrophic bay[J],2019,149.
APA	Yu Z.,Sun H.,Huang W.,Hu C.,&Zhou Y..(2019).Sargassum henslowianum as a potential biofilter in mariculture farms of a subtropical eutrophic bay.Marine Pollution Bulletin,149.
MLA	Yu Z.,et al."Sargassum henslowianum as a potential biofilter in mariculture farms of a subtropical eutrophic bay".Marine Pollution Bulletin 149(2019).