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The effects of Zhikong scallop (Chlamys farreri) on the microbial food web in a phosphorus-deficient mariculture system in Sanggou Bay, China
Lu, Jiachang1,2; Huang, Lingfeng2; Xiao, Tian3; Jiang, Zengjie4; Zhang, Wuchang3
2015-11-01
发表期刊AQUACULTURE
卷号448期号:2015页码:341-349
文章类型Article
摘要Sanggou Bay is a phosphorus (P)-deficient and nitrogen-sufficient mariculture area, and the culture of the Zhikong scallop, Chlamys farreri, is important there. We established a 7-day enclosure experiment in situ to simulate the effects of the Zhikong scallop on the microbial food web in the bay. The results showed that scallop cultivation increased the concentration of PO43-(from 0.04 mu M at the initial to 0.26 mu M at the end of the enclosure experiment) and the abundance of picoplankton (heterotrophic bacteria, Synechococcus and picoeukaryotes), total nanoflagellates and ciliates. Following the enclosure experiment, the 6-day P-enrichment (similar to 0.3 mu M) and 3-hour feeding experiments were conducted in field to study why scallop cultivation strengthened the microbial food web. The results showed that P-enrichment stimulated the growth of major microbial components when their predators were removed or suffered grazing pressure. The scallops did not efficiently retain picoplankton. The retention efficiency of the Zhikong scallop dropped with decreasing prey size, and the retention efficiencies for ciliates, 5-10 mu m nanoflagellates and <5 mu m nanoflagellates were 83.22%, 63.27% and 22.62%, respectively. It was suggested that P release by scallops may increase the abundance of main assemblages in the microbial food web, but the influence of the nutrient release into natural water may be partially diminished by trophic cascades within the microbial food web. However, the different retention efficiencies of the scallop on the different components of the microbial food web may weaken the strength of trophic cascades.
关键词Chlamys Farreri Heterotrophic Bacteria Synechococcus Picoeukaryotes Nanoflagellates Ciliates Microbial Food Web Nutrients Sanggou Bay
DOI10.1016/j.aquaculture.2015.06.021
收录类别SCI
语种英语
WOS记录号WOS:000360189000045
引用统计
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/50108
专题海洋生态与环境科学重点实验室
作者单位1.Xiamen Univ, Coll Ocean & Earth Sci, Xiamen 361102, Peoples R China
2.Xiamen Univ, Key Lab, Minist Educ Coastal & Wetland Ecosyst, Xiamen 361102, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
4.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Key Lab Sustainable Dev Marine Fisheries, Minist Agr, Qingdao 266071, Peoples R China
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Lu, Jiachang,Huang, Lingfeng,Xiao, Tian,et al. The effects of Zhikong scallop (Chlamys farreri) on the microbial food web in a phosphorus-deficient mariculture system in Sanggou Bay, China[J]. AQUACULTURE,2015,448(2015):341-349.
APA Lu, Jiachang,Huang, Lingfeng,Xiao, Tian,Jiang, Zengjie,&Zhang, Wuchang.(2015).The effects of Zhikong scallop (Chlamys farreri) on the microbial food web in a phosphorus-deficient mariculture system in Sanggou Bay, China.AQUACULTURE,448(2015),341-349.
MLA Lu, Jiachang,et al."The effects of Zhikong scallop (Chlamys farreri) on the microbial food web in a phosphorus-deficient mariculture system in Sanggou Bay, China".AQUACULTURE 448.2015(2015):341-349.
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