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	Responses of periphyton on non-plant substrates to different macrophytes under various nitrogen concentrations: a mesocosm study
	Cao, Yu1,2; Zhang, Na1,2; Sun, Junyao1,2; Li, Wei1,2
刊名	Aquatic botany
	2019-03-01
卷号	154页码:53-59
关键词	Periphyton biomass Epipsammon Epilithon Non-metric multidimensional scaling Neighboring macrophytes
ISSN号	0304-3770
DOI	10.1016/j.aquabot.2019.01.003
通讯作者	Li, wei(liwei@wbgcas.cn)
英文摘要	Periphyton in aquatic ecosystems is comprised of algae, heterotrophic microbes, and detritus. in shallow lakes, periphyton is affected by substrate type, nutrient supply, and other factors. periphyton on macrophytes can interact strongly with the host, but whether different periphyton on non-plant substrates are affected by nearby submerged macrophytes is unclear. we conducted a six-month mesocosm study to investigate the responses of periphyton (on sand, cobblestone, or plastic) to different nitrogen concentrations (i.e., 10 mg l-1 ammonia, 10 mg l-1 nitrate, or no addition) in the presence of different macrophyte species (i.e., vallisnerta spinulosa, potwnageton wrightii, and potamogeton maackianus). periphytic pigment content (chlorophyll and pheophytin), nutrient accrual (carbon, nitrogen, and phosphorus), carbon:chlorophyll ratio, and algal species composition were determined at the end of the experiment. results showed that substrate type was critical for all periphyton parameters. periphytic nutrient accrual and the carbon:chlorophyll ratio were both higher on sand than on the other two substrates. nitrogen concentrations had a considerable effect on periphytic chlorophyll-a, nitrogen, and phosphorus accrual. in particular, the addition of ammonia (but not nitrate) led to significantly higher periphytic chlorophyll-a than the treatment without nitrogen. furthermore, periphytic algal species richness and diversity were lower in the presence of p. wrightii than in the presence of the other macrophyte species. thus, in addition to the importance of substrate type and nitrogen concentration, the species composition of nearby submerged macrophytes could potentially influence the periphyton community on a non-plant substrate.
WOS关键词	SUBMERGED MACROPHYTES ; NUTRIENT LIMITATION ; ARTIFICIAL SUBSTRATA ; BENTHIC ALGAE ; COMMUNITY ; SHALLOW ; PHOSPHORUS ; PHYTOPLANKTON ; TEMPERATURE ; GROWTH
WOS研究方向	Plant Sciences ; Marine & Freshwater Biology
WOS类目	Plant Sciences ; Marine & Freshwater Biology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000462107500009
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2373156
专题	武汉植物园
通讯作者	Li, Wei
作者单位	1.Chinese Acad Sci, Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan 430074, Hubei, Peoples R China 2.Chinese Acad Sci, Hubei Key Lab Wetland Evolut & Ecol Restorat, Wuhan Bot Garden, Wuhan 430074, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Cao, Yu,Zhang, Na,Sun, Junyao,et al. Responses of periphyton on non-plant substrates to different macrophytes under various nitrogen concentrations: a mesocosm study[J]. Aquatic botany,2019,154:53-59.
APA	Cao, Yu,Zhang, Na,Sun, Junyao,&Li, Wei.(2019).Responses of periphyton on non-plant substrates to different macrophytes under various nitrogen concentrations: a mesocosm study.Aquatic botany,154,53-59.
MLA	Cao, Yu,et al."Responses of periphyton on non-plant substrates to different macrophytes under various nitrogen concentrations: a mesocosm study".Aquatic botany 154(2019):53-59.

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