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  5. 期刊论文
Effects of benthivorous fish disturbance and snail herbivory on water quality and two submersed macrophytes

文献类型：期刊论文

作者Chen, Jianfeng2,3; Su, Haojie1; Zhou, Gaoan3; Dai, Yaoyao3; Hu, Jin3; Zhao, Yihao3; Liu, Zugen2; Cao, Te1; Ni, Leyi1; Zhang, Meng2
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2020-04-15
卷号713页码:9
关键词Benthivorous fish Snail Cumulative effect Disturbance Competitive
ISSN号0048-9697
DOI10.1016/j.scitotenv.2020.136734
通讯作者Zhang, Meng(tomdeshiye@126.com) ; Xie, Ping(xieping@ihb.ac.cn)
英文摘要Benthivorous fish disturbance and snail herbivory are two important factors that determine the community structure of submersed macrophytes. We conducted an outdoor mesocosm experiment to examine the separate and combined effects of these two factors on water quality and the growth of two mixed-cultivation submersed macrophytes, Vallisneria natans and Hydrilla verdcillata, with different growth forms. The experiment involved two levels of fish (Misgurnus anguillicaudatus) disturbance crossed with two levels of snail (Radix swinhoei) intensity. The results revealed that fish activity rather than snail activity significantly increased the overlying water concentrations of total suspended solids (TSS), total nitrogen (TN), ammonia nitrogen (N-NH4), total phosphorus (TP) and phosphate phosphorus (P-PO4). However, no differences among treatments were observed for chlorophyll a (chl a) concentrations. Fish disturbance or snail herbivory alone did not affect the relative growth rate (RGR) of H. verticillata, but their combined effects significantly decreased the RGR of H. verticillata. Although snail herbivory alone did not affect the RGR of V. natans, fish disturbance alone and the combined effects of these factors drastically reduced its RGR. Both species exhibited increased free amino acid (FAA) contents and decreased ramet numbers, soluble carbohydrate (SC) contents and starch contents in the presence of the fish. Moreover, compared to H. verticillata, V. natans showed exceedingly low ramet numbers and starch contents in the presence of the fish. H. verticillata had a higher RGR and summed dominance ratio (SDR2) than V. natans in all treatments: H. verticillata also displayed a larger competitive advantage in the presence of fish disturbance. The present study suggests that (1) fish disturbance rather than snail activity increases water nutrient concentrations, (2) low snail density may be harmful to submersed macrophyte growth when the plants are under other abiotic stress conditions and (3) the competitive advantage of H. vertidllata over V. natans is more preponderant in a turbid environment. (C) 2020 Elsevier B.V. All rights reserved.
WOS关键词FRESH-WATER ; VALLISNERIA-NATANS ; AQUATIC VEGETATION ; PLANT TOLERANCE ; LIGHT ; GROWTH ; RESPONSES ; CARP ; COMMUNITIES ; METABOLISM
资助项目Education Department of Jiangxi Province of China[GJJ170968]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000514544700048
出版者ELSEVIER
资助机构Education Department of Jiangxi Province of China ; Education Department of Jiangxi Province of China ; Education Department of Jiangxi Province of China ; Education Department of Jiangxi Province of China ; Education Department of Jiangxi Province of China ; Education Department of Jiangxi Province of China ; Education Department of Jiangxi Province of China ; Education Department of Jiangxi Province of China ; Education Department of Jiangxi Province of China ; Education Department of Jiangxi Province of China ; Education Department of Jiangxi Province of China ; Education Department of Jiangxi Province of China ; Education Department of Jiangxi Province of China ; Education Department of Jiangxi Province of China ; Education Department of Jiangxi Province of China ; Education Department of Jiangxi Province of China
源URL[http://ir.ihb.ac.cn/handle/342005/35940]  
专题水生生物研究所_淡水生态学研究中心_期刊论文
通讯作者Zhang, Meng; Xie, Ping
作者单位1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China
2.Jiangxi Acad Environm Sci, 1131 Hongdu North Rd, Nanchang 330039, Jiangxi, Peoples R China
3.Jiujiang Univ, Jiangxi Prov Engn Res Ctr Ecol Chem Ind, Poyang Lake Ecoecon Res Ctr, Jiujiang 332005, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Jianfeng,Su, Haojie,Zhou, Gaoan,et al. Effects of benthivorous fish disturbance and snail herbivory on water quality and two submersed macrophytes[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,713:9.
APA Chen, Jianfeng.,Su, Haojie.,Zhou, Gaoan.,Dai, Yaoyao.,Hu, Jin.,...&Xie, Ping.(2020).Effects of benthivorous fish disturbance and snail herbivory on water quality and two submersed macrophytes.SCIENCE OF THE TOTAL ENVIRONMENT,713,9.
MLA Chen, Jianfeng,et al."Effects of benthivorous fish disturbance and snail herbivory on water quality and two submersed macrophytes".SCIENCE OF THE TOTAL ENVIRONMENT 713(2020):9.

入库方式： OAI收割

来源：水生生物研究所

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