中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 重庆绿色智能技术研究院
  3. 中国科学院重庆绿色智能技术研究院
Multi-year succession of cyanobacteria blooms in a highland reservoir with changing nutrient status, Guizhou Province, China

文献类型：期刊论文

作者Long, Shengxing1; Hamilton, Paul B.2; Yang, Yang1; Ma, Jianrong3; Chobet, Ondhoro C.4; Chen, Chuan5; Liu, Zhiwei1; Dong, Xian5; Dang, Anzhi5; Chen, Jingan6
刊名JOURNAL OF LIMNOLOGY
出版日期2018
卷号77期号:2页码:232-246
关键词Aphanizomenon competitive succession cyanobacteria blooms Microcystis nitrogen and phosphorus Pseudanabaena
ISSN号1129-5767
DOI10.4081/jlimnol.2018.1636
通讯作者Yang, Yang(yangyang@scies.org)
英文摘要Over the last 22 years significant phytoplankton changes in Hongfeng lake reservoir have been observed with multiple years of harmful cyanobacteria blooms (cHABs). Fish farming and other anthropogenic activities from 1994-2001 triggered the harmful blooms. Nine years after the cessation of aquaculture, a conversion from problematic species (Alicrocystis spp. Aphanizomenon flos-aquae) to the less problematic species P. limnetica and other associated non-cyanobacteria taxa was recorded. Through this period of change, trophic factors (bottom-up) were re-examined, and correlations between cHABs and selected environmental variables were observed. Higher temperatures, nutrients [total nitrogen (TN). total phosphorus (TP)] and available light significantly favored the development of Microcystis spp blooms. With declining nutrient loads, and a decline in TP relative to TN there was a competitive shift from Microcystis summer blooms to the growth of Pseudanabaena limnetica and other non-cyanobacteria. Pseudanabaena limnetica was favored over Microcystis spp when temperatures were <20 degrees C and TP was <0.03 mg L-1. The apparent species succession to P. limnetica was enhanced by a competitive advantage under varied light conditions. Multiple environmental and biotic conditions (not always nutrients) were driving cHABs. Although only a selected number of environmental variables were examined. the CCA analysis supports observations that temperature and nutrients were associated with the species shift. The replacement of cHABs with the growth of less toxic cyanobacteria like P. limnetica. and other algae creates an interesting scenario (new community condition) for the removal of problematic taxa in reservoir systems. Diverting or controlling blooms will have direct implications on water quality and economic remediation initiatives in reservoir and lake management.
资助项目Research Project of Social Development of Guiyang City[5-3] ; Research Project of Social Development of Guiyang City[59] ; National Natural Science Foundation of China-Guangdong United Foundation[U1501235] ; Canadian Museum of Nature
WOS研究方向Marine & Freshwater Biology
语种英语
WOS记录号WOS:000456091500006
出版者PAGEPRESS PUBL
源URL[http://119.78.100.138/handle/2HOD01W0/7311]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Yang, Yang
作者单位1.Jinan Univ, Coll life Sci & Technol, Guangzhou 510632, Guangdong, Peoples R China
2.Canadian Museum Nat, POB 3443,Stn D, Ottawa, ON K1P 6P4, Canada
3.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Key Lab Reservoir Aquat Enviromnent, Chongqing 400714, Peoples R China
4.Buginyanya Zonal Agr Res & Dev Inst, POB 1356, Mbale, Uganda
5.Guizhou Normal Univ, Guiyang 550001, Guizhou, Peoples R China
6.Chinese Acad Sci, Inst Geochem, Guiyang 550001, Guizhou, Peoples R China
推荐引用方式
GB/T 7714		 Long, Shengxing,Hamilton, Paul B.,Yang, Yang,et al. Multi-year succession of cyanobacteria blooms in a highland reservoir with changing nutrient status, Guizhou Province, China[J]. JOURNAL OF LIMNOLOGY,2018,77(2):232-246.
APA Long, Shengxing.,Hamilton, Paul B..,Yang, Yang.,Ma, Jianrong.,Chobet, Ondhoro C..,...&Chen, Jingan.(2018).Multi-year succession of cyanobacteria blooms in a highland reservoir with changing nutrient status, Guizhou Province, China.JOURNAL OF LIMNOLOGY,77(2),232-246.
MLA Long, Shengxing,et al."Multi-year succession of cyanobacteria blooms in a highland reservoir with changing nutrient status, Guizhou Province, China".JOURNAL OF LIMNOLOGY 77.2(2018):232-246.

入库方式： OAI收割

来源：重庆绿色智能技术研究院

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。