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Environmental influence on the euglenoid species diversity and their abundance in Museum Lake, Thiruvananthapuram, India
Ajayan, Anila P.1,4; Rijstenbil, Jan W.2; Kumar, K. G. Ajit3
Corresponding AuthorAjayan, Anila P.(anila.dehradun@gmail.com)
2020-01-10
Source PublicationCURRENT SCIENCE
ISSN0011-3891
Volume118Issue:1Pages:94-102
AbstractTwenty-three species belonging to the class Euglenophyceae were recorded from the Museum Lake, Thiruvananthapuram, India. A canonical correspondence analysis (CCA) between environmental variables and the dominant euglenophytes indicated interaction with certain physical and chemical parameters, in particular rainfall, electrical conductivity and phosphate versus their distribution in the Museum Lake. The dominant species were Euglena deses, Trachelomonas hispida and Trachelomonas volvocina. The CCA results indicate interaction between a variety of environmental parameters and species abundance. A closer examination suggests some external factor (e.g. evaporation) affecting water quality rather than the environment changing the algal biomass. With low rainfall the phosphate concentration increased from 1.5 to 6.9 mg P/l (likely as a result of anoxic conditions in the muddy bottom) and simultaneously nitrate was (partly) taken up by these dominant algae, as a result of which N : P ratios decreased from 4.5 to 0.7. The present study shows that the dominant euglenoid species co-occur in relatively hard water with high phosphorus concentration, and can be considered as useful bio-indicators in assessing the health and extent of deterioration of a lake ecosystem.
KeywordCanonical correspondence analysis environmental variables euglenoid species lake ecosystem
DOI10.18520/cs/v118/i1/94-102
Indexed BySCI ; SCI
Language英语
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000506227000024
WOS KeywordPHYTOPLANKTON COMMUNITIES ; ALGAE ; EUGLENOPHYTES ; EUGLENINEAE ; KNOWLEDGE ; SHALLOW
PublisherINDIAN ACAD SCIENCES
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/35485
Collection其他_期刊论文
Corresponding AuthorAjayan, Anila P.
Affiliation1.Mahatma Gandhi Coll, Dept Bot, Environm Biol Div, Thiruvananthapuram 695004, Kerala, India
2.AE3 Consultancy, Fuchsialaan 8, NL-4401 HV Yerseke, Netherlands
3.Kerala State Biodivers Board, Thiruvananthapuram 695011, Kerala, India
4.Chinese Acad Sci, Inst Hydrobiol, Freshwater Algal Ecol Div, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Ajayan, Anila P.,Rijstenbil, Jan W.,Kumar, K. G. Ajit. Environmental influence on the euglenoid species diversity and their abundance in Museum Lake, Thiruvananthapuram, India[J]. CURRENT SCIENCE,2020,118(1):94-102.
APA Ajayan, Anila P.,Rijstenbil, Jan W.,&Kumar, K. G. Ajit.(2020).Environmental influence on the euglenoid species diversity and their abundance in Museum Lake, Thiruvananthapuram, India.CURRENT SCIENCE,118(1),94-102.
MLA Ajayan, Anila P.,et al."Environmental influence on the euglenoid species diversity and their abundance in Museum Lake, Thiruvananthapuram, India".CURRENT SCIENCE 118.1(2020):94-102.
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