Spatial and temporal distribution of cyanobacteria in Batticaloa Lagoon  

作　　者：Jalaldeen Mohamed Harris Periyathamby Vinobaba Ranil Kavindra Asela Kularatne Champika Ellawala Kankanamge 

机构地区：[1]Department of Zoology,Eastern University,Vantharumoolai,Chenkaladi,Sri Lanka [2]MAS Capital(Private)Limited,10th Floor,Aitken Spence Tower If,315,Vauxhall Street,Colombo 2,Sri Lanka [3]MAS Active Trading(Put)Limited,No.231,D.M.Colombage Mawatha,Natuala,Sri Lanka [4]Department of Civil and Environmental Engineering,Faculty of Engineering,University of Ruhuna,Hapugala,Galle,Sri Lanka

出　　处：《Journal of Environmental Sciences》2016年第9期211-218,共8页环境科学学报（英文版）

基　　金：supported by the National Science Foundation of Sri Lanka(RG/2011/ES/04)

摘　　要：The necessity to understand the relationship between cyanobacterial species abundance and water quality variations in coastal lagoons is crucial to develop strategies to prevent further cyanobacterial proliferation.This paper evaluates the relationship between water quality variations on the distribution of cyanobacteria during a 12-month period in Batticaloa Lagoon（Sri Lanka） using Redundancy analysis and Pearson correlations.Drastic variations in p H,temperature,salinity,dissolved oxygen（DO） and total phosphorus（TP）levels were reported,but not turbidity and NO3-.This brackish waterbody is hypereutrophic（TP levels 〉 0.1 mg/L）.The cyanobacterial community contained 13 genera and 22 species.NO3-,TP and turbidity levels positively influenced cyanobacterial abundance during all seasons indicating that nutrient（largely phosphorus） and sediment entry control is highly crucial along with periodic monitoring of cyanobacterial growth.The necessity to understand the relationship between cyanobacterial species abundance and water quality variations in coastal lagoons is crucial to develop strategies to prevent further cyanobacterial proliferation.This paper evaluates the relationship between water quality variations on the distribution of cyanobacteria during a 12-month period in Batticaloa Lagoon（Sri Lanka） using Redundancy analysis and Pearson correlations.Drastic variations in p H,temperature,salinity,dissolved oxygen（DO） and total phosphorus（TP）levels were reported,but not turbidity and NO3-.This brackish waterbody is hypereutrophic（TP levels 〉 0.1 mg/L）.The cyanobacterial community contained 13 genera and 22 species.NO3-,TP and turbidity levels positively influenced cyanobacterial abundance during all seasons indicating that nutrient（largely phosphorus） and sediment entry control is highly crucial along with periodic monitoring of cyanobacterial growth.

关 键 词：Batticaloa Lagoon Cyanobacteria Nitrates（NO_3^-） Turbidity Total phosphorous（TP） Water quality 

分 类 号：X52[环境科学与工程—环境工程]