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Nutrient Enrichment Experiment to Establish Relationship between Chlorophyll and Phosphate


 
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1. Title Title of document Nutrient Enrichment Experiment to Establish Relationship between Chlorophyll and Phosphate
 
2. Creator Author's name, affiliation, country D. Poornima; Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai, Tamilnadu, India
 
2. Creator Author's name, affiliation, country K. Thennarasu; Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai, Tamilnadu, India
 
2. Creator Author's name, affiliation, country R. Ranith; Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai, Tamilnadu, India
 
2. Creator Author's name, affiliation, country R. Shanthi; Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai, Tamilnadu, India
 
2. Creator Author's name, affiliation, country R. K. Sarangi; Marine Biology Division, Marine, Earth and Planetary Sciences Group, Space Application Centre (ISRO), Ahmedabad, Gujarat, India
 
2. Creator Author's name, affiliation, country T. Thangaradjou; Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai, Tamilnadu, India
 
3. Subject Discipline(s)
 
3. Subject Keyword(s) Chlorophyll; Nitrate; N:P Ratio; Phosphate; Reactive Silicate
 
4. Description Abstract In-situ nutrient enrichment experiment was conducted to know the relationship between chlorophyll and phosphate so as to assess the significant role of phosphate in the phytoplankton growth. During the experiment period temperature (27.9-33.7°C), salinity (31-35 ‰) and pH (7.74-8.07) values were not shown dramatic changes as the experimental studies are conducted for the short period only. DO was found to show an oscillating trend (2.77-6.68 mgl-1) with phytoplankton population variations. Nutrient concentrations (NO3:1.05-12.63 µM, NO2:0.29-1.67 µM, PO4: 0.07-28.32 µM and SiO3:4.19-23.89 µM) showed maximum concentration at the first and second day of the experiment in enrichment tanks and it gradually decreased (PO4 and SiO3) on last day of the experiment period. The pronounced maximum chlorophyll concentration in tank 5 on 5th day corresponding with addition of highest concentration of phosphorus, clearly pointed out that phosphorus addition had influenced the plankton growth. Increased utilization of PO4 and support of SiO3 indicates diatoms prefer silicate and phosphate for growth than the nitrates. Nitrate enrichment in the tank in later part of the experiment indicates nitrogen cycling processes. Increased phytoplankton uptake and growth rate at tank 5 when compared to control, substantially proved the uptake of phosphate by phytoplankton under culture system.
 
5. Publisher Organizing agency, location
 
6. Contributor Sponsor(s)
 
7. Date (YYYY-MM-DD) 2014-12-01
 
8. Type Status & genre Peer-reviewed Article
 
8. Type Type
 
9. Format File format PDF
 
10. Identifier Uniform Resource Identifier http://scientific.cloud-journals.com/index.php/IJAESE/article/view/Sci-252
11. Source Journal/conference title; vol., no. (year) International Journal of Advanced Earth Science and Engineering; Volume 3 (Year 2014)
 
12. Language English=en en
 
14. Coverage Geo-spatial location, chronological period, research sample (gender, age, etc.)
 
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