Effect of Nitrogen Sources on Growth Performance of Marine Microalgae Nannochloropsis Sp. and Chaetoceros Sp

Simple item page
dc.contributor.authorKondasinghe, K.P.R.S.
dc.date.accessioned2021-10-15T08:38:08Z
dc.date.available2021-10-15T08:38:08Z
dc.date.issued2014
dc.description.abstractNannochloropsis sp. and Chaetoceros sp. are marine micro alga immensely valuable for aquaculture and food industry as they are rich sources of essential fatty acids, pigments, amino acids and vitamins. Present study was conducted to identify the effect of nitrogen sources on their growth and nutrient content in the cells. For the study, F/2 culture media was used as media in control culture which contains NaNO3 as the source of nitrogen. The F/2 culture media was prepared by using KNO3 (9 g 11), CH4N2O (Urea) (27 g 1') and NH4C1 (47.3 g I-1) as the sources of nitrogen in the culture media. Algae cultures were prepared in triplicates for all treatments in Nannochloropsis sp. and two replicates were prepared for Chaetoceros sp. and cultivated under indoor condition, maintaining the 27 °C of constant temperature and 25ppt of salinity with a continuous aeration. The results of ten days culture revealed that there was no significant difference for cell density with the time for all treatments (Two-way ANOVA: p>0.05). For the Chaetoceros sp. there was significant difference with the treatments. However, significant difference was found for chlorophyll-a nitrate and nitrite content which are produced by both species. (p<0.05). The significantly highest chlorophyll-a and cell density recorded with lower nitrogen assimilation level in the F/2 culture media with urea than that of other culture media treated with potassium nitrate and ammonium chloride. The Urea can be recommended as a more effective source of nitrogen for F/2 culture media to obtain high chlorophyll-a for Nannochloropsis sp. culture and to have higher cell density and chlorophyll-a content in Chaetoceros sp. This study provides baseline information about the appropriate nitrogem,sources which can elevate the higher productivity of Nannochloropsis sp. and Chaetoceros sp. Keywords Nannochloropsis sp, Chaetoceros sp.,Nitrogen sources, Cell density, Marine micro algaeen_US
dc.identifier.otherUWU/AQT/14/0045
dc.identifier.urihttp://www.erepo.lib.uwu.ac.lk/bitstream/handle/123456789/7305/AQT%2014%20045-19022021101803.pdf?sequence=1&isAllowed=y
dc.language.isoenen_US
dc.publisherUva Wellassa University of Sri Lankaen_US
dc.relation.ispartofseries;UWU/AQT/14/0045
dc.subjectAquatic Resources Technology Degree Programme ( AQT)en_US
dc.titleEffect of Nitrogen Sources on Growth Performance of Marine Microalgae Nannochloropsis Sp. and Chaetoceros Spen_US
dc.title.alternativeResearch Article – AQT 2014en_US
dc.typeThesisen_US
Files
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
AQT 14 045-19022021101803.pdf
Size:
2.64 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Aquatic Resources Technology Degree Programme ( AQT)