Potential production and loss rates of picocyanobacteria in tropical coastal waters
In this study, monthly samplings were conducted at Port Klang and Port Dickson over a two-year period to measure potential production rate and loss rates of picocyanobacteria using the Landry Hassett dilution technique. Twelve sets of two-factorial experiment were also carried out to further investi...
| Main Authors: | , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2012
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| Online Access: | http://eprints.um.edu.my/15061/1/0001.pdf |
| _version_ | 1825720627288342528 |
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| author | Pei, L.H. Choon, W.L. |
| author_facet | Pei, L.H. Choon, W.L. |
| author_sort | Pei, L.H. |
| collection | UM |
| description | In this study, monthly samplings were conducted at Port Klang and Port Dickson over a two-year period to measure potential production rate and loss rates of picocyanobacteria using the Landry Hassett dilution technique. Twelve sets of two-factorial experiment were also carried out to further investigate the effect of light and nutrient on picocyanobacteria production rate. Significantly lower abundance was measured at Port Klang (2.80 ± .172 x 104 cell rnl") compared to Port Dickson (13.2 ± 4.68 x 104 cell ml') (Student's z-test: I =
9.80, df= 40, P < 0.001). Potential production and loss rates observed at Port Klang (3.77 - 70.4 and 1.88 - 75.60 x 102 cell ml' hOi)were also much lower than Port Dickson (2.32 - 15.90 and 1.06 - 18.4 x 103cell ml" hOi)(Student's 1-test: 1= 9.63, df= 37, P < 0.001; 1= 7.49, df= 43, P < 0.001). In the twofactorial experiment, only nutrient (F = 7.00, P < 0.05) showed a significant
effect on production rate. However, the interaction between light and nutrient also have a significant effect on production rate (F = 5.80, P > 0.05). These results suggest that in tropical coastal waters, nutrient played a more important role in affecting the picocyanobacteria production rate compared to light. |
| first_indexed | 2024-03-06T05:37:59Z |
| format | Conference or Workshop Item |
| id | um.eprints-15061 |
| institution | Universiti Malaya |
| language | English |
| last_indexed | 2024-03-06T05:37:59Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | um.eprints-150612015-12-15T06:32:23Z http://eprints.um.edu.my/15061/ Potential production and loss rates of picocyanobacteria in tropical coastal waters Pei, L.H. Choon, W.L. Q Science (General) QH Natural history QR Microbiology In this study, monthly samplings were conducted at Port Klang and Port Dickson over a two-year period to measure potential production rate and loss rates of picocyanobacteria using the Landry Hassett dilution technique. Twelve sets of two-factorial experiment were also carried out to further investigate the effect of light and nutrient on picocyanobacteria production rate. Significantly lower abundance was measured at Port Klang (2.80 ± .172 x 104 cell rnl") compared to Port Dickson (13.2 ± 4.68 x 104 cell ml') (Student's z-test: I = 9.80, df= 40, P < 0.001). Potential production and loss rates observed at Port Klang (3.77 - 70.4 and 1.88 - 75.60 x 102 cell ml' hOi)were also much lower than Port Dickson (2.32 - 15.90 and 1.06 - 18.4 x 103cell ml" hOi)(Student's 1-test: 1= 9.63, df= 37, P < 0.001; 1= 7.49, df= 43, P < 0.001). In the twofactorial experiment, only nutrient (F = 7.00, P < 0.05) showed a significant effect on production rate. However, the interaction between light and nutrient also have a significant effect on production rate (F = 5.80, P > 0.05). These results suggest that in tropical coastal waters, nutrient played a more important role in affecting the picocyanobacteria production rate compared to light. 2012-10 Conference or Workshop Item PeerReviewed application/pdf en http://eprints.um.edu.my/15061/1/0001.pdf Pei, L.H. and Choon, W.L. (2012) Potential production and loss rates of picocyanobacteria in tropical coastal waters. In: 2nd Conference for Regional Cooperation in Ocean and Earth Science Research in the South China Sea, 21-24 October 2012, University of Malaya, Kuala Lumpur, Malaysia. |
| spellingShingle | Q Science (General) QH Natural history QR Microbiology Pei, L.H. Choon, W.L. Potential production and loss rates of picocyanobacteria in tropical coastal waters |
| title | Potential production and loss rates of picocyanobacteria in tropical coastal waters |
| title_full | Potential production and loss rates of picocyanobacteria in tropical coastal waters |
| title_fullStr | Potential production and loss rates of picocyanobacteria in tropical coastal waters |
| title_full_unstemmed | Potential production and loss rates of picocyanobacteria in tropical coastal waters |
| title_short | Potential production and loss rates of picocyanobacteria in tropical coastal waters |
| title_sort | potential production and loss rates of picocyanobacteria in tropical coastal waters |
| topic | Q Science (General) QH Natural history QR Microbiology |
| url | http://eprints.um.edu.my/15061/1/0001.pdf |
| work_keys_str_mv | AT peilh potentialproductionandlossratesofpicocyanobacteriaintropicalcoastalwaters AT choonwl potentialproductionandlossratesofpicocyanobacteriaintropicalcoastalwaters |