OJMS  Vol.4 No.2 , April 2014
Cell Size Dependent Responses of Phytoplankton Assemblages to Nitrate and Phosphate Additions in Surface Waters of the Northern South China Sea
ABSTRACT

Bioavailability of nitrogen (N) and phosphorus (P) is known to affect marine phytoplankton physiology, thus influencing their primary productivity; and it’s of general interest to see how the N or/and P additions affect the differently cell-sized phytoplankton assemblages. Data from the northern South China Sea showed that P addition increased up to 6 times of total chl a content within 24 h in the estuarine water; and N+P addition increased more than 20 times of chl a within 144 h in the pelagic water. The P addition powered 18.0% and 149% increase in the carbon fixation of larger (>3 μm) and smaller (<3 μm) cell assemblies from the estuarine water, respectively; while the limited effects were observed between them in the pelagic water. Additions of N and P interactively increased the carbon fixation of both cell-sized assemblies in the pelagic water, but only small cell-sized fraction in the estuarine water. Moreover, the estuarine phytoplankton cells appeared to respond faster to the nutrient additions than the pelagic ones, and the smaller cells respond to a greater extent than their larger counterparts in the estuarine water but not in the pelagic water.


Cite this paper
Yi, R. , Tan, Y. , Wang, S. , Shen, P. , Ke, Z. , Huang, L. , Song, X. and Li, G. (2014) Cell Size Dependent Responses of Phytoplankton Assemblages to Nitrate and Phosphate Additions in Surface Waters of the Northern South China Sea. Open Journal of Marine Science, 4, 61-67. doi: 10.4236/ojms.2014.42008.
References
[1]   Li, G., Gao, K. and Gao, G. (2011) Differential Impacts of Solar UV Radiation on Photosynthetic Carbon Fixation From the Coastal to Offshore Surface Waters in the South China Sea. Photochemistry and Photobiology, 87, 329-334.
http://dx.doi.org/10.1111/j.1751-1097.2010.00862.x

[2]   Lin, I.I., Liu, W.T., Wu, C.C., Wong, G.T.F., Hu, C., Chen, Z., Liang, W.D., Yang, Y. and Liu, K.K. (2003) New Evidence for Enhanced Ocean Primary Production Triggered by Tropical Cyclone. Geophysical Research Letter, 30, 1718.
http://dx.doi.org/10.1029/2003GL017141

[3]   Ning, X., Chai, F., Xue, H.F., Cai, Y., Liu, C. and Shi, J. (2004) Physical Biological Oceanographic Coupling Influencing Phytoplankton and Primary Production in the South China Sea. Journal of Geophysical Research, 109, C10005.
http://dx.doi.org/10.1029/2004JC002365

[4]   Zheng, G. and Tang, D. (2007) Offshore and Nearshore Chlorophyll Increases Induced by Typhoon Winds and Subsequent Terrestrial Rainwater Runoff. Marine Ecology Progress Series, 333, 61-74.
http://dx.doi.org/10.3354/meps333061

[5]   Finkel, Z.V., Beardall, J., Flynn, K.J., Quigg, A., Rees, T.A.V. and Raven, J.A. (2010) Phytoplankton in a Changing World: Cell Cize and Elemental Stoichiometry. Journal of Plankton Research, 32, 119-137.
http://dx.doi.org/10.1093/plankt/fbp098

[6]   Raven, J.A. (1998) Small Is Beautiful: The Picophytoplankton. Functional Ecology, 12, 503-513.
http://dx.doi.org/10.1046/j.1365-2435.1998.00233.x

[7]   Chang, F.H., Zeldis, J., Gall, M. and Hall, J. (2003) Seasonal and Spatial Variation of Phytoplankton Assemblages, Biomass and Cell Size from Spring to Summer across the North-Eastern New Zealand Continental Shelf. Journal of Plankton Research, 25, 737-758. http://dx.doi.org/10.1093/plankt/25.7.737

[8]   Li, W.K.W. (2002) Macroecological Patterns of Phytoplankton in the Northwestern North Atlantic Ocean. Nature, 419, 154-157. http://dx.doi.org/10.1038/nature00994

[9]   Raven, J.A. and Kübler, J.E. (2002) New Light on the Scaling of Metabolic Rate with the Size of Algae. Journal of Phycology, 38, 11-16. http://dx.doi.org/10.1046/j.1529-8817.2002.01125.x

[10]   Mei, Z., Finkel, Z.V. and Irwin, A.J. (2011) Phytoplankton Growth Allometry and Size-dependent C:N Stoichiometry Revealed by Avariable Quota Model. Marine Ecology Progress Series, 434, 29-43.
http://dx.doi.org/10.3354/meps09149

[11]   Li, G. and Gao, K. (2013) Cell Size-Dependent Effects of Solar UV on Primary Production in Coastal Waters of the South China Sea. Estuaries and Coasts, 36, 728-736. http://dx.doi.org/10.1007/s12237-013-9591-6

[12]   Li, G., Huang, L., Liu, H., Ke, Z., Lin, Q., Ni, G., Yin, J., Li, K., Song, X., Shen, P. and Tan, Y. (2012) Latitudinal Variability (6°S-20°N) of Early-Summer Phytoplankton Species Compositions and Size-Fractioned Productivity from Java Sea to South China Sea. Marine Biology Research, 8, 163-171. http://dx.doi.org/10.1080/17451000.2011.615323

[13]   Helbling, E.W., Buma, A.G.J., De Boer, M.K. and Villafane, V.E. (2001) In Situ Impact of Solar Ultraviolet Radiation on Photosynthesis and DNA in Temperate Marine Phytoplankton. Marine Ecology Progress Series, 211, 43-49.
http://dx.doi.org/10.3354/meps211043

[14]   Laurion, I. and Vincent, W.F. (1998) Cell Size versus Taxonomic Composition as Determinants of UV-Sensitivity in Natural Phytoplankton Communities. Limnology and Oceanography, 43, 1774-1779.

[15]   Knap, A., Michaels, A., Close, A., Ducklow, H. and Dickson, A. (1996) Protocols for the Joint Global Ocean Flux Study (JGOFS) Core Measurements. JGOFS Report No. 19, Reprint of the IOC Manuals and Guides No. 29, UNESCO, Paris, 43-90.

[16]   Parsons, T.R., Maita, Y. and Lalli, C.M. (1984) A Manual of Chemical and Biological Methods for Seawater Analysis. Pergamon Press, Toronto, 1-173.

[17]   Kirkwood, D.S., Aminot, A. and Carlberg, S.R. (1996) The 1994 QUASIMEME Laboratory Performance Study: Nutrients in Seawater and Standard Solutions. Marine Pollution Bulletin, 32, 640-645.
http://dx.doi.org/10.1016/0025-326X(96)00076-8

[18]   Yin, K., Qian, P., Wu, M.C.S., Chen, J., Huang, L., Song, X. and Jian, W. (2001) Shift from P to N Limitation of Phytoplankton Biomass across the Pearl River Estuarine Plume during Summer. Marine Ecology Progress Series, 221, 17-28. http://dx.doi.org/10.3354/meps221017

[19]   Chen, C.T.A., Wang, S.L., Wang, B.J. and Pai, S.C. (2001) Nutrient Budgets for the South China Sea Basin. Marine Chemistry, 75, 281-300. http://dx.doi.org/10.1016/S0304-4203(01)00041-X

[20]   Redfield, A. (1958) The Biological Control of Chemical Factors in the Environment. American Scientist, 46, 205-221.

[21]   Maranón, E., Cermeno, P., López-Sandoval, D.C., Rodríguez-Ramos, T., Sobrino, C., Huete-Ortega, M., Blanco, J.M. and Rodríguez, J. (2013) Unimodal Size Scaling of Phytoplankton Growth and the Size Dependence of Nutrient Uptake and Use. Ecology Letters, 16, 371-379. http://dx.doi.org/10.1111/ele.12052

[22]   Li, G., Wu, Y. and Gao, K. (2009) Effects of Typhoon Kaemi on Coastal Phytoplankton Assemblages in the South China Sea, with Special Reference to the Effects of Solar UV Radiation. Journal of Geophysical Research, 114, G04029.

 
 
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