Phytoplankton community structure

Increases in nitrate + nitrite have been well documented in the Great Lakes (19). Relative increases over the past twenty years have been between 30 and 200% with the highest increases in the most populated and agriculturally productive basins of Lakes Ontario and Erie (29). Currently no adverse impacts due to this increase have been observed and concentrations are well below the 10 mg.L maximum acceptable drinking water concentration for the protection of human health. Changing N P ratios, however, can impact phytoplankton community structure (30). 

Montesanto B, Tryfon E (1999) Phytoplankton community structure in the drainage network of a Mediterranean river system (Aliakmon, Greece). Int Rev Hydrobiol 84 451 —468... 

Chlorophylls and other pigments have been frequently investigated in marine samples. As the amount of chlorophyll may be used as a marker for phytoplankton production its determination is of paramount importance in sea research [274], HPLC data have been used for the study of phytoplankton community structure [275] and for the indentification of phytoplankton groups [276], Earlier advances in HPLC pigment analysis have been reviewed [277],... 

HPLC has been further employed for the mesurement of the spatial and temporal variabilities of phytoplankton community structure [287], for the investigation of the seasonal change of algal pigments [288], for the study of the seasonal and interannual change of phytoplankton communities [289] and for the assessment of the tidal and diurnal periodicities of pigment profiles [290],... 

R. Riegman and G.W. Kraay, Phytoplankton community structure derived from HPLC analysis of pigments in the Faroe-Shetland Channel during summer, 1999 the distribution of taxonomic groups in relation to physical/chemical condition in the photic zone. J. Plankton Res. 23 (2001) 191-206. 

Y. Obayashi, E. Tanoue, K. Suzuki, N. Handa, Y. Nojiri and C.S. Wong, Spatial and temporal variabilities of phytoplankton community structure in the Northern North Pacific as determined by phytoplankton pigments. Deep Sea Res. Part I Oceanogr. Res. Papers 48 (2001) 439 169. 

Berard A, Pelte T, Druart J-C. 1999. Seasonal variations in the sensitivity of Lake Geneva phytoplankton community structure to atrazine. Archiv fuer Hydrobiologie 145 277-295. 

Kilham, S.S., and Kilham, P. (1984) The importance of resource supply rates in determining phytoplankton community structure. In Trophic Interactions Within Aquatic Systems (Meyers, D.G, and Strickler, J.R., eds.), pp. 7-28, Westview Press, Boulder, CO. 

Pinckney, J.L., Paerl, H.W., Harrington, M.B., and Howe, K.E. (1998) Annual cycles of phytoplankton community-structure and bloom dynamics in the Neuse River estuary, North Carolina. Mar. Biol. 131, 371-381. 

Arrigo KR, Robinson DEI, Worthen DL, Dunbar RB, Di-Tullio GR, van Woert M, Lizotte MP (1999) Phytoplankton community structure and the drawdown of nutrients and C02 in the Southern Ocean. Science 283 365-367... 

Phaeocystis sp. (Prymnesiophyceae). II. Pigment Composition. J Phycol 34 496-503 Wells ML (1999), Manipulating iron availability in nearshore waters. Limnol Oceanogr 44 1002-1008 Wells ML, Price NM, Bruland KW (1994) Iron limitation and the cyanobacterium Synechococcus in equatorial Pacific waters. Limnol Oceanogr 39 1481-1486 Worthen DL, Arrigo KR (2003) A coupled ocean-ecosystem model of the Ross Sea. Part 1 Interannual variability of primary production and phytoplankton community structure. In DiTullio GR, Dunbar RB (eds) Biogeochemistry of the Ross Sea. Antarct Res Ser 78 93-105... 

Fe has been shown to play a key role in limiting phytoplankton growth and carbon uptake, and in determining the phytoplankton community structure in the Southern Ocean. Therefore, the carbon transfer efficiency to deep water by the biological carbon... 

Phytoplankton community structure and the drawdown of nutrients and C02 in the Southern Ocean. Science 283 365-367... 

Mengesha, S., Dehairs, F., Fiala, M., Elskens, M., and Goeyens, L. (1998). Seasonal variation of phytoplankton community structure and nitrogen uptake regime in the Indian Sector of the Southern Ocean. Polar Biol. 20, 259-272. 

J. McGowan, T. Hayward, E. Venrick and others, CLIMAX time-series Pioneering research on rates and regulation of primary production, including nutrient limitation studies of environmental heterogeneity and phytoplankton community structure dynamics of deep chlorophyll maximum layer studies of N2 fixation DON distributions and dynamics studies of primary N02 maximum layer analytical methods development and improvement centered at, or near, the CLIMAX site (28°N, 155°W)... 

Hare, C., DiTuUio, G., Trick, C., Wilhelm, S., Bruland, K., Rue, E., and Hutchins, D. (2005). Phytoplankton community structure changes foUowing simulated iron inputs in the Peru upweUing region. Aquat. Microb. Ecol. 38, 269—282. 

Inputs of agricultural fertilizers are having more than one impact on the biological pump. A shift in the NO PO4 Si(OH)4 of natural waters is causing a shift in the phytoplankton community structure that should impact the biological cycling of carbon in aquatic systems (Conley et al, 1993). Additionally, a recent shift in the C N P ratios of deeper waters and an increase in export production have been observed for the northern hemisphere oceans (Pahlow and Riebesell, 2000). 

Stamm HH, Kohlschiitter HW (1965) Sorption of phosphate ions on iron (H) hydroxide. J Inorg Nucl Chem 27(9) 2103-2108 Suess E (1980) Particulate organic carbon flux in the oceans-surface productivity and oxygen utilization. Nature 288 260-263 Sun J, Liu D, Yang S, Guo J, Qian S (2002) The prehminary study on phytoplankton community structure in the central Bohai Sea and the Bohai Strait. Oceanol Liminol Sin 33(5) 461-471... 

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