Phytoplankton assemblage

Sabater S, Artigas J, Duran C, Pardos M, Romani AM, Tomes E, YUa I (2008) Longitudinal development of chlorophyll and phytoplankton assemblages in a regulated large river (the Ebro River). Sci Total Environ 404 196-206... 

Few studies have addressed the dynamics of suspended and attached primary producers in the Ebro basin. Previous data on phytoplankton assemblages are available only for the Ebro delta [6], and for phytoplankton occurring in the lower course of the river [7, 8]. However, there is no information about other... 

Differences in chlorophyll concentrations between present and past records in the lower part of the Ebro do not correspond with significant changes in the distribution of phytoplankton assemblages. The general trends in the distribution of phytoplankton communities appear to be consistent with those reported in previous surveys, at least in the lower part of the river. Centric diatoms such as Aulacoseira granulata, Cyclotella sp. and Stephanodiscus sp. were dominant in autumn, spring, and early summer 1989-1990, while Scenedesmus sp., Coelastrum sp., and Pediastrum sp. were most abundant in the summer of that period [7]. 

Left panels Monthly mean maps of the phytoplankton assemblages for (a) January, (b) April,... 

American oyster, Crassostrea virginica 0.1 (controls) vs. 2 adults exposed for 14 days in large enclosures with natural phytoplankton assemblages... 

Villafane, V. E., Helbling, E. W., Holm-Hansen, O., and Chalker, B. E., Acclimitization of Antarctic natural phytoplankton assemblages when exposed to solar ultraviolet radiation, J. Plankton Res., 17, 2295, 1995. 

The increase in the salinity of the sea caused essential changes in the structure of phytoplankton assemblages. Significant changes were also noted in the phytoplankton productivity, which is clearly manifested in the distribution of phytoplankton and in the general a decrease in its biomass [20]. 

Blackwell Science, Malden, MA Fernandez E, Serret P, Demadariaga I, Harbour DS, Davies AG (1992) Photosynthetic carbon metabolism and biochemical composition of spring phytoplankton assemblages enclosed in microcosms the diatom Phaeocystis sp. succession. Mar Ecol Prog Ser 90 89-102 Fogg GE (1983) The ecological significance of extracellular products of phytoplankton photosynthesis. Bot Mar 26 3-14... 

Lawson, D., Hurd, D. C. and Pankratz, H. S., Silica dissolution rates of decomposing phytoplankton assemblages at various temperatures. 

Chang, P. H., Vincent, W. F., and Woods, P. H. (1992). Nitrogen-utilization by size-fractionated phytoplankton assemblages associated with an upweUing event off Westland, New-Zealand. New Zeal.J. Mar. Fresh. Res. 26, 287-301. 

TorteU, P., DiTuUio, G., Sigman, D., and Morel, F. (2002). CO2 effects on taxomonic composition and nutrient utilization in an Equatorial Pacific phytoplankton assemblage. Mar. Ecol. Prog. Ser. 236, 37-43. 

Varela, D. E., and Harrison, P.J. (1999b). Seasonal variability in nitrogenous nutrition of phytoplankton assemblages in the northeastern subarctic Pacific Ocean. Deep Sea Res. II46, 2505—2538. 

Table 12.1 Summary of half-saturation constants determined for natural phytoplankton assemblages from polar regions...

Estrada, M., and Blasco, D. (1985). Phytoplankton assemblages in coastal upwelling areas. In International Symposium on the Upwelling Areas off Western Africa. (Bas, C., Margalef, R., and Rubies, P., eds.). Institute Pesqueras, Barcelona, pp. 379—402. 

Lassiter, A. M. (2003). Inter and Intra-annual Patterns of Phytoplankton Assemblages During Upwelling Events off the Coast of Northern California. MA Thesis, San Francisco State University, pp. 140. 

Lassiter, A. M., Wilkerson, F. P., Dugdale, R. C., and Hogue, V. E. (2006). Phytoplankton assemblages in the CoOP-WEST coastal upwelling area. Deep Sea Res. II53, 3063—3077. 

Of particular interest in relation to Si N interactions and diatoms is the relatively recent finding that iron provides a strong regulating influence on the species composition of phytoplankton assemblages, as well as on the elemental ratios of diatoms. Fe and Si supply appear to be particularly important in several large areas where high concentrations of other macro nutrients (N, P) are present in surface waters. These HNLC areas (Minas et al, 1986) are characterized by low phytoplankton biomass... 

Cullen J. T., Chase Z., Coale K. H., Fitzwater S. E., and Sherrell R. M. (2003) Effect of iron limitation on the cadmium to phosphorus ratio on natural phytoplankton assemblages from the Southern Ocean. Limnol. Oceanogr. 48, 1079-1087. 

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