cysts were common throughout Section A; however, these specimens remain unidentified.
The number of chrysophyte
cysts in the sediment increased largely.
5A) show typical signs of early lake ontogeny in recently deglaciated terrain, namely the presence of clayey sediments with very low percent loss on ignition (LOI), low BSi concentrations, and generally low diatom and chrysophyte
lacustris, and Navicula oblonga, as well as chrysophyte
flora of neighboring Louisiana (Wee et al.
Phytoplankton were divided into four functional groups (chlorophytes, chrysophytes
, cyanobacteria, or diatoms) based on taxonomy (Table 1).
Given the wealth of ultrastructure data supporting a bacillariophyte or chrysophyte
ancestor of the Phaeophyceae (Clayton, 1989; O'Kelly, 1989), it is surprising that the xanthophyte (T.
Clearance rates and IR were evaluated as a function of cell concentration (50, 100, 200 and 300 cells/[micro]L) of the chrysophyte
In freshwater environments, biogenic silica (BSi; extracted using alkali digestion) derives from siliceous organisms, including diatoms, chrysophyte
cysts, and to a lesser extent, sponge spicules, and higher values indicate greater primary production (Conley and Schelske, 2001).
Coastal Texas has experienced a "brown tide" of the chrysophyte
Aureococcus for over five years, while an E.
Laboratory experiments with a mixotrophic chrysophyte
and obligately phagotrophic and phototrophic competitors.
This is with the addition of eight chlorophytes, one chrysophyte
(a macroscopic tubicolus diatom species), two phaeophytes and five rhodophytes (Table 1).
Growth of oyster larvae, Crassostrea virginica, of various sizes in different concentrations of the chrysophyte
, Isochrysis galbana.
In preliminary studies we determined that the chrysophyte
Isochrysis galbana produced the best scope for growth in the two scallop species (Velasco, in press).
Synechococcus-like cells comprised the picocyanobacteria, while Kephyrion was the most abundant chrysophyte
and Gymnodinium represented the dominant dinoflagellate.