Eisner, L. B. Oregon State University, leisner@oce.orst.edu
Twardowski, M. B. Oregon State University, mtwardo@oce.orst.edu
Cowles, T. J. Oregon State University, tjc@oce.orst.edu

 
PHYTOPLANKTON PIGMENT COMPOSITION IN RELATION TO FINESCALE OPTICAL PROPERTIES IN EAST SOUND, ORCAS ISLAND, WASHINGTON
 
Samples for phytoplankton pigment analysis using High Performance Liquid Chromatography (HPLC) were collected over a two week period during June 1998 in East Sound, Orcas Island, Washington. This sampling effort was part of a larger program (ONR sponsored Thin Layers program) investigating thin layer characteristics and processes (formation, dissipation) in an estuarine environment. Phytoplankton pigments were sampled within and outside of observed thin layers (areas of high particulate concentration) to determine pigment characteristics associated with these features. The vertical and temporal distributions of pigments are compared to CTD data and finescale optical profiles of spectral particulate absorption and fluorescence. Variations in pigment concentrations are used to estimate changes in phytoplankton species group composition over time and space. The ability to use in situ absorption and fluorescence measurements to infer pigment composition on small scales is also assessed.
 
Day: Tuesday, Feb. 2
Time: Poster
Location: Sweeney Center
 
Code: SS05TU1318S