Analysis of diel variability in chlorophyll fluorescence

摘要

Examples of the diel variability in chlorophyll and beam attenuation are presented using data from moored in situ fluorometers and transmissometers, and from profiles of the beam attenuation coefficient and fluorescence. The data are discussed in terms of the three primary processes thought to influence the diel variability in chlorophyll: (1) fluorescence yield per unit chlorophyll a, (2) chlorophyll a changes per cell (or, carbon), and (3) changes in phytoplankton carbon (growth).