Some Changes in the Optical Properties of Marine Phytoplankton in Response toHigh Light Intensity

摘要

In modeling the optical properties of and radiative transfer within ocean water,a common assumption is that the optical properties of the various dissolved and particulate constituents per unit concentration are constant. While this assumption is probably valid for non-living materials, it is frequently not the case with phytoplankton. Living cells are dynamic in their size, shape, and composition and respond readily (time scale of minutes to hours) to changes in the environment. Since each of these factors plays a role in determining the light scatter and absorption properties of the cell, the assignment of optical constants to phytoplankton cells, especially within Case I waters, may introduce significant errors in any theoretical treatment of radiative transfer and may result in erroneous interpretations of bulk optical measurements.