Fish that undergo ontogenetic migrations between habitats often encounter new light environments that require changes in the spectral sensitivity of the retina. For many fish, sensitivity of the retina changes to match the environmental spectrum, but the timing of retinal change relative to habitat
P-3 The Instrumentation of an Improved Microspectrophotometric Image Analysis System for in situ Kinetic Determination of Dehydrogenase Activity in Cells and Its Application