Spectroradiometric Monitoring of Nannochloropsis salina Growth

► Reflectance of an algal culture is measured with a dual-channel spectroradiometer. ► Reflectance model developed with pigment-specific absorption and fluorescence. ► Matching the model to the measurements yields absorption, scatter, and fluorescence. ► Reflectance-derived parameters are consistent with extracted-sample measurements. ► Enables real-time measurement of chlorophyll concentration and algal growth.