Daylight measurements appropriate for photosynthetic studies in natural sea waters

Abstract

Different daylight measurements for in situ photosynthetic studies in different areas of the sea are discussed in detail. As a result of these discussions practical measuring techniques useful to marine biologists are presented. Field measurements and simple theoretical considerations demonstrate that measuring light quanta in the spectral range 350 to 700 nanometer in the sea as recommended by SCOR's Working Group 15 may lead to appreciable errors. © 1978 Conseil International pour l’Exploration de la Mer.