There are a number of photoreactions that occur in the environment: Hydro-gen peroxide
forms in freshwater and seawater; the free radical NO reaches detectable steady-state levels …

I. INTRODUCTION Investigations of photosynthetic processes in both aquatic ecosystems
and in the laboratory have sought to couple measurements of the rates of production with …

Near surface thermoclines form each day in the limnetic waters of Lake Titicaca (Peru‐
Bolivia) and thereby retain phytoplankton under extreme irradiances. This bright light …

The toxicity of anthracene, a common polycyclic aromatic hydrocarbon (PAH), has been
assessed in a variety of aquatic organisms under environmentally realistic conditions. In the …

Exposure to artificial UV wavelengths and the UV component of sunlight delays positive
phototaxis in the green alga Volvox aureus. Broad band wavelength filters were used to …

The unicellular, green alga Ankistrodesmus braunii is subject to a rapid photoinhibition of
photosynthesis when exposed to a photon fluence rate in excess of that required to saturate …