Articles, Books and Chapters





Marcoval, M..A., V.E. Villafañe & E.W. Helbling. 2007. Interactive effects of ultraviolet radiation and nutrient addition on growth and photosynthesis performance of four species of marine phytoplankton. Journal of Photochemistry and Photobiology. B: Biology, 89: 78-87. Science Citation Index ISI 1.919

Gao, K., G. Li, E.W. Helbling & V.E. Villafañe. 2007. Variability of UVR effects on photosynthesis of summer phytoplankton assemblages from a tropical coastal area of the South China Sea. Photochemistry and Photobiology, 83: 802-809. Science Citation Index ISI 2. 172

Häder, D.-P., M. Lebert, M. Schuster, L. del Ciampo, E.W. Helbling & R. McKenzie. 2007. ELDONET – Ten years of monitoring solar radiation on five continents. Photochemistry and Photobiology, 83: 1348-1357. Science Citation Index ISI 2. 172

Gao, K., Y. Wu, G. Li, H. Wu, V.E. Villafañe, & E.W. Helbling. 2007. Solar UV-radiation drives CO2-fixation in marine phytoplankton: A double-edged sword. Plant Physiology, 144: 54-59. Science Citation Index ISI 6.367

Gonçalves, R.J., E.S. Barbieri, V.E. Villafañe & E.W. Helbling. 2007.  Motility of Daphnia spinulata as affected by solar radiation throughout a year cycle in mid latitudes of Patagonia. Photochemistry and Photobiology, 83: 824-832. Science Citation Index ISI 2. 172

Villafañe,V.E., K. Gao, P. Li, G. Li & E.W. Helbling. 2007. Vertical mixing within the epilimnion modulates UVR-induced photoinhibition in tropical phytoplankton from Southern China. Freshwater Biology, 52: 1260-1270. Science Citation Index ISI 2.65

Jiang H., K. Gao & E.W. Helbling. 2007. Effects of solar UV radiation on germination of conchospores and morphogenesis of sporelings in Porphyra haitanensis (Rhodophyta). Marine Biology, 151: 1751-1759. Science Citation Index ISI 2.215

Richter, P.R., D.-P. Häder, R.J. Gonçalves, M.A. Marcoval, V.E. Villafañe & E.W. Helbling. 2007. Vertical migration and motility responses in three marine phytoplankton species exposed to solar radiation. Photochemistry and Photobiology, 83: 810-817. Science Citation Index ISI 2.172  

Hernández, K.L., R.A. Quiñones, G. Daneri, M.E. Farias & E.W. Helbling. 2007. Solar UV radiation modulates daily production and DNA damage of marine bacterioplankton from a productive upwelling zone (36°S), Chile. Journal of Experimental Marine Biology and Ecology, 343: 82-95. Science Citation Index ISI 1.75

Richter, P., E.W. Helbling, C. Streb & D.-P. Häder. 2007. PAR and UV effects on vertical migration and photosynthesis in Euglena gracilisPhotochemistry and Photobiology, 83: 818-823. Science Citation Index ISI 2. 172 

Gao K., W. Guan & E.W. Helbling. 2007. Effects of solar ultraviolet radiation on photosynthesis of the marine red tide alga Heterosigma akashiwo (Raphidophyceae). Journal of Photochemistry and Photobiology. B: Biology, 86 (2):140-148. Science Citation Index ISI 1.919

Neale, P. J., E. W. Helbling & T. A. Day (eds). 2007. UV Effects in Aquatic and Terrestrial Ecosystems.  Symposium in Print. Photochemistry and Photobiology, 83: 775-870. Science Citation Index ISI 2.147.