Climate change and phytoplankton

A study carried out between EFPU and Universidade da Regiao de Joinville (Brazil) researchers shows the different responses of a tropical phytoplankton community towards ultraviolet radiation (UVR) exposure and input of nutrients.

Mesocosmos en Brasil
Mesocosms to evaluate the effects of climate change in tropical communities of southern Brazil.

All organisms display different degree of sensitivity towards environmental changes. In this work the conditions as those expected in the future due to climate change were simulated, when aquatic organisms will be exposed to higher radiation levels and to higher nutrient concentrations.

The input of nutrients favored this community, reducing the negative impact of UVR on photosynthesis. Therefore antagonistic effects among the two studied variables, UVR and input of nutrients, were determined.

The article was published in Journal of Experimental Marine Biology and Ecology (click to go to publisher’s site).

Complete reference

Villafañe, V.E., G.S. Erzinger, S.M. Strauch & E.W. Helbling. 2014. Photochemical activity of PSII of tropical phytoplankton communities of Southern Brazil exposed to solar radiation and nutrient addition. Journal of Experimental Marine Biology and Ecology, 459: 199- 207.


This work was supported by Fundaçao de Apoio à Pesquisa Científica e Tecnológica do Estado de Santa Catarina (FAPESC), National Counsel of Technological and Scientific Development (CNPq), Consejo Nacional de Investigaciones Científicas y Técnicas—CONICET, Universidade da Região de Joinville and Fundación Playa Unión.