Edna Graneli

Professor emerita


I am Professor Emeritus at the Linnaeus University, Kalmar, Sweden, and Guest Professor at the University of Lund, Sweden. My research field is phytoplankton ecology, mainly in marine and brackish-water systems.

Within phytoplankton ecology I have especially devoted myself to the ecology and ecophysiology of harmful algae (HA) and the blooms they can form (HAB´s). This research involves HA interactions with nutrients, trace metals and DOM (dissolved organic matter), bacteria, other phytoplankton species, zooplankton and top predators, such as fish and jelly-fish. HAB’s seem to occur everywhere, and with increasing frequency, probably due to anthropogenic changes in coastal waters, e g eutrophication and climate change. My contributions to the study of phytoplankton-nutrient interactions in the Baltic Sea had a crucial role in restructuring sewage treatment policies in Sweden, emphasizing the important role of nitrogen in addition to phosphorus.

Other aspects of my research has been the question of why some species of HA are able to produce toxic and allelopathic compounds, and what biotic and abiotic factors that regulate the level of toxicity. I have been especially interested in mixotrophy, the ability of many HAB-forming species to both perform photosynthesis and ingest particles, act as predators on other algae or even on zooplankton.

In my research I have used state of the art chemical analyses, light microscopy, flow cytometry and DNA-techniques. I have combined field studies with laboratory (e.g. bioassays) and especially mesocosm experiments. I have worked at the top level in several international organizations dealing with HAB´s, bringing together persons of diverse nationalities and backgrounds, e.g. from developing counties. My research has thus been very international. I have collaborated with senior scientist and had PhD-students and post-docs from many countries in the EU, North and South America (especially Brazil), as well as Asia (e g Korea, Japan and China). I was the main editor of the 2006 Springer book “The Ecology of Harmful Algae,” from which until August 2013 more than 24 000 chapters have been downloaded.

Recent research outputs

Veronica M. Lundgren, Patricia M. Glibert, Edna Granéli, Nayani K. Vidyarathna, Emanuela Fiori, Linjian Ou, Kevin J. Flynn, Aditee Mitra, Diane K. Stoecker & Per J. Hansen, 2016 May 1, In: Harmful Algae. 55, p. 1-12 12 p.

Research output: Contribution to journalArticle

Aditee Mitra, Kevin J Flynn, Urban Tillmann, John A Raven, David Caron, Diane K Stoecker, Fabrice Not, Per J Hansen, Gustaaf Hallegraeff, Robert Sanders, Susanne Wilken, George McManus, Mathew Johnson, Paraskevi Pitta, Selina Våge, Terje Berge, Albert Calbet, Frede Thingstad, Hae Jin Jeong, JoAnn Burkholder & 3 others, Patricia M Glibert, Edna Graneli & Veronica Lundgren, 2016, In: Protist. 167, 2, p. 106-120

Research output: Contribution to journalArticle

Eva Perez Blanco, Chatarina Karlsson, Jan Pallon, Takeshi Yasumoto & Edna Graneli, 2015, In: Aquatic Microbial Ecology. 75, 3, p. 259-269

Research output: Contribution to journalArticle

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