Catherine Legrand

Catherine Legrand

Department of Biology and Environmental Science Faculty of Health and Life Sciences
44033, Kalmar/Växjö
Save contact Download image

Professor in Marine Ecology. Research interest in plankton ecology, microbial food webs, allelopathy, mixotrophy.

Current research topics include:

  • Phytoplankton ecology and allelopathy
  • Microbial food web dynamics and the role of algal allelochemicals in interactions between marine phytoplankton and bacteria
  • Impact of cyanobacteria on coastal fishes
  • Use of marine resources
  • Linking higher education and labour market in the marine/maritime sector in the Baltic Sea


You can find me on Twitter @LegrandCath



Bachelor level:  Discovery of a Sustainable Baltic Sea (7.5 Hp), Linnæus University Summer Academy (LUSA), Professor/Examiner 

Master's level:  Aquatic Ecology (120 Hp), supervisor

Doctoral/Postgraduateecology/microbiology/environmental science, supervisor

MOOC - Marine Biotechnology: FOCUS Interreg South Baltic.


Catherine Legrand conducts research on marine phytoplankton - including toxic algae - ecology, physiology and diversity. Her research includes studies on the microbial food webs and how these are influenced by external factors.

Legrand's focus is on the complex biological and chemical interactions between phytoplankton and bacteria in the ocean and on their significant role in the formation of food webs for plankton. The research is crucial for being able to detect microbial processes that affect the energy flow and diversity of the ecosystem, such as fish stocks, eutrophication and algal blooms.



  • Member of Climate Commission, Kalmar Region (2017-now)
  • Member of Climate Commission, Kalmar Municipality (2016-now)
  • Member of Water Delegation in Southeast Sweden, national appointment (2015-now)
  • Steering Committee member for Knowledge Center for Forest and Water, Husebybruk, Kronoberg Region, (2018-now)

Past (2016-2020)

  • Pro vice-chancellor, Linnaeus University (2016-2020)
  • Chairman of the Quality Assurance Committee (2016-2018)
  • Chairman of the committee for a sustainable future (2019-2020)
  • Chairman of the faculties' interest council concerning eHealth (FIRE) (2016-2020)
  • Member of the NOVA board, FoU, education and business development, Oskarshamn (2016–2018)
  • Member of GreenAct Kronoberg, Kronoberg County Administrative Board (2016–ongoing)


Article in journal (Refereed)

Conference paper (Refereed)

Chapter in book (Refereed)

Collection (editor) (Refereed)

Article, review/survey (Refereed)

Article in journal (Other academic)

Conference paper (Other academic)

Chapter in book (Other academic)

Report (Other academic)

Other (Other academic)

Article in journal (Other (popular science, discussion, etc.))

Conference paper (Other (popular science, discussion, etc.))

Artistic output (Other (popular science, discussion, etc.))