1989 …2019
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Personal profile

Research

My present research fields: 

Utilization of algal biomass

The use of algal biomass for food and feed - but also for biofuels, high value products and waste water treatment.

Seagrass ecology

Effects of eutrophication on seagrass depth limits and occurrence, interactions between seagrass and sediment characteristics, effects of seagrass on nutrient cycling, seagrasses and multiple stressors, effects of anthropogenic contaminants on seagrasses.

Contaminants and plants and algae

Effects of contaminants – especially heavy metals – on photosynthesis, growth and survival in aquatic plants and algae.

Photosynthesis and photoinhibition in an ecological perspective

Carbon uptake and utilization in terrestrial and aquatic plants as well as algae. Light utilization and defense mechanisms against photoinhibition: Carotenoids, xanthophyll-cyclus, enzymatic quenching of free radicals, the physiological role of anthocyanins and other phenols in vegetative plant parts. The effects of natural and anthropogenic stressors, including heavy metals, on photosynthesis and photoinhibition. The relationship between the size, architecture and complexity of photosynthetic organisms and their photosynthetic and growth potential. The depth limits of aquatic plants modelled as a function of light and sediment characteristics.

Research and education information

Aquatic ecology

Plant biology

Plant ecophysiology

Plant ecology

Keywords

  • Biology, Biotechnology
  • Freshwater biology
  • Photoinhibition
  • Photosynthesis
  • Plant physiology
  • Plant ecology

Publication network Recent external collaboration on country level. Dive into details by clicking on the dots.

Research Output 1989 2019

Effects of salinity, commercial salts and water types on cultivation of the cryptophyte microalgae Rhodomonas salina and the calanoid copepod Acartia tonsa

Jepsen, P. M., Thoisen, C. V., Carron-Cabaret, T., Pinyol Gallemi, A., Nielsen, S. L. & Hansen, B. W., 4 Feb 2019, In : Journal of the World Aquaculture Society. 50, 1, p. 104-118 15 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File

Small-scale experiments aimed at optimization of large-scale production of the microalga Rhodomonas salina

Thoisen, C. V., Thuy, M. V. T., Carron-Cabaret, T., Jepsen, P. M., Nielsen, S. L. & Hansen, B. W., Aug 2018, In : Journal of Applied Phycology. 30, 4, p. 2193-2202 10 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File

Testing the yield of a pilot-scale bubble column photobioreactor for cultivation of the microalga Rhodomonas salina as feed for intensive calanoid copepod cultures

Thuy, M. V. T., Jepsen, P. M., Jørgensen, N. O. G., Hansen, B. W. & Nielsen, S. L., 7 Dec 2018, In : Aquaculture Research. 50, 1, p. 63-71 9 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File

A simple and fast method for extraction and quantification of cryptophyte phycoerythrin

Thoisen, C. V., Hansen, B. W. & Nielsen, S. L., 28 Jul 2017, In : MethodsX. 4, C, p. 209-213 5 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File

Projects 2005 2018

Mikroalger som mad

Nielsen, S. L. & Thoisen, C.

01/11/201731/03/2018

Project: Research

COMA: COpepod egg Mass production in Aquaculture

Jepsen, P. M., Hansen, B. W., Nielsen, S. L. & Thoisen, C.

30/05/201304/12/2017

Project: Research

AlgeInnovationsCenter

Madsen, P. H., Nielsen, S. L. & Holm-Nielsen, J. B.

Den europæiske fond for Regionsudvikling

01/08/201031/07/2013

Project: Research

Algal production for biofuel

Hunniche Madsen, P., Nielsen, S. L., Born, J. & Holm-Nielsen, J. B.

Lolland kommune

01/07/200931/12/2009

Project: Research

Activities 1988 2018

Carbon inputs and dynamics in the eutrophic estuary Roskilde Fjord, Denmark

Søren Laurentius Nielsen (Speaker)
18 Jun 2018

Activity: Talk or presentationLecture and oral contribution

Roskilde Universitet (External organisation)

Søren Laurentius Nielsen (Chairman)
3 Jun 2015

Activity: MembershipMembership in review committee

ESOF14Euroscience Open Forum 2014

Søren Laurentius Nielsen (Participant)
21 Jun 201426 Jun 2014

Activity: Participating in or organising an eventOrganisation and participation in conference

4th International Conference on Algal Biomass, Biofuels and Bioproducts

Søren Laurentius Nielsen (Participant)
15 Jun 201418 Jun 2014

Activity: Participating in or organising an eventOrganisation and participation in conference

Roskilde Universitet (External organisation)

Søren Laurentius Nielsen (Chairman)
24 Oct 2014

Activity: MembershipMembership in review committee

Press / Media

Tang er superfoood med fremtiden for sig

Søren Laurentius Nielsen

07/01/2019

1 item of media coverage

Press/Media: Press / Media

Morild langs danske kyster: Oplev havet lyse som et 80er-diskotek

Søren Laurentius Nielsen

12/08/201813/08/2018

3 items of media coverage

Press/Media: Press / Media

Vadehavets eget lysshow: Morild på Lakolk

Søren Laurentius Nielsen

20/07/201821/07/2018

2 items of media coverage

Press/Media: Press / Media

Nattens længde styrer planternes forår

Søren Laurentius Nielsen

21/03/2018

1 item of media coverage

Press/Media: Press / Media