Juul, L., Danielsen, M., Nebel, C., Steinhagen, S., Bruhn, A., Jensen, S.K., Undeland, I. & Dalsgaard T.K. (2021). Ulva fenestrata protein – Comparison of three extraction methods with respect to protein yield and protein quality. Algal Research. doi:

Steinhagen, S., Enge, S., Larsson, K., Nylund, G.M., Albers, E., Pavia, H., Undeland, I. & Toth, G. (2021). Sustainable Large-Scale Aquaculture of the Northern Hemisphere Sea Lettuce, Ulva fenestrata, in an Off-Shore Seafarm. Journal of Marine Science and Engineering. 9(6), 615 doi:

Cai, C., Gu, K., Zhao, H., Steinhagen, S., He, P. & Wichard, T. (2021). Screening and verification of extranuclear genetic markers in green tide algae from the Yellow Sea. PLOS ONE 16(6): e0250968. doi:

Trigo, J.P., Engström, N., Steinhagen, S., Juul, L., Harrysson, H., Toth, G.B., Pavia, H., Scheers, N., & Undeland, I. (2021). In vitro digestibility and Caco-2 cell bioavailability of sea lettuce (Ulva fenestrata) proteins extracted with pH-shift technology. FOOD CHEMISTRY. doi: 10.1016/j.foodchem.2021.129683

Steinhagen, S., Düsedau, L. & Weinberger, F. (2021). DNA barcoding of the German green supralittoral zone indicates the distribution and phenotypic plasticity of Blidingia species and reveals Blidingia cornuta sp. nov.. TAXON. doi: 10.1002/tax.12445


Olsson, J., Raikova, S., Mayers, J.J., Steinhagen, S., Chuck, C.J., Nylund, G.M. & Albers, E. (2020). Effects of geographical location on potentially valuable components in Ulva intestinalis sampled along the Swedish coast. Applied Phycology. 1:1, 80-92, doi: 10.1080/26388081.2020.1827454

Wahlström, N., Steinhagen, S., Toth, G., Pavia, H., Edlund, U. (2020). Ulvan dialdehyde-gelatin hydrogels for removal of heavy metals and methylene blue from aqueous solution. Carbohydrate Polymers. doi: 10.1016/j.carbpol.2020.116841

Toth, G.B., Harrysson, H., Wahlström, N., Olsson, J., Oerbekke, A., Steinhagen, S., Kinnby, A., White, J., Albers, A., Edlund, U., Undeland, I. & Pavia, H. (2020). Effects of irradiance, temperature, nutrients, and pCO2 on the growth and biochemical composition of cultivated Ulva fenestrata. Journal of Applied Phycology. doi: 10.1007/s10811-020-02155-8

Olsson, J., Toth, G.B., Oerbekke, A., Cvijetinovic, S., Wahlström, N., Harrysson, H., Steinhagen, S., Kinnby, A., White, J., Edlund, U., Undeland, I., Pavia, H. & Albers, E. (2020), Cultivation conditions affect the monosaccharide composition in Ulva fenestrata. Journal of Applied Phycology. doi: 10.1007/s10811-020-02138-9


Steinhagen, S., Karez R. & Weinberger, F. (2019). Cryptic, alien, and lost species: Molecular diversity of Ulva sensu lato along the German coasts of the North and Baltic Seas. European Journal of Phycology. doi: 10.1080/09670262.2019.1597925.

Steinhagen, S., Barco, A., Wichard, T. & Weinberger, F. (2019), Conspecificity of the model organism Ulva mutabilis and Ulva compressa (Ulvophyceae, Chlorophyta). Journal of Phycology, 55: 25-36. doi: 10.1111/jpy.12804 

Steinhagen, S., Karez, R. & Weinberger, F. (2019) Molecular analysis of Ulva compressa (Chlorophyta, Ulvales) reveals its morphological plasticity, distribution and potential invasiveness on German North Sea and Baltic Sea coasts. European Journal of Phycology, 54:1, 102-114, doi: 10.1080/09670262.2018.1513167 


Steinhagen, S., Karez, R. & Weinberger, F. (2018). Surveying seaweeds from the Ulvales and Fucales in the world’s most frequently used artificial waterway, the Kiel Canal. Botanica Marina, 62(1), pp. 51-61. doi: 10.1515/bot-2018-0020 

Weinberger, F., Steinhagen, S., Afanasyev, D. &Karez, R. (2018). New records from the southern North Sea and first records from the Baltic Sea of Kornmannia leptoderma. Botanica Marina, 62(1), pp. 63-73. doi: 10.1515/bot-2018-0019 


Afanasyev, D., Kamnev, A., Sushkova, E., Steinhagen, S. (2016). A field guide to Ulvaspecies found in the Black, Azov, Caspian Seas and Eastern Baltic/ Edited by Prof. I.P. Yermakov, Publishing house Pero, Moscow, Russia.

Steinhagen, S. & Weinberger, F. (2016). Ulva und verwandte Grünalgen an Schleswig-Holsteins Küsten – Eine Revision des Arteninventars. Veröffentlichungen des Landesamtes für Landwirtschaft, Umwelt und ländliche Räume Schleswig-Holstein. Vergabenummern: 0608.451410; 0608.451412. 

Dr. Sophie Steinhagen