Letizia Tedesco

Senior research scientist

Polar biological oceanographer,
Adj. Prof. in Aquatic Sciences (University of Helsinki)

Contact information

E-mail: letizia.tedesco@syke.fi
Tel:+358 295 251 686

Finnish Environment Institute (Syke)
Marine and freshwater solutions
Ecosystem functions
Address: Latokartanonkaari 11, 00790, Helsinki, Finland
My webpage: www.letiziatedesco.me

@Google Scholar

Current tasks

I am responsible for marine ecosystem modelling.

Research Topics

Since 2006 I have been working with marine biogeochemical models, particularly focusing on ice-covered oceans ecosystems. I am fascinated by everything sea ice, especially its ecology. I am the main developer of the first stoichiometric sea-ice model (http://www.bfm-community.eu), i.e. a sea-ice biogeochemical model that through internal flexible stoichiometry aims to represent the acclimation patterns that organisms manifest in their natural environment. 

My scientific interests include:

  • the development of biogeochemical models (including sea ice, pelagic and benthic habitats) at several temporal  (from seasonal to decadal) and spatial (from local to global) scales
  • studies of phenology and phenological changes in polar marine environments
  • studies of the impacts of  climatic and non-climatic stressors on polar marine ecosystems
  • closing of the global carbon cycle
  • climate change scenarios and projections
  • the role of sea ice biota and biogeochemistry in the Earth system
  • adaptations and mitigations
  • development of models suitable for ecosystem management and as tool for decision makers
  • sicence communication, journalism and popularisation.


I have a Master in Biological Oceanography (2005, Tuscia University, Italy) and PhD in Oceanography (2009, University of Bologna, Italy). Since 2019 I am Adj. Prof. in Aquatic Sciences at the University of Helsinki. Previously, I worked also at CNR (Venice, Italy), CMCC (Bologna, Italy), Finnish Institute of Marine Research (FIMR, Helsinki, Finland), Tallin Univeristy of Technology (Tallinn, Estonia), and Finnish Meteorological Institute (FMI, Helsinki, Finland).

Latest research projects

  • EU H2020 CRiceS (Climate Relevant interactions and feedbacks: the key role of sea ice and Snow in the polar and global climate system) project (2021-2025)

  • Academy of Finland IMICROBE (Primary productivity Iron limitation in the Marginal Ice Zone of the Southern Ocean – unraveling the role of bacteria as mediators in the iron cycle) project (2021-2024)

  • NERC and German Federal Ministry of Education and Research Project Diatom-ARCTIC (2018 -2020)

  • Norwegian Research Council FAABulous (Future Arctic Algae Blooms - and their role in the context of climate change) project (2015 - 2020)

Some of the other activities

  • Finnish representative for the IASC Cryosphere WG 
  • Fulbring Finland ambassador
  • Member of the BEPSII (Biogeochemical Exchange Processes at the Sea-Ice Interfaces ) WG Steering Committee under Clic, SOLAS, IASC and SCAR umbrellas
  • Member of the BFM system team
  • Reviewer for e.g., PNAS, Nature Climate Change
  • Reviewer for e.g., IPCC, SCOR,  and several national funding agencies
  • Guest Associate Editor for: Frontiers in Marine Science, Frontiers for Yound Minds, Annals of Glaciology.

Selected publications

Tedesco, L. 2022, The ecological crisis in the Arctic Ocean 360info.org, https://doi.org/10.54377/47d8-ed5c. 

Tedesco, L. and Post, E., 2022. Sea ice: An extraordinary and unique, yet fragile, biome, Past Global Changes Magazine 30 (2), 76-77, https://doi.org/10.22498/pages.30.2.76.

Lannuzel, D., Tedesco, L., van Leeuwe, M. et al. The future of Arctic sea-ice biogeochemistry and ice-associated ecosystems. Nat. Clim. Chang. 10, 983–992 (2020). https://doi.org/10.1038/s41558-020-00940-4

Tedesco, L., Vichi, M., Scoccimarro, E., 2019. Sea-ice algal phenology in a warmer Arctic, Science Advances,5, eaav4830, doi: 10.1126/sciadv.aav4830.

Up-to-date full list of my publications  can be found in Google Scholar

Published 2017-08-24 at 12:49, updated 2023-01-31 at 10:18

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