Jari Hänninen
Research station director, PhD, Doc.
jarhan@utu.fi +358 29 450 2241 +358 50 401 7838 Vesilinnantie 5 Turku Office: 317 ORCID identifier: https://orcid.org/0000-0001-8746-9570 |
Areas of expertise
aquatic ecology, marine biology, Baltic Sea, time series analysis
aquatic ecology, marine biology, Baltic Sea, time series analysis
Research community or research topic
Archipelago Sea research
Archipelago Sea research
Biography
Associate professor (2nd phase), Archipelago Research Institute / Biodiversity Unit, University of Turku
Associate professor (2nd phase), Archipelago Research Institute / Biodiversity Unit, University of Turku
Research
My role as an associate professor (2ⁿᵈ phase) at the research station of the Archipelago Research Institute gives me a chance to participate in many ongoing projects at the University of Turku. Close to my heart are 1. Global climate impacts on Baltic freshwater runoff and it's abiotic/biotic regulation of the Baltic Sea and the North Sea ecosystems by using time series analysis. 2. The effect of Baltic seawater salinity decrease on the growth, maturity, and feeding trade-off of the Baltic herring. 3. Sedimentology together with nano-/microplastics in the Archipelago Sea. 4. Ticks and tick-borne pathogens in Finland.
Fields of research and special fields of expertise:
• Marine Biology & Aquatic Ecology, Biological Oceanography
• Ecology of the Baltic Sea environment, especially the Archipelago Sea
• Long-term climatic changes, especially climatic seawater salinity decrease and eutrophication processes in the Baltic Sea and their effects on marine/aquatic biodiversity
• Predictive statistical time series modelling (e.g. ARIMA, Transfer Functions), Generalized Linear Mixed Models (GLIMMIX) and Statistical Downscaling using environmental monitoring data series.
Teaching
maasto-opetus Saaristomerellä ja Itämerellä, luennointi
Publications 
1 of 5
- Ghosts of weather past? Impact of past and present weather-related factors on the seasonal questing activity of Ixodes ricinus nymphs in southwestern Finland (2025)
- Parasites and Vectors
(A1 Refereed original research article in a scientific journal) - Human contributions to global soundscapes are less predictable than the acoustic rhythms of wildlife (2025)
- Nature Ecology and Evolution
(A1 Refereed original research article in a scientific journal) - A Mobile Application–Based Citizen Science Product to Compile Bird Observations (2024)
- Citizen Science: Theory and Practice
(A1 Refereed original research article in a scientific journal) - Changes in Atlantic climatic regulation mechanisms that underlie mesozooplankton biomass loss in the northern Baltic Sea (2024)
- Heliyon
(A1 Refereed original research article in a scientific journal) - Expanding sample volume for microscopical detection of nanoplastics (2024)
- Marine Environmental Research
(A1 Refereed original research article in a scientific journal) - Re-evaluation of Padre Secchi’s visual method for modern oceanography (2024)
- Frontiers in Marine Science
(A1 Refereed original research article in a scientific journal) - Turun yliopisto Seilissä 60 vuotta (2024)
- Turun Sanomat
(E1 Popularised article) - Detecting nanoplastics from sea water using microsopic methods (2023) Hiltunen Arto, Huopalainen Joona, Damlin Pia, Häkkilä Sirkku, Hänninen Jari
(Other publication) - Impact of Climate Change on Baltic Sea Zooplankton and Subartic Butterflies (2023) Fält-Nardmann Julia, Rousi Heta, Juutilainen Ilmari, Andersson Tommi, Itämies Juhani, Niemelä Pekka, Hänninen Jari
(Other publication) - Large-scale long-term passive-acoustic monitoring reveals spatio-temporal activity patterns of boreal bats (2023)
- Ecography
(A1 Refereed original research article in a scientific journal) - Raman signal amplifying membrane filters for nanoplastic research (2023) Huopalainen Joona, Hiltunen Arto, Damlin Pia, Häkkilä Sirkku, Hänninen Jari
(Other publication) - Saaristomeren tutkimuslaitoksen suunnitelmia 2023 (2023)
- Biodivari - Biodiversiteettiyksikön uutiset
(Other publication) - The prevalence of Corynosoma parasite worms in the great cormorants and the Baltic herring in the northern Baltic Sea, Finland (2023)
- International Journal for Parasitology: Parasites and Wildlife
(A1 Refereed original research article in a scientific journal) - Launching a study of nanoplastics in the Baltic Sea, SW Finland - Picking up small debris (2022) Hiltunen Arto, Hänninen Jari, Saarni Saija
(Other publication) - Long term regulative effects of Atlantic climatic factors on Archipelago Sea zooplankton biomass - a comparison with terrestrial arctic butterflies (2022) Rousi Heta, Fält-Nardmann Julia, Niemelä Pekka, Hänninen Jari
(Other publication) - Merten muoviongelmaa pitää ryhtyä ratkomaan heti (2022)
- Turun Sanomat
(E1 Popularised article) - Mesozooplankton trends and distributions in pelagic and littoral habitats of the Archipelago Sea, the northern Baltic
Sea, SW Finland (2022)- Memoranda Societatis Pro Fauna Et Flora Fennica
(A1 Refereed original research article in a scientific journal) - Saaristomeren tutkimuslaitoksen kesä oli täynnä tiedettä ja taidetta (2022)
- Biodivari - Biodiversiteettiyksikön uutiset
(Other publication) - ”Saaristomeri ei ole entisensä” – merihavaintosarjat kertovat ilmastonmuutoksen etenemisestä ja seurauksista (2022)
- MustRead
(E1 Popularised article) - Seilin suunnitelmia vuodelle 2022 (2022)
- Biodivari - Biodiversiteettiyksikön uutiset
(Other publication)
UTU Research Portal