Tommi Linnansaari

Professor

PhD

Biology

Bailey Hall

Fredericton

tommi.linnansaari@unb.ca
1 506 440 3851



Academic interests

  • Atlantic salmon
  • Diadromous fishes
  • Stream and river ecology
  • Hydropower
  • Telemetry

Brief biography

Dr. Tommi Linnansaari is Professor at the Department of Biology and Faculty of Forestry and Environmental Management, University of New Brunswick. He is also a Fellow of the Canadian Rivers Institute.

He did his undergraduate and M.Sc. degrees at the Department of Fisheries and Limnology at University of Helsinki (2003), and received his Ph.D. in 2009 at the Dept. of Biology at UNB. Both his M.Sc. and PhD. theses examined the ecology of wild Atlantic salmon.

Dr. Linnansaari is a fish ecologist, and his research lab focuses on Atlantic salmon ecology, the effects of anthropogenic impacts on rivers related to climate change, hydropower and other manipulations of flow due to consumptive and non-consumptive uses.

Linnansaari lab works widely on studying behavior and movements of other diadromous fishes, such as striped bass, American eel, shortnose sturgeon and anadromous brook trout both in natural and in hydropower-impacted rivers.

Research and development of fish telemetry tools is also at core of Linnansaari lab’s research portfolio, and their work uses a wide array of Passive Integrated Transponder (PIT), acoustic- and radiotelemetry methods.

Courses taught

  • BIOL 4746 Laboratory Studies in Fish Biology
  • BIOL 3873 Animal Behaviour
  • FOR 2113 Introductory Wildlife and Aquatic Ecology
  • ENVM 4973 Environmental Management Field Camp
  • ENVM 4111Applied Aquatic Sciences Techniques

Selected research

Roth DH, Wellband K, Phillips KP, Linnansaari T. (In press) Reproductive success of Smolt-to-Adult Supplementation (SAS) and wild Atlantic Salmon in an experimental stream under allopatric and sympatric conditions. North American Journal of Fisheries Management.

Corey E, Linnansaari T., O'Sullivan A., Curry RA, Cunjak, RA (2025). Wild juvenile Atlantic salmon (Salmo salar) offer insights into movement patterns of territorial freshwater fishes in relation to high temperature and proximity to thermal refuges. Canadian Journal of Fisheries and Aquatic Sciences.

Linnansaari T., O’Sullivan AM, Breau C. Corey EM, Collet EN, Curry RA, Cunjak RA (2023) The role of cold-water thermal refuges for stream salmonids in a changing climate - experiences from Atlantic Canada. Fishes 8, 471.